Remove deprecation warnings reported with newer commons-io

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1910300 13f79535-47bb-0310-9956-ffa450edef68

osgi/src/test/java/org/apache/poi/osgi/OSGiExtractorsIT.java

@@ -57,7 +57,7 @@ public class OSGiExtractorsIT extends BaseOSGiTestCase {
         box.setText("Hello, World!");
         box.setAnchor(new Rectangle(36, 15, 648, 65));
 
-        UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream out = UnsynchronizedByteArrayOutputStream.builder().get();
         ppt.write(out);
         return out.toByteArray();
     }
@@ -66,7 +66,7 @@ public class OSGiExtractorsIT extends BaseOSGiTestCase {
         Sheet s = wb.createSheet("OSGi");
         s.createRow(0).createCell(0).setCellValue("Hello, World!");
 
-        UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream out = UnsynchronizedByteArrayOutputStream.builder().get();
         wb.write(out);
         return out.toByteArray();
 

osgi/src/test/java/org/apache/poi/osgi/OSGiSlideShowIT.java

@@ -75,7 +75,7 @@ public class OSGiSlideShowIT extends BaseOSGiTestCase {
         }
         box2.setAnchor(new Rectangle(36, 80, 648, 400));
 
-        try (UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             ppt.write(baos);
             try (InputStream bais = baos.toInputStream()) {
                 ppt = SlideShowFactory.create(bais);

osgi/src/test/java/org/apache/poi/osgi/OSGiSpreadsheetIT.java

@@ -48,7 +48,7 @@ public class OSGiSpreadsheetIT extends BaseOSGiTestCase {
         s.createRow(0).createCell(0).setCellValue("With OSGi");
         s.createRow(1).createCell(0).setCellFormula("SUM(A1:B3)");
 
-        try (UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             wb.write(baos);
             try (InputStream bais = baos.toInputStream()) {
                 wb = WorkbookFactory.create(bais);

poi-examples/src/main/java/org/apache/poi/examples/hssf/usermodel/OfficeDrawing.java

@@ -192,7 +192,7 @@ public final class OfficeDrawing {
     private static int loadPicture( String path, HSSFWorkbook wb ) throws IOException {
         int pictureIndex;
         try (FileInputStream fis = new FileInputStream(path);
-             UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+             UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             IOUtils.copy(fis, bos);
             pictureIndex = wb.addPicture(bos.toByteArray(), Workbook.PICTURE_TYPE_PNG);
         }

poi-examples/src/main/java/org/apache/poi/examples/xssf/usermodel/CustomXMLMapping.java

@@ -38,7 +38,7 @@ public final class CustomXMLMapping {
             for (XSSFMap map : wb.getCustomXMLMappings()) {
                 XSSFExportToXml exporter = new XSSFExportToXml(map);
 
-                UnsynchronizedByteArrayOutputStream os = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream os = UnsynchronizedByteArrayOutputStream.builder().get();
                 exporter.exportToXML(os, true);
                 String xml = os.toString(StandardCharsets.UTF_8);
                 System.out.println(xml);

poi-examples/src/test/java/org/apache/poi/integration/TestXLSX2CSV.java

@@ -35,7 +35,7 @@ import org.junit.jupiter.api.Test;
 
 public class TestXLSX2CSV {
     private PrintStream err;
-    private final UnsynchronizedByteArrayOutputStream errorBytes = new UnsynchronizedByteArrayOutputStream();
+    private final UnsynchronizedByteArrayOutputStream errorBytes = UnsynchronizedByteArrayOutputStream.builder().get();
 
     @BeforeEach
     public void setUp() throws UnsupportedEncodingException {
@@ -77,7 +77,7 @@ public class TestXLSX2CSV {
 
     @Test
     public void testSampleFile() throws Exception {
-        final UnsynchronizedByteArrayOutputStream outputBytes = new UnsynchronizedByteArrayOutputStream();
+        final UnsynchronizedByteArrayOutputStream outputBytes = UnsynchronizedByteArrayOutputStream.builder().get();
         PrintStream out = new PrintStream(outputBytes, true, StandardCharsets.UTF_8.name());
 
         // The package open is instantaneous, as it should be.
@@ -96,7 +96,7 @@ public class TestXLSX2CSV {
 
     @Test
     public void testMinColumns() throws Exception {
-        final UnsynchronizedByteArrayOutputStream outputBytes = new UnsynchronizedByteArrayOutputStream();
+        final UnsynchronizedByteArrayOutputStream outputBytes = UnsynchronizedByteArrayOutputStream.builder().get();
         PrintStream out = new PrintStream(outputBytes, true, StandardCharsets.UTF_8.name());
 
         // The package open is instantaneous, as it should be.

poi-integration/src/test/java/org/apache/poi/stress/POIFSFileHandler.java

@@ -57,7 +57,7 @@ public class POIFSFileHandler extends AbstractFileHandler {
     }
 
     protected void handlePOIDocument(POIDocument doc) throws Exception {
-        try (UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream out = UnsynchronizedByteArrayOutputStream.builder().get()) {
             doc.write(out);
 
             try (InputStream in = out.toInputStream();

poi-integration/src/test/java/org/apache/poi/stress/SlideShowHandler.java

@@ -49,7 +49,7 @@ public abstract class SlideShowHandler extends POIFSFileHandler {
         readPictures(ss);
 
         // write out the file
-        UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream out = UnsynchronizedByteArrayOutputStream.builder().get();
         ss.write(out);
 
         readContent(ss);

poi-integration/src/test/java/org/apache/poi/stress/SpreadsheetHandler.java

@@ -61,7 +61,7 @@ public abstract class SpreadsheetHandler extends AbstractFileHandler {
     }
 
     private UnsynchronizedByteArrayOutputStream writeToArray(Workbook wb) throws IOException {
-        UnsynchronizedByteArrayOutputStream stream = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream stream = UnsynchronizedByteArrayOutputStream.builder().get();
         wb.write(stream);
         return stream;
     }

poi-integration/src/test/java/org/apache/poi/stress/XSSFBFileHandler.java

@@ -41,11 +41,11 @@ public class XSSFBFileHandler extends AbstractFileHandler {
     public void handleFile(InputStream stream, String path) throws Exception {
         byte[] bytes = IOUtils.toByteArray(stream);
 
-        try (OPCPackage opcPackage = OPCPackage.open(new UnsynchronizedByteArrayInputStream(bytes))) {
+        try (OPCPackage opcPackage = OPCPackage.open(UnsynchronizedByteArrayInputStream.builder().setByteArray(bytes).get())) {
             testOne(opcPackage);
         }
 
-        testNotHandledByWorkbookException(OPCPackage.open(new UnsynchronizedByteArrayInputStream(bytes)));
+        testNotHandledByWorkbookException(OPCPackage.open(UnsynchronizedByteArrayInputStream.builder().setByteArray(bytes).get()));
     }
 
     private void testNotHandledByWorkbookException(OPCPackage pkg) throws IOException {

poi-integration/src/test/java/org/apache/poi/stress/XSSFFileHandler.java

@@ -16,7 +16,6 @@
 ==================================================================== */
 package org.apache.poi.stress;
 
-import static org.apache.commons.io.output.NullOutputStream.NULL_OUTPUT_STREAM;
 import static org.apache.poi.xssf.XSSFTestDataSamples.getSampleFile;
 import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
 import static org.junit.jupiter.api.Assertions.assertFalse;
@@ -36,6 +35,7 @@ import java.util.Set;
 
 import javax.xml.transform.TransformerException;
 
+import org.apache.commons.io.output.NullOutputStream;
 import org.apache.commons.io.output.UnsynchronizedByteArrayOutputStream;
 import org.apache.poi.EncryptedDocumentException;
 import org.apache.poi.examples.ss.ExcelComparator;
@@ -72,7 +72,7 @@ public class XSSFFileHandler extends SpreadsheetHandler {
         // make sure the potentially large byte-array is freed up quickly again
         {
 
-            UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream();
+            UnsynchronizedByteArrayOutputStream out = UnsynchronizedByteArrayOutputStream.builder().get();
             IOUtils.copy(stream, out);
 
             if (pass != null) {
@@ -156,7 +156,7 @@ public class XSSFFileHandler extends SpreadsheetHandler {
             TransformerException {
         for (XSSFMap map : wb.getCustomXMLMappings()) {
             XSSFExportToXml exporter = new XSSFExportToXml(map);
-            exporter.exportToXML(NULL_OUTPUT_STREAM, true);
+            exporter.exportToXML(NullOutputStream.INSTANCE, true);
         }
     }
 

poi-ooxml/src/main/java/org/apache/poi/openxml4j/opc/internal/MemoryPackagePart.java

@@ -88,7 +88,12 @@ public final class MemoryPackagePart extends PackagePart {
         if (data == null) {
             data = new byte[0];
         }
-        return new UnsynchronizedByteArrayInputStream(data);
+        try {
+            return UnsynchronizedByteArrayInputStream.builder().setByteArray(data).get();
+        } catch (IOException e) {
+            // not possible with ByteArray but still declared in the API
+            throw new IllegalStateException(e);
+        }
     }
 
     @Override
@@ -113,7 +118,7 @@ public final class MemoryPackagePart extends PackagePart {
 
     @Override
     public boolean load(InputStream is) throws InvalidFormatException {
-        try (UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             // Grab the data
             IOUtils.copy(is, baos);
             // Save it

poi-ooxml/src/main/java/org/apache/poi/openxml4j/opc/internal/MemoryPackagePartOutputStream.java

@@ -33,7 +33,7 @@ public final class MemoryPackagePartOutputStream extends OutputStream {
 
     public MemoryPackagePartOutputStream(MemoryPackagePart part) {
         this._part = part;
-        _buff = new UnsynchronizedByteArrayOutputStream();
+        _buff = UnsynchronizedByteArrayOutputStream.builder().get();
     }
 
     @Override

poi-ooxml/src/main/java/org/apache/poi/openxml4j/util/ZipArchiveFakeEntry.java

@@ -104,7 +104,7 @@ import org.apache.poi.util.TempFile;
                 throw new IOException("temp file " + tempFile.getAbsolutePath() + " is missing");
             }
         } else if (data != null) {
-            return new UnsynchronizedByteArrayInputStream(data);
+            return UnsynchronizedByteArrayInputStream.builder().setByteArray(data).get();
         } else {
             throw new IOException("Cannot retrieve data from Zip Entry, probably because the Zip Entry was closed before the data was requested.");
         }

poi-ooxml/src/main/java/org/apache/poi/poifs/crypt/dsig/DigestOutputStream.java

@@ -65,7 +65,7 @@ import org.ietf.jgss.Oid;
     }
 
     public byte[] sign() throws IOException, GeneralSecurityException {
-        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             bos.write(getHashMagic());
             bos.write(md.digest());
 
@@ -91,7 +91,7 @@ import org.ietf.jgss.Oid;
         // in an earlier release the hashMagic (aka DigestAlgorithmIdentifier) contained only
         // an object identifier, but to conform with the header generated by the
         // javax-signature API, the empty <associated parameters> are also included
-        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             final byte[] oidBytes = new Oid(algo.rsaOid).getDER();
 
             bos.write(0x30);

poi-ooxml/src/main/java/org/apache/poi/poifs/crypt/dsig/OOXMLURIDereferencer.java

@@ -90,7 +90,7 @@ public class OOXMLURIDereferencer implements URIDereferencer {
             if (part.getPartName().toString().endsWith(".rels")) {
                 // although xmlsec has an option to ignore line breaks, currently this
                 // only affects .rels files, so we only modify these
-                try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+                try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
                     for (int ch; (ch = dataStream.read()) != -1; ) {
                         if (ch == 10 || ch == 13) continue;
                         bos.write(ch);

poi-ooxml/src/main/java/org/apache/poi/poifs/crypt/dsig/SignatureLine.java

@@ -341,7 +341,7 @@ public abstract class SignatureLine {
         rnd.drawImage(gfx, new Rectangle2D.Double(0, 0, defaultWidth, defaultHeight));
         gfx.dispose();
 
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get();
         ImageIO.write(bi, "PNG", bos);
         return bos.toByteArray();
     }
@@ -426,7 +426,7 @@ public abstract class SignatureLine {
 
         gfx.dispose();
 
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get();
         ImageIO.write(bi, "PNG", bos);
         return bos.toByteArray();
     }

poi-ooxml/src/main/java/org/apache/poi/poifs/crypt/dsig/facets/XAdESXLSignatureFacet.java

@@ -223,9 +223,12 @@ public class XAdESXLSignatureFacet implements SignatureFacet {
                 X509CRL crl;
                 try {
                     crl = (X509CRL) this.certificateFactory
-                        .generateCRL(new UnsynchronizedByteArrayInputStream(encodedCrl));
+                        .generateCRL(UnsynchronizedByteArrayInputStream.builder().setByteArray(encodedCrl).get());
                 } catch (CRLException e) {
                     throw new IllegalStateException("CRL parse error: " + e.getMessage(), e);
+                } catch (IOException e) {
+                    // not possible with ByteArray but still declared in the API
+                    throw new IllegalStateException(e);
                 }
 
                 CRLIdentifierType crlIdentifier = crlRef.addNewCRLIdentifier();
@@ -299,7 +302,7 @@ public class XAdESXLSignatureFacet implements SignatureFacet {
     }
 
     private static byte[] getC14nValue(List<Node> nodeList, String c14nAlgoId) {
-        try (UnsynchronizedByteArrayOutputStream c14nValue = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream c14nValue = UnsynchronizedByteArrayOutputStream.builder().get()) {
             for (Node node : nodeList) {
                 /*
                  * Re-initialize the c14n else the namespaces will get cached

poi-ooxml/src/main/java/org/apache/poi/xslf/draw/SVGImageRenderer.java

@@ -68,7 +68,7 @@ public class SVGImageRenderer implements ImageRenderer {
 
     @Override
     public void loadImage(byte[] data, String contentType) throws IOException {
-        loadImage(new UnsynchronizedByteArrayInputStream(data), contentType);
+        loadImage(UnsynchronizedByteArrayInputStream.builder().setByteArray(data).get(), contentType);
     }
 
     @Override

poi-ooxml/src/main/java/org/apache/poi/xslf/draw/SVGRenderExtension.java

@@ -310,7 +310,7 @@ public class SVGRenderExtension extends DefaultExtensionHandler {
         }
         if (imgData == null) {
             BufferedImage bi = imgRdr.getImage();
-            UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+            UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get();
             try {
                 ImageIO.write(bi, "PNG", bos);
             } catch (IOException e) {

poi-ooxml/src/main/java/org/apache/poi/xslf/usermodel/XSLFMetroShape.java

@@ -44,7 +44,7 @@ public class XSLFMetroShape implements MetroShapeProvider {
     /** parses the metro bytes to a XSLF shape */
     @Override
     public XSLFShape parseShape(byte[] metroBytes) throws IOException {
-        try (OPCPackage pkg = OPCPackage.open(new UnsynchronizedByteArrayInputStream(metroBytes))) {
+        try (OPCPackage pkg = OPCPackage.open(UnsynchronizedByteArrayInputStream.builder().setByteArray(metroBytes).get())) {
             PackagePartName shapePN = PackagingURIHelper.createPartName("/drs/shapexml.xml");
             PackagePart shapePart = pkg.getPart(shapePN);
             if (shapePart == null) {

poi-ooxml/src/main/java/org/apache/poi/xslf/usermodel/XSLFPictureShape.java

@@ -372,7 +372,7 @@ public class XSLFPictureShape extends XSLFSimpleShape
         }
 
         BufferedImage thmBI = renderer.getImage(dim);
-        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream(100000)) {
+        try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().setBufferSize(100000).get()) {
             // use extension instead of enum name, because of "jpeg"
             ImageIO.write(thmBI, pt.extension.substring(1), bos);
 

poi-ooxml/src/main/java/org/apache/poi/xslf/util/DummyFormat.java

@@ -34,7 +34,7 @@ public class DummyFormat implements OutputFormat {
 
     public DummyFormat() {
         try {
-            bos = new UnsynchronizedByteArrayOutputStream();
+            bos = UnsynchronizedByteArrayOutputStream.builder().get();
             dummy2d = new DummyGraphics2d(new PrintStream(bos, true, StandardCharsets.UTF_8.name()));
         } catch (UnsupportedEncodingException e) {
             throw new IllegalStateException(e);

poi-ooxml/src/main/java/org/apache/poi/xssf/streaming/SXSSFWorkbook.java

@@ -1019,7 +1019,7 @@ public class SXSSFWorkbook implements Workbook {
         flushSheets();
 
         //Save the template
-        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             _wb.write(bos);
 
             //Substitute the template entries with the generated sheet data files

poi-ooxml/src/main/java/org/apache/poi/xssf/usermodel/XSSFBuiltinTableStyle.java

@@ -409,8 +409,8 @@ public enum XSSFBuiltinTableStyle {
                 // hack because I can't figure out how to get XMLBeans to parse a sub-element in a standalone manner
                 // - build a fake styles.xml file with just this built-in
                 StylesTable styles = new StylesTable();
-                try (UnsynchronizedByteArrayInputStream bis = new UnsynchronizedByteArrayInputStream(
-                        styleXML(dxfsNode, tableStyleNode).getBytes(StandardCharsets.UTF_8))) {
+                try (UnsynchronizedByteArrayInputStream bis = UnsynchronizedByteArrayInputStream.builder().setByteArray(
+                        styleXML(dxfsNode, tableStyleNode).getBytes(StandardCharsets.UTF_8)).get()) {
                     styles.readFrom(bis);
                 }
                 styleMap.put(builtIn, new XSSFBuiltinTypeStyleStyle(builtIn, styles.getExplicitTableStyle(styleName)));

poi-ooxml/src/main/java/org/apache/poi/xssf/usermodel/XSSFChartSheet.java

@@ -57,7 +57,7 @@ public class XSSFChartSheet extends XSSFSheet  {
     @Override
     protected void read(InputStream is) throws IOException {
         //initialize the supeclass with a blank worksheet
-        super.read(new UnsynchronizedByteArrayInputStream(BLANK_WORKSHEET));
+        super.read(UnsynchronizedByteArrayInputStream.builder().setByteArray(BLANK_WORKSHEET).get());
 
         try {
             chartsheet = ChartsheetDocument.Factory.parse(is, DEFAULT_XML_OPTIONS).getChartsheet();
@@ -95,7 +95,7 @@ public class XSSFChartSheet extends XSSFSheet  {
     }
 
     private static byte[] blankWorksheet(){
-        UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream out = UnsynchronizedByteArrayOutputStream.builder().get();
         try {
             new XSSFSheet().write(out);
         } catch (IOException e){

poi-ooxml/src/main/java/org/apache/poi/xssf/usermodel/XSSFWorkbook.java

@@ -511,7 +511,7 @@ public class XSSFWorkbook extends POIXMLDocument implements Workbook, Date1904Su
     protected static OPCPackage newPackage(XSSFWorkbookType workbookType) {
         OPCPackage pkg = null;
         try {
-            pkg = OPCPackage.create(new UnsynchronizedByteArrayOutputStream());    // NOSONAR - we do not want to close this here
+            pkg = OPCPackage.create(UnsynchronizedByteArrayOutputStream.builder().get());    // NOSONAR - we do not want to close this here
             // Main part
             PackagePartName corePartName = PackagingURIHelper.createPartName(XSSFRelation.WORKBOOK.getDefaultFileName());
             // Create main part relationship
@@ -665,7 +665,7 @@ public class XSSFWorkbook extends POIXMLDocument implements Workbook, Date1904Su
         }
 
 
-        try (UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream out = UnsynchronizedByteArrayOutputStream.builder().get()) {
             srcSheet.write(out);
             try (InputStream bis = out.toInputStream()) {
                 clonedSheet.read(bis);
@@ -2466,7 +2466,7 @@ public class XSSFWorkbook extends POIXMLDocument implements Workbook, Date1904Su
 
         Ole10Native ole10 = new Ole10Native(label, fileName, command, oleData);
 
-        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream(oleData.length+500)) {
+        try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().setBufferSize(oleData.length+500).get()) {
             ole10.writeOut(bos);
 
             try (POIFSFileSystem poifs = new POIFSFileSystem()) {

poi-ooxml/src/main/java/org/apache/poi/xwpf/usermodel/XWPFDocument.java

@@ -174,7 +174,7 @@ public class XWPFDocument extends POIXMLDocument implements Document, IBody {
     protected static OPCPackage newPackage() {
         OPCPackage pkg = null;
         try {
-            pkg = OPCPackage.create(new UnsynchronizedByteArrayOutputStream());    // NOSONAR - we do not want to close this here
+            pkg = OPCPackage.create(UnsynchronizedByteArrayOutputStream.builder().get());    // NOSONAR - we do not want to close this here
             // Main part
             PackagePartName corePartName = PackagingURIHelper.createPartName(XWPFRelation.DOCUMENT.getDefaultFileName());
             // Create main part relationship

poi-ooxml/src/test/java/org/apache/poi/ooxml/TestPOIXMLDocument.java

@@ -17,7 +17,6 @@
 
 package org.apache.poi.ooxml;
 
-import static org.apache.commons.io.output.NullOutputStream.NULL_OUTPUT_STREAM;
 import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
@@ -38,6 +37,7 @@ import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
 
+import org.apache.commons.io.output.NullOutputStream;
 import org.apache.poi.POIDataSamples;
 import org.apache.poi.ooxml.POIXMLDocumentPart.RelationPart;
 import org.apache.poi.ooxml.util.PackageHelper;
@@ -141,7 +141,7 @@ public final class TestPOIXMLDocument {
 
                 // Should not be able to write a document that has been closed
                 doc.close();
-                IOException e2 = assertThrows(IOException.class, () -> doc.write(NULL_OUTPUT_STREAM),
+                IOException e2 = assertThrows(IOException.class, () -> doc.write(NullOutputStream.INSTANCE),
                     "Should not be able to write a document that has been closed.");
                 assertEquals("Cannot write data, document seems to have been closed already", e2.getMessage());
 

poi-ooxml/src/test/java/org/apache/poi/openxml4j/opc/TestPackage.java

@@ -218,7 +218,7 @@ public final class TestPackage {
      */
     @Test
     void createPackageWithCoreDocument() throws IOException, InvalidFormatException, URISyntaxException, SAXException {
-        UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get();
         try (OPCPackage pkg = OPCPackage.create(baos)) {
 
             // Add a core document
@@ -676,7 +676,7 @@ public final class TestPackage {
     @Test
     void zipBombCreateAndHandle()
     throws IOException, EncryptedDocumentException {
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream(2500000);
+        UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().setBufferSize(2500000).get();
 
         try (ZipFile zipFile = ZipHelper.openZipFile(getSampleFile("sample.xlsx"));
              ZipArchiveOutputStream append = new ZipArchiveOutputStream(bos)) {

poi-ooxml/src/test/java/org/apache/poi/openxml4j/opc/TestPackageCoreProperties.java

@@ -216,7 +216,7 @@ public final class TestPackageCoreProperties {
 
     @Test
     void testGetPropertiesLO() throws Exception {
-        UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream out = UnsynchronizedByteArrayOutputStream.builder().get();
         // Open the package
         try (OPCPackage pkg1 = OPCPackage.open(openSampleStream("51444.xlsx"))) {
             PackageProperties props1 = pkg1.getPackageProperties();
@@ -284,7 +284,7 @@ public final class TestPackageCoreProperties {
         SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.ROOT);
         df.setTimeZone(LocaleUtil.TIMEZONE_UTC);
 
-        UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get();
         try (InputStream is = openSampleStream("OPCCompliance_CoreProperties_AlternateTimezones.docx");
             OPCPackage pkg1 = OPCPackage.open(is)) {
             PackagePropertiesPart props1 = (PackagePropertiesPart) pkg1.getPackageProperties();

poi-ooxml/src/test/java/org/apache/poi/openxml4j/opc/TestRelationships.java

@@ -198,7 +198,7 @@ class TestRelationships {
 
 
         // Write out and re-load
-        UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get();
         pkg.save(baos);
 
         // use revert to not re-write the input file
@@ -226,7 +226,7 @@ class TestRelationships {
 
     @Test
     void testCreateRelationsFromScratch() throws Exception {
-        UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get();
         OPCPackage pkg = OPCPackage.create(baos);
 
         PackagePart partA =
@@ -298,7 +298,7 @@ class TestRelationships {
         OPCPackage pkg = OPCPackage.open(filepath);
         assert_50154(pkg);
 
-        UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get();
         pkg.save(baos);
 
         // use revert to not re-write the input file
@@ -353,7 +353,7 @@ class TestRelationships {
 
    @Test
    void testSelfRelations_bug51187() throws Exception {
-        UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get();
         PackageRelationship rel1;
         try (OPCPackage pkg = OPCPackage.create(baos)) {
 
@@ -399,7 +399,7 @@ class TestRelationships {
             assertEquals("mailto:nobody@nowhere.uk%C2%A0", targetUri.toASCIIString());
             assertEquals("nobody@nowhere.uk\u00A0", targetUri.getSchemeSpecificPart());
 
-            UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream();
+            UnsynchronizedByteArrayOutputStream out = UnsynchronizedByteArrayOutputStream.builder().get();
             pkg1.save(out);
 
             try (OPCPackage pkg2 = OPCPackage.open(out.toInputStream())) {

poi-ooxml/src/test/java/org/apache/poi/openxml4j/opc/ZipFileAssert.java

@@ -106,7 +106,7 @@ public final class ZipFileAssert {
             while ((entree = zis.getNextEntry()) != null) {
 
                 /* Create an array for the current entry */
-                UnsynchronizedByteArrayOutputStream byteArray = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream byteArray = UnsynchronizedByteArrayOutputStream.builder().get();
                 IOUtils.copy(zis, byteArray);
                 zipContent.put(entree.getName(), byteArray);
             }

poi-ooxml/src/test/java/org/apache/poi/openxml4j/opc/compliance/TestOPCComplianceCoreProperties.java

@@ -216,7 +216,7 @@ public final class TestOPCComplianceCoreProperties {
     @Test
     void testNoCoreProperties_saveNew() throws Exception {
         String sampleFileName = "OPCCompliance_NoCoreProperties.xlsx";
-        UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get();
 
         try (OPCPackage pkg = OPCPackage.open(getSampleFile(sampleFileName).getPath())) {
             // Verify it has empty properties

poi-ooxml/src/test/java/org/apache/poi/openxml4j/opc/internal/marshallers/TestZipPackagePropertiesMarshaller.java

@@ -17,7 +17,6 @@
 
 package org.apache.poi.openxml4j.opc.internal.marshallers;
 
-import static org.apache.commons.io.output.NullOutputStream.NULL_OUTPUT_STREAM;
 import static org.apache.poi.openxml4j.opc.PackagingURIHelper.PACKAGE_RELATIONSHIPS_ROOT_URI;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.junit.jupiter.api.Assertions.assertTrue;
@@ -27,6 +26,7 @@ import java.io.OutputStream;
 
 import org.apache.commons.compress.archivers.ArchiveEntry;
 import org.apache.commons.compress.archivers.zip.ZipArchiveOutputStream;
+import org.apache.commons.io.output.NullOutputStream;
 import org.apache.commons.io.output.UnsynchronizedByteArrayOutputStream;
 import org.apache.poi.openxml4j.exceptions.OpenXML4JException;
 import org.apache.poi.openxml4j.opc.PackagePartName;
@@ -39,7 +39,7 @@ class TestZipPackagePropertiesMarshaller {
     private final PartMarshaller marshaller = new ZipPackagePropertiesMarshaller();
 
     private boolean marshall() throws OpenXML4JException {
-        return marshall(new ZipArchiveOutputStream(new UnsynchronizedByteArrayOutputStream()));
+        return marshall(new ZipArchiveOutputStream(UnsynchronizedByteArrayOutputStream.builder().get()));
     }
 
     private boolean marshall(OutputStream zos) throws OpenXML4JException {
@@ -51,7 +51,7 @@ class TestZipPackagePropertiesMarshaller {
 
     @Test
     void nonZipOutputStream() {
-        assertThrows(IllegalArgumentException.class, () -> marshall(NULL_OUTPUT_STREAM));
+        assertThrows(IllegalArgumentException.class, () -> marshall(NullOutputStream.INSTANCE));
     }
 
     @Test
@@ -61,7 +61,7 @@ class TestZipPackagePropertiesMarshaller {
 
     @Test
     void ioException() {
-        ZipArchiveOutputStream zos = new ZipArchiveOutputStream(new UnsynchronizedByteArrayOutputStream()) {
+        ZipArchiveOutputStream zos = new ZipArchiveOutputStream(UnsynchronizedByteArrayOutputStream.builder().get()) {
             @Override
             public void putArchiveEntry(final ArchiveEntry archiveEntry) throws IOException {
                 throw new IOException("TestException");

poi-ooxml/src/test/java/org/apache/poi/poifs/crypt/dsig/DummyKeystore.java

@@ -152,7 +152,7 @@ public class DummyKeystore {
     public DummyKeystore(String pfxInput, String storePass) throws GeneralSecurityException, IOException {
         CryptoFunctions.registerBouncyCastle();
         keystore = KeyStore.getInstance("PKCS12");
-        try (InputStream fis = new UnsynchronizedByteArrayInputStream(RawDataUtil.decompress(pfxInput))) {
+        try (InputStream fis = UnsynchronizedByteArrayInputStream.builder().setByteArray(RawDataUtil.decompress(pfxInput)).get()) {
             keystore.load(fis, storePass.toCharArray());
         }
     }

poi-ooxml/src/test/java/org/apache/poi/poifs/crypt/dsig/TestSignatureInfo.java

@@ -209,7 +209,7 @@ class TestSignatureInfo {
         SignatureInfo si = new SignatureInfo();
         si.setSignatureConfig(signatureConfig);
 
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream(100000);
+        UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().setBufferSize(100000).get();
         try (XSSFWorkbook wb1 = new XSSFWorkbook()) {
             wb1.createSheet().createRow(1).createCell(1).setCellValue("Test");
             wb1.write(bos);
@@ -426,7 +426,7 @@ class TestSignatureInfo {
     void testSignEnvelopingDocument() throws Exception {
         String testFile = "hello-world-unsigned.xlsx";
         File sigCopy = testdata.getFile(testFile);
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream(50000);
+        UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().setBufferSize(50000).get();
 
         final String execTimestr;
 
@@ -698,7 +698,7 @@ class TestSignatureInfo {
         DummyKeystore ks = new DummyKeystore(STORE_PASS);
         KeyCertPair certPair = ks.createDummyKey();
 
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get();
         try (XWPFDocument doc = new XWPFDocument()) {
             XWPFHyperlinkRun r = doc.createParagraph().createHyperlinkRun("http://poi.apache.org");
             r.setText("Hyperlink");
@@ -743,7 +743,7 @@ class TestSignatureInfo {
         try (SXSSFWorkbook wb1 = new SXSSFWorkbook((XSSFWorkbook)WorkbookFactory.create(tpl), 10)) {
             wb1.setCompressTempFiles(true);
             wb1.removeSheetAt(0);
-            UnsynchronizedByteArrayOutputStream os = new UnsynchronizedByteArrayOutputStream();
+            UnsynchronizedByteArrayOutputStream os = UnsynchronizedByteArrayOutputStream.builder().get();
             wb1.write(os);
 
             try (OPCPackage pkg = OPCPackage.open(os.toInputStream())) {
@@ -888,7 +888,7 @@ class TestSignatureInfo {
             throw e;
         }
 
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get();
         try (XSSFWorkbook wb = new XSSFWorkbook()) {
             wb.createSheet().createRow(0).createCell(0).setCellValue("Test");
             wb.write(bos);
@@ -1075,7 +1075,7 @@ class TestSignatureInfo {
             throw e;
         }
 
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get();
         try (XSSFWorkbook wb = new XSSFWorkbook()) {
             wb.createSheet().createRow(0).createCell(0).setCellValue("test");
             wb.write(bos);

poi-ooxml/src/test/java/org/apache/poi/poifs/crypt/tests/TestAgileEncryptionParameters.java

@@ -93,7 +93,7 @@ class TestAgileEncryptionParameters {
         }
 
         // create a small sample workbook for encrypting
-        UnsynchronizedByteArrayOutputStream bosOrig = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream bosOrig = UnsynchronizedByteArrayOutputStream.builder().get();
         try (XSSFWorkbook workbook = new XSSFWorkbook()) {
             XSSFSheet sheet = workbook.createSheet();
             XSSFRow row = sheet.createRow(0);
@@ -136,7 +136,7 @@ class TestAgileEncryptionParameters {
                 os.write(testData);
             }
 
-            try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+            try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
                 fsEnc.writeFilesystem(bos);
 
                 bos.close();

poi-ooxml/src/test/java/org/apache/poi/poifs/crypt/tests/TestDecryptor.java

@@ -142,7 +142,7 @@ class TestDecryptor {
             Decryptor d = Decryptor.getInstance(info);
             d.verifyPassword("pwd123");
 
-            final UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream(10000);
+            final UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().setBufferSize(10000).get();
             try (final ZipArchiveInputStream zis = new ZipArchiveInputStream(d.getDataStream(fs))) {
                 int[] sizes = { 3711, 1155, 445, 9376, 450, 588, 1337, 2593, 304, 7910 };
                 for (int size : sizes) {

poi-ooxml/src/test/java/org/apache/poi/poifs/crypt/tests/TestEncryptor.java

@@ -16,7 +16,6 @@
 ==================================================================== */
 package org.apache.poi.poifs.crypt.tests;
 
-import static org.apache.commons.io.output.NullOutputStream.NULL_OUTPUT_STREAM;
 import static org.apache.poi.poifs.crypt.CryptoFunctions.getMessageDigest;
 import static org.junit.jupiter.api.Assertions.assertArrayEquals;
 import static org.junit.jupiter.api.Assertions.assertEquals;
@@ -38,6 +37,7 @@ import java.util.Random;
 
 import javax.crypto.Cipher;
 
+import org.apache.commons.io.output.NullOutputStream;
 import org.apache.commons.io.output.UnsynchronizedByteArrayOutputStream;
 import org.apache.poi.POIDataSamples;
 import org.apache.poi.openxml4j.opc.ContentTypes;
@@ -76,7 +76,7 @@ class TestEncryptor {
             payloadExpected = IOUtils.toByteArray(is);
         }
 
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get();
         try (POIFSFileSystem fs = new POIFSFileSystem()) {
             EncryptionInfo ei = new EncryptionInfo(EncryptionMode.binaryRC4);
             Encryptor enc = ei.getEncryptor();
@@ -113,7 +113,7 @@ class TestEncryptor {
             payloadExpected = IOUtils.toByteArray(is);
         }
 
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get();
         try (POIFSFileSystem fs = new TempFilePOIFSFileSystem()) {
             EncryptionInfo ei = new EncryptionInfo(EncryptionMode.agile);
             Encryptor enc = ei.getEncryptor();
@@ -200,7 +200,7 @@ class TestEncryptor {
         Encryptor e = Encryptor.getInstance(infoActual);
         e.confirmPassword(pass, keySpec, keySalt, verifierExpected, verifierSaltExpected, integritySalt);
 
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get();
         try (POIFSFileSystem fs = new POIFSFileSystem()) {
             try (OutputStream os = e.getDataStream(fs)) {
                 os.write(payloadExpected);
@@ -287,7 +287,7 @@ class TestEncryptor {
         // now we use a newly generated salt/verifier and check
         // if the file content is still the same
 
-        final UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream(50000);
+        final UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().setBufferSize(50000).get();
         try (POIFSFileSystem fs = new POIFSFileSystem()) {
 
             final EncryptionInfo infoActual2 = new EncryptionInfo(
@@ -331,7 +331,7 @@ class TestEncryptor {
     @Test
     void encryptPackageWithoutCoreProperties() throws Exception {
         // Open our file without core properties
-        UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get();
         try (InputStream is = POIDataSamples.getOpenXML4JInstance().openResourceAsStream("OPCCompliance_NoCoreProperties.xlsx");
             OPCPackage pkg = OPCPackage.open(is)) {
 
@@ -530,7 +530,7 @@ class TestEncryptor {
                 os.write(zipInput);
             }
 
-            UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+            UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get();
             fsNew.writeFilesystem(bos);
 
             try (POIFSFileSystem fsReload = new POIFSFileSystem(bos.toInputStream())) {
@@ -624,7 +624,7 @@ class TestEncryptor {
 
             try (InputStream is = dec.getDataStream(poifs);
                  DigestInputStream dis = new DigestInputStream(is, md)) {
-                IOUtils.copy(dis, NULL_OUTPUT_STREAM);
+                IOUtils.copy(dis, NullOutputStream.INSTANCE);
             }
         }
 

poi-ooxml/src/test/java/org/apache/poi/poifs/crypt/tests/TestHxxFEncryption.java

@@ -105,7 +105,7 @@ class TestHxxFEncryption {
         File f = sampleDir.getFile(file);
         Biff8EncryptionKey.setCurrentUserPassword(password);
         try (POITextExtractor te1 = ExtractorFactory.createExtractor(f);
-             UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+             UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             Biff8EncryptionKey.setCurrentUserPassword(newPass);
             try (POIDocument doc = (POIDocument) te1.getDocument()) {
                 doc.write(bos);
@@ -126,7 +126,7 @@ class TestHxxFEncryption {
         File f = sampleDir.getFile(file);
         Biff8EncryptionKey.setCurrentUserPassword(password);
         try (POITextExtractor te1 = ExtractorFactory.createExtractor(f);
-             UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+             UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             // first remove encryption
             Biff8EncryptionKey.setCurrentUserPassword(null);
             try (POIDocument doc = (POIDocument) te1.getDocument()) {
@@ -174,7 +174,7 @@ class TestHxxFEncryption {
 
     @Test
     public void changeEncryptionMode() throws IOException {
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream(10_000);
+        UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().setBufferSize(10_000).get();
 
         try (HSSFWorkbook wb = new HSSFWorkbook()) {
             wb.createSheet().createRow(1).createCell(1).setCellValue("Test");

poi-ooxml/src/test/java/org/apache/poi/sl/tests/TestOleShape.java

@@ -113,7 +113,7 @@ class TestOleShape {
     @ParameterizedTest
     @MethodSource("data")
     void embedData(Api api, ObjectMetaData.Application app) throws IOException, ReflectiveOperationException {
-        final UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream(50000);
+        final UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().setBufferSize(50000).get();
         try (SlideShow<?,?> ppt = createSlideShow(api)) {
             final PictureData picData = ppt.addPicture(pictureFile,  PictureType.EMF);
             final Slide<?,?> slide = ppt.createSlide();

poi-ooxml/src/test/java/org/apache/poi/sl/tests/TestSlide.java

@@ -55,7 +55,7 @@ class TestSlide {
         ppt1.createSlide().setHidden(true);
         ppt1.createSlide();
 
-        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             ppt1.write(bos);
 
             try (InputStream is = bos.toInputStream();

poi-ooxml/src/test/java/org/apache/poi/sl/tests/TestTable.java

@@ -125,7 +125,7 @@ class TestTable {
             }
         }
 
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get();
         ppt1.write(bos);
 
         try (SlideShow<?,?> ppt2 = SlideShowFactory.create(bos.toInputStream())) {

poi-ooxml/src/test/java/org/apache/poi/ss/tests/usermodel/TestEmbedOLEPackage.java

@@ -123,7 +123,7 @@ class TestEmbedOLEPackage {
 
             try (POIFSFileSystem scratchFS = new POIFSFileSystem();
                 POIFSFileSystem ole1FS = new POIFSFileSystem(new ByteArrayInputStream(oleShapes.get(0).getObjectData()))) {
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get();
                 scratch.writeOut(bos);
                 scratchFS.createDocument(bos.toInputStream(), Ole10Native.OLE10_NATIVE);
                 scratchFS.getRoot().setStorageClsid(ClassIDPredefined.OLE_V1_PACKAGE.getClassID());
@@ -222,7 +222,7 @@ class TestEmbedOLEPackage {
         sh1.setAnchor(new java.awt.Rectangle(50, 50, 100, 200));
         sh1.setFillColor(java.awt.Color.red);
 
-        UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get();
         ppt.write(bos);
         ppt.close();
 

poi-ooxml/src/test/java/org/apache/poi/xslf/TestXSLFBugs.java

@@ -964,7 +964,7 @@ class TestXSLFBugs {
 
             final List<Object> strings = new ArrayList<>();
 
-            DummyGraphics2d dgfx = new DummyGraphics2d(new NullPrintStream()) {
+            DummyGraphics2d dgfx = new DummyGraphics2d(NullPrintStream.INSTANCE) {
                 @Override
                 public void drawString(AttributedCharacterIterator iterator, float x, float y) {
                     // For the test file, common sl draws textruns one by one and not mixed
@@ -1009,7 +1009,7 @@ class TestXSLFBugs {
                 { 79.58198774450841, 53.20887318960063, 109.13118501448272, 9.40935058567127 },
         };
 
-        DummyGraphics2d dgfx = new DummyGraphics2d(new NullPrintStream()) {
+        DummyGraphics2d dgfx = new DummyGraphics2d(NullPrintStream.INSTANCE) {
             int idx = 0;
             @Override
             public void clip(java.awt.Shape s) {
@@ -1065,7 +1065,7 @@ class TestXSLFBugs {
             assertNotNull(targetSlide);
             assertEquals(2, targetPresentation.getPictureData().size());
 
-            targetPresentation.write(NullOutputStream.NULL_OUTPUT_STREAM);
+            targetPresentation.write(NullOutputStream.INSTANCE);
         }
     }
 
@@ -1143,7 +1143,7 @@ class TestXSLFBugs {
 
         final ArrayList<LinearGradientPaint> linearGradients = new ArrayList<>();
         final ArrayList<RadialGradientPaint> radialGradients = new ArrayList<>();
-        final DummyGraphics2d dgfx = new DummyGraphics2d(new NullPrintStream())
+        final DummyGraphics2d dgfx = new DummyGraphics2d(NullPrintStream.INSTANCE)
         {
             public void setPaint(final Paint paint) {
                 if (paint instanceof LinearGradientPaint) {

poi-ooxml/src/test/java/org/apache/poi/xslf/TestXSLFSlideCopy.java

@@ -40,7 +40,7 @@ class TestXSLFSlideCopy {
         try (
                 InputStream stream = slTests.openResourceAsStream("copy-slide-demo.pptx");
                 XMLSlideShow slideShow = new XMLSlideShow(stream);
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()
+                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()
         ) {
             XSLFSlide defaultSlide = getSlideByShapeName(slideShow, shapeName);
             int slideIndex = defaultSlide.getSlideNumber() - 1;

poi-ooxml/src/test/java/org/apache/poi/xslf/XSLFTestDataSamples.java

@@ -43,7 +43,7 @@ public class XSLFTestDataSamples {
     }
 
     public static XMLSlideShow writeOutAndReadBack(XMLSlideShow doc) throws IOException {
-        try (UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream(4096)) {
+        try (UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().setBufferSize(4096).get()) {
             doc.write(baos);
             try (InputStream bais = baos.toInputStream()) {
                 return new XMLSlideShow(bais);

poi-ooxml/src/test/java/org/apache/poi/xslf/usermodel/TestXSLFShape.java

@@ -90,7 +90,7 @@ class TestXSLFShape {
     void testReplaceTextInShapes() throws IOException {
         try (
                 XMLSlideShow ppt = XSLFTestDataSamples.openSampleDocument("shapes.pptx");
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()
+                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()
         ) {
             assertEquals(6, ppt.getSlides().size());
             XSLFSlide slide0 = ppt.getSlides().get(0);
@@ -135,7 +135,7 @@ class TestXSLFShape {
     void testReplaceTextInShapesXDDF() throws IOException {
         try (
                 XMLSlideShow ppt = XSLFTestDataSamples.openSampleDocument("shapes.pptx");
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()
+                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()
         ) {
             assertEquals(6, ppt.getSlides().size());
             XSLFSlide slide0 = ppt.getSlides().get(0);
@@ -180,7 +180,7 @@ class TestXSLFShape {
     void testCloneSlideAndReplaceText() throws IOException {
         try (
                 XMLSlideShow ppt = XSLFTestDataSamples.openSampleDocument("shapes.pptx");
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()
+                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()
         ) {
             assertEquals(6, ppt.getSlides().size());
             XSLFSlide slide0 = ppt.getSlides().get(0);
@@ -245,7 +245,7 @@ class TestXSLFShape {
     void testCloneSlideAndReplaceTextXDDF() throws IOException {
         try (
                 XMLSlideShow ppt = XSLFTestDataSamples.openSampleDocument("shapes.pptx");
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()
+                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()
         ) {
             assertEquals(6, ppt.getSlides().size());
             XSLFSlide slide0 = ppt.getSlides().get(0);

poi-ooxml/src/test/java/org/apache/poi/xslf/usermodel/TestXSLFTextParagraph.java

@@ -452,7 +452,7 @@ class TestXSLFTextParagraph {
 
             assertEquals("This is a highlight test", sh.getText());
 
-            DummyGraphics2d dgfx = new DummyGraphics2d(new NullPrintStream()) {
+            DummyGraphics2d dgfx = new DummyGraphics2d(NullPrintStream.INSTANCE) {
                 @Override
                 public void drawString(AttributedCharacterIterator iterator, float x, float y) {
                     // For the test file, common sl draws textruns one by one and not mixed

poi-ooxml/src/test/java/org/apache/poi/xssf/DeferredSXSSFITestDataProvider.java

@@ -68,7 +68,7 @@ public final class DeferredSXSSFITestDataProvider implements ITestDataProvider {
             throw new IllegalArgumentException("Expected an instance of XSSFWorkbook");
         }
 
-        try (UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             wb.write(baos);
             try (InputStream is = baos.toInputStream()) {
                 return new XSSFWorkbook(is);
@@ -82,7 +82,7 @@ public final class DeferredSXSSFITestDataProvider implements ITestDataProvider {
      * Returns an XSSFWorkbook since SXSSFWorkbook is write-only
      */
     public XSSFWorkbook inMemoryWriteOutAndReadBack(SXSSFWorkbook wb) {
-        try (UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             wb.writeAvoidingTempFiles(baos);
             try (InputStream is = baos.toInputStream()) {
                 return new XSSFWorkbook(is);

poi-ooxml/src/test/java/org/apache/poi/xssf/SXSSFITestDataProvider.java

@@ -67,7 +67,7 @@ public class SXSSFITestDataProvider implements ITestDataProvider {
             throw new IllegalArgumentException("Expected an instance of SXSSFWorkbook");
         }
 
-        try (UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             wb.write(baos);
             try (InputStream is = baos.toInputStream()) {
                 return new XSSFWorkbook(is);

poi-ooxml/src/test/java/org/apache/poi/xssf/TestSSUtilVsXSSFColor.java

@@ -35,7 +35,7 @@ class TestSSUtilVsXSSFColor {
 
         try (
                 XSSFWorkbook workbook = new XSSFWorkbook();
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()
+                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()
         ) {
             XSSFCellStyle cellStyle = workbook.createCellStyle();
             final String rgbS = "ffff00";

poi-ooxml/src/test/java/org/apache/poi/xssf/TestXSSFMemoryLeak.java

@@ -72,7 +72,7 @@ public class TestXSSFMemoryLeak {
             // not freed until we free up the Cell itself
             //verifier.addObject(ctCell);
 
-            try (OutputStream out = new UnsynchronizedByteArrayOutputStream(8192)) {
+            try (OutputStream out = UnsynchronizedByteArrayOutputStream.builder().setBufferSize(8192).get()) {
                 wb.write(out);
             }
 

poi-ooxml/src/test/java/org/apache/poi/xssf/XSSFTestDataSamples.java

@@ -116,7 +116,7 @@ public class XSSFTestDataSamples {
      * @throws IOException If writing the file fails
      */
     public static <R extends Workbook> UnsynchronizedByteArrayOutputStream writeOut(R wb) throws IOException {
-        UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream(8192);
+        UnsynchronizedByteArrayOutputStream out = UnsynchronizedByteArrayOutputStream.builder().setBufferSize(8192).get();
         wb.write(out);
         return out;
     }

poi-ooxml/src/test/java/org/apache/poi/xssf/eventusermodel/TestXSSFReader.java

@@ -376,7 +376,7 @@ public final class TestXSSFReader {
 
     @Test
     void testBug65676() throws Exception {
-        try (UnsynchronizedByteArrayOutputStream output = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream output = UnsynchronizedByteArrayOutputStream.builder().get()) {
             try(Workbook wb = new SXSSFWorkbook()) {
                 Row r = wb.createSheet("Sheet").createRow(0);
                 r.createCell(0).setCellValue(1.2); /* A1: Number 1.2 */

poi-ooxml/src/test/java/org/apache/poi/xssf/extractor/TestXSSFExportToXML.java

@@ -72,7 +72,7 @@ public final class TestXSSFExportToXML {
 
                 XSSFMap map = mapInfo.getXSSFMapById(1);
                 XSSFExportToXml exporter = new XSSFExportToXml(map);
-                UnsynchronizedByteArrayOutputStream os = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream os = UnsynchronizedByteArrayOutputStream.builder().get();
                 exporter.exportToXML(os, true);
                 String xml = os.toString(StandardCharsets.UTF_8);
 
@@ -120,7 +120,7 @@ public final class TestXSSFExportToXML {
 
                 XSSFMap map = mapInfo.getXSSFMapById(1);
                 XSSFExportToXml exporter = new XSSFExportToXml(map);
-                UnsynchronizedByteArrayOutputStream os = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream os = UnsynchronizedByteArrayOutputStream.builder().get();
                 exporter.exportToXML(os, true);
                 String xml = os.toString(StandardCharsets.UTF_8);
 
@@ -194,7 +194,7 @@ public final class TestXSSFExportToXML {
 
                     XSSFExportToXml exporter = new XSSFExportToXml(map);
                     String xml;
-                    try (UnsynchronizedByteArrayOutputStream os = new UnsynchronizedByteArrayOutputStream()) {
+                    try (UnsynchronizedByteArrayOutputStream os = UnsynchronizedByteArrayOutputStream.builder().get()) {
                         exporter.exportToXML(os, true);
                         xml = os.toString(StandardCharsets.UTF_8);
                     }
@@ -231,7 +231,7 @@ public final class TestXSSFExportToXML {
         try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("CustomXMLMapping-singleattributenamespace.xlsx")) {
             for (XSSFMap map : wb.getCustomXMLMappings()) {
                 XSSFExportToXml exporter = new XSSFExportToXml(map);
-                UnsynchronizedByteArrayOutputStream os = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream os = UnsynchronizedByteArrayOutputStream.builder().get();
                 SAXParseException ex = assertThrows(SAXParseException.class, () -> exporter.exportToXML(os, true));
                 assertTrue(p.matcher(ex.getMessage()).find(),
                         "Did not find pattern " + p + " in " + ex.getMessage());
@@ -256,7 +256,7 @@ public final class TestXSSFExportToXML {
                 assertNotNull(map, "XSSFMap is null");
 
                 XSSFExportToXml exporter = new XSSFExportToXml(map);
-                UnsynchronizedByteArrayOutputStream os = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream os = UnsynchronizedByteArrayOutputStream.builder().get();
                 exporter.exportToXML(os, true);
                 String xmlData = os.toString(StandardCharsets.UTF_8);
 
@@ -300,7 +300,7 @@ public final class TestXSSFExportToXML {
                 assertNotNull(map, "XSSFMap is null");
 
                 XSSFExportToXml exporter = new XSSFExportToXml(map);
-                UnsynchronizedByteArrayOutputStream os = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream os = UnsynchronizedByteArrayOutputStream.builder().get();
                 exporter.exportToXML(os, true);
                 String xmlData = os.toString(StandardCharsets.UTF_8);
 
@@ -335,7 +335,7 @@ public final class TestXSSFExportToXML {
                 assertNotNull(map, "XSSFMap is null");
 
                 XSSFExportToXml exporter = new XSSFExportToXml(map);
-                UnsynchronizedByteArrayOutputStream os = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream os = UnsynchronizedByteArrayOutputStream.builder().get();
                 exporter.exportToXML(os, true);
                 String xmlData = os.toString(StandardCharsets.UTF_8);
 
@@ -374,7 +374,7 @@ public final class TestXSSFExportToXML {
                 assertNotNull(map, "XSSFMap is null");
 
                 XSSFExportToXml exporter = new XSSFExportToXml(map);
-                UnsynchronizedByteArrayOutputStream os = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream os = UnsynchronizedByteArrayOutputStream.builder().get();
                 exporter.exportToXML(os, true);
                 String xmlData = os.toString(StandardCharsets.UTF_8);
 
@@ -400,7 +400,7 @@ public final class TestXSSFExportToXML {
             for (XSSFMap map : wb.getCustomXMLMappings()) {
                 XSSFExportToXml exporter = new XSSFExportToXml(map);
 
-                UnsynchronizedByteArrayOutputStream os = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream os = UnsynchronizedByteArrayOutputStream.builder().get();
                 exporter.exportToXML(os, true);
                 String xmlData = os.toString(StandardCharsets.UTF_8);
 
@@ -478,7 +478,7 @@ public final class TestXSSFExportToXML {
                 assertNotNull(map, "XSSFMap is null");
 
                 XSSFExportToXml exporter = new XSSFExportToXml(map);
-                UnsynchronizedByteArrayOutputStream os = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream os = UnsynchronizedByteArrayOutputStream.builder().get();
                 exporter.exportToXML(os, true);
                 String xmlData = os.toString(StandardCharsets.UTF_8);
 
@@ -556,7 +556,7 @@ public final class TestXSSFExportToXML {
                 assertNotNull(map, "XSSFMap is null");
 
                 XSSFExportToXml exporter = new XSSFExportToXml(map);
-                UnsynchronizedByteArrayOutputStream os = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream os = UnsynchronizedByteArrayOutputStream.builder().get();
                 exporter.exportToXML(os, true);
                 String xmlData = os.toString(StandardCharsets.UTF_8);
 
@@ -587,7 +587,7 @@ public final class TestXSSFExportToXML {
                 assertNotNull(map, "XSSFMap is null");
 
                 XSSFExportToXml exporter = new XSSFExportToXml(map);
-                UnsynchronizedByteArrayOutputStream os = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream os = UnsynchronizedByteArrayOutputStream.builder().get();
                 exporter.exportToXML(os, false);
                 String xmlData = os.toString(StandardCharsets.UTF_8);
 
@@ -619,7 +619,7 @@ public final class TestXSSFExportToXML {
                 assertNotNull(map, "XSSFMap is null");
 
                 XSSFExportToXml exporter = new XSSFExportToXml(map);
-                UnsynchronizedByteArrayOutputStream os = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream os = UnsynchronizedByteArrayOutputStream.builder().get();
                 exporter.exportToXML(os, true);
                 String xmlData = os.toString(StandardCharsets.UTF_8);
 
@@ -645,7 +645,7 @@ public final class TestXSSFExportToXML {
             for (XSSFMap map : mappings) {
                 XSSFExportToXml exporter = new XSSFExportToXml(map);
 
-                UnsynchronizedByteArrayOutputStream os = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream os = UnsynchronizedByteArrayOutputStream.builder().get();
                 exporter.exportToXML(os, false);
                 assertNotNull(os.toString(StandardCharsets.UTF_8));
             }
@@ -657,7 +657,7 @@ public final class TestXSSFExportToXML {
         try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("61281.xlsx")) {
             for (XSSFMap map : wb.getCustomXMLMappings()) {
                 XSSFExportToXml exporter = new XSSFExportToXml(map);
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get();
                 exporter.exportToXML(bos, true);
                 assertNotNull(DocumentHelper.readDocument(bos.toInputStream()));
                 String exportedXml = bos.toString(StandardCharsets.UTF_8);
@@ -671,7 +671,7 @@ public final class TestXSSFExportToXML {
         try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("xxe_in_schema.xlsx")) {
             for (XSSFMap map : wb.getCustomXMLMappings()) {
                 XSSFExportToXml exporter = new XSSFExportToXml(map);
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get();
                 assertThrows(SAXParseException.class, () -> exporter.exportToXML(bos, true));
             }
         }

poi-ooxml/src/test/java/org/apache/poi/xssf/streaming/OpcZipTest.java

@@ -34,8 +34,8 @@ class OpcZipTest {
     void compareOutput() throws Exception {
         Map<String, String> contents = createContents();
         try (
-                UnsynchronizedByteArrayOutputStream bos1 = new UnsynchronizedByteArrayOutputStream();
-                UnsynchronizedByteArrayOutputStream bos2 = new UnsynchronizedByteArrayOutputStream()
+                UnsynchronizedByteArrayOutputStream bos1 = UnsynchronizedByteArrayOutputStream.builder().get();
+                UnsynchronizedByteArrayOutputStream bos2 = UnsynchronizedByteArrayOutputStream.builder().get()
         ) {
             try (OpcOutputStream zip = new OpcOutputStream(bos1)) {
                 for (Map.Entry<String, String> entry : contents.entrySet()) {

poi-ooxml/src/test/java/org/apache/poi/xssf/streaming/TestSXSSFSheet.java

@@ -119,7 +119,7 @@ public final class TestSXSSFSheet extends BaseTestXSheet {
 
     @Test
     void flushBufferedDaat() throws IOException {
-        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             try (SXSSFWorkbook wb = new SXSSFWorkbook(1)) {
                 SXSSFSheet sheet = wb.createSheet("my-sheet");
 
@@ -193,7 +193,7 @@ public final class TestSXSSFSheet extends BaseTestXSheet {
             //one level
             sheet.groupRow(9, 10);
 
-            try(UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+            try(UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
                 workbook.write(bos);
                 try(XSSFWorkbook xssfWorkbook = new XSSFWorkbook(bos.toInputStream())) {
                     XSSFSheet xssfSheet = xssfWorkbook.getSheetAt(0);
@@ -223,7 +223,7 @@ public final class TestSXSSFSheet extends BaseTestXSheet {
             //two level
             sheet.groupRow(10, 13);
 
-            try(UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+            try(UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
                 workbook.write(bos);
                 try(XSSFWorkbook xssfWorkbook = new XSSFWorkbook(bos.toInputStream())) {
                     XSSFSheet xssfSheet = xssfWorkbook.getSheetAt(0);

poi-ooxml/src/test/java/org/apache/poi/xssf/streaming/TestSXSSFWorkbook.java

@@ -19,7 +19,6 @@
 
 package org.apache.poi.xssf.streaming;
 
-import static org.apache.commons.io.output.NullOutputStream.NULL_OUTPUT_STREAM;
 import static org.apache.poi.POITestCase.assertEndsWith;
 import static org.apache.poi.POITestCase.assertStartsWith;
 import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
@@ -37,6 +36,7 @@ import java.io.IOException;
 import java.time.LocalDate;
 import java.util.Arrays;
 
+import org.apache.commons.io.output.NullOutputStream;
 import org.apache.commons.io.output.UnsynchronizedByteArrayOutputStream;
 import org.apache.poi.POIDataSamples;
 import org.apache.poi.common.usermodel.HyperlinkType;
@@ -358,12 +358,12 @@ public final class TestSXSSFWorkbook extends BaseTestXWorkbook {
     void bug53515() throws Exception {
         try (Workbook wb1 = new SXSSFWorkbook(10)) {
             populateWorkbook(wb1);
-            assertDoesNotThrow(() -> wb1.write(NULL_OUTPUT_STREAM));
-            assertDoesNotThrow(() -> wb1.write(NULL_OUTPUT_STREAM));
+            assertDoesNotThrow(() -> wb1.write(NullOutputStream.INSTANCE));
+            assertDoesNotThrow(() -> wb1.write(NullOutputStream.INSTANCE));
             try (Workbook wb2 = new XSSFWorkbook()) {
                 populateWorkbook(wb2);
-                assertDoesNotThrow(() -> wb2.write(NULL_OUTPUT_STREAM));
-                assertDoesNotThrow(() -> wb2.write(NULL_OUTPUT_STREAM));
+                assertDoesNotThrow(() -> wb2.write(NullOutputStream.INSTANCE));
+                assertDoesNotThrow(() -> wb2.write(NullOutputStream.INSTANCE));
             }
         }
     }
@@ -481,7 +481,7 @@ public final class TestSXSSFWorkbook extends BaseTestXWorkbook {
                 }
             }
 
-            assertDoesNotThrow(() -> swb.write(NULL_OUTPUT_STREAM));
+            assertDoesNotThrow(() -> swb.write(NullOutputStream.INSTANCE));
             swb.dispose();
         }
     }
@@ -499,7 +499,7 @@ public final class TestSXSSFWorkbook extends BaseTestXWorkbook {
         File input = XSSFTestDataSamples.getSampleFile("sample.xlsx");
 
         try (OPCPackage pkg = OPCPackage.open(input, PackageAccess.READ)) {
-            UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+            UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get();
             try (XSSFWorkbook xssf = new XSSFWorkbook(pkg)) {
                 try (SXSSFWorkbook wb = new SXSSFWorkbook(xssf, 2)) {
                     Sheet s = wb.createSheet(sheetName);
@@ -542,7 +542,7 @@ public final class TestSXSSFWorkbook extends BaseTestXWorkbook {
     void addHyperlink() throws Exception {
         try (
             SXSSFWorkbook wb = new SXSSFWorkbook();
-            UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()
+            UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()
         ) {
             SXSSFSheet sheet = wb.createSheet("s1");
             SXSSFRow row = sheet.createRow(0);
@@ -568,7 +568,7 @@ public final class TestSXSSFWorkbook extends BaseTestXWorkbook {
     void addDimension() throws IOException {
         try (
                 SXSSFWorkbook wb = new SXSSFWorkbook();
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()
+                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()
         ) {
             SXSSFSheet sheet = wb.createSheet();
             sheet.createRow(2).createCell(3).setCellValue("top left");
@@ -587,7 +587,7 @@ public final class TestSXSSFWorkbook extends BaseTestXWorkbook {
     void addDimension1() throws IOException {
         try (
                 SXSSFWorkbook wb = new SXSSFWorkbook(1);
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()
+                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()
         ) {
             SXSSFSheet sheet = wb.createSheet();
             sheet.createRow(2).createCell(3).setCellValue("top left");
@@ -612,7 +612,7 @@ public final class TestSXSSFWorkbook extends BaseTestXWorkbook {
             assertEquals(6, sheet.getLastRowNum());
             try (
                     SXSSFWorkbook sxssfWorkbook = new SXSSFWorkbook(wb);
-                    UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()
+                    UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()
             ) {
                 sxssfWorkbook.write(bos);
                 try (XSSFWorkbook xssfWorkbook = new XSSFWorkbook(bos.toInputStream())) {
@@ -627,7 +627,7 @@ public final class TestSXSSFWorkbook extends BaseTestXWorkbook {
     void addDimensionDisabled() throws IOException {
         try (
                 SXSSFWorkbook wb = new SXSSFWorkbook();
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()
+                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()
         ) {
             wb.setShouldCalculateSheetDimensions(false);
             SXSSFSheet sheet = wb.createSheet();
@@ -655,7 +655,7 @@ public final class TestSXSSFWorkbook extends BaseTestXWorkbook {
     void dateStyle() throws IOException {
         try (
                 SXSSFWorkbook workbook = new SXSSFWorkbook();
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()
+                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()
         ) {
             SXSSFSheet sheet = workbook.createSheet();
             SXSSFRow row = sheet.createRow(0);

poi-ooxml/src/test/java/org/apache/poi/xssf/streaming/TestSXSSFWorkbookWithCustomZipEntrySource.java

@@ -20,7 +20,6 @@
 package org.apache.poi.xssf.streaming;
 
 import static java.nio.charset.StandardCharsets.UTF_8;
-import static org.apache.commons.io.output.NullOutputStream.NULL_OUTPUT_STREAM;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
@@ -32,6 +31,7 @@ import java.io.InputStream;
 import java.io.OutputStream;
 import java.util.List;
 
+import org.apache.commons.io.output.NullOutputStream;
 import org.apache.commons.io.output.UnsynchronizedByteArrayOutputStream;
 import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
 import org.apache.poi.openxml4j.opc.OPCPackage;
@@ -58,7 +58,7 @@ public final class TestSXSSFWorkbookWithCustomZipEntrySource {
     // write an unencrypted workbook to disk, but any temporary files are encrypted
     @Test
     void customZipEntrySource() throws IOException {
-        UnsynchronizedByteArrayOutputStream os = new UnsynchronizedByteArrayOutputStream(8192);
+        UnsynchronizedByteArrayOutputStream os = UnsynchronizedByteArrayOutputStream.builder().setBufferSize(8192).get();
         try (SXSSFWorkbookWithCustomZipEntrySource workbook = new SXSSFWorkbookWithCustomZipEntrySource()) {
             SXSSFSheet sheet1 = workbook.createSheet(sheetName);
             SXSSFRow row1 = sheet1.createRow(1);
@@ -113,7 +113,7 @@ public final class TestSXSSFWorkbookWithCustomZipEntrySource {
         SXSSFRow row1 = sheet1.createRow(1);
         SXSSFCell cell1 = row1.createCell(1);
         cell1.setCellValue(cellValue);
-        workbook.write(NULL_OUTPUT_STREAM);
+        workbook.write(NullOutputStream.INSTANCE);
         workbook.close();
         List<File> tempFiles = workbook.getTempFiles();
         assertEquals(1, tempFiles.size());

poi-ooxml/src/test/java/org/apache/poi/xssf/streaming/TestSXSSFWorkbookWithNullAutoSizeTracker.java

@@ -19,6 +19,7 @@
 
 package org.apache.poi.xssf.streaming;
 
+import org.apache.commons.io.output.NullOutputStream;
 import org.apache.commons.io.output.UnsynchronizedByteArrayOutputStream;
 import org.apache.poi.POIDataSamples;
 import org.apache.poi.common.usermodel.HyperlinkType;
@@ -44,7 +45,6 @@ import java.io.FileOutputStream;
 import java.io.IOException;
 import java.util.Arrays;
 
-import static org.apache.commons.io.output.NullOutputStream.NULL_OUTPUT_STREAM;
 import static org.apache.poi.POITestCase.assertEndsWith;
 import static org.apache.poi.POITestCase.assertStartsWith;
 import static org.junit.jupiter.api.Assertions.*;
@@ -337,12 +337,12 @@ final class TestSXSSFWorkbookWithNullAutoSizeTracker extends BaseTestXWorkbook {
     void bug53515() throws Exception {
         try (Workbook wb1 = new SXSSFWorkbook(10)) {
             populateWorkbook(wb1);
-            assertDoesNotThrow(() -> wb1.write(NULL_OUTPUT_STREAM));
-            assertDoesNotThrow(() -> wb1.write(NULL_OUTPUT_STREAM));
+            assertDoesNotThrow(() -> wb1.write(NullOutputStream.INSTANCE));
+            assertDoesNotThrow(() -> wb1.write(NullOutputStream.INSTANCE));
             try (Workbook wb2 = new XSSFWorkbook()) {
                 populateWorkbook(wb2);
-                assertDoesNotThrow(() -> wb2.write(NULL_OUTPUT_STREAM));
-                assertDoesNotThrow(() -> wb2.write(NULL_OUTPUT_STREAM));
+                assertDoesNotThrow(() -> wb2.write(NullOutputStream.INSTANCE));
+                assertDoesNotThrow(() -> wb2.write(NullOutputStream.INSTANCE));
             }
         }
     }
@@ -460,7 +460,7 @@ final class TestSXSSFWorkbookWithNullAutoSizeTracker extends BaseTestXWorkbook {
                 }
             }
 
-            assertDoesNotThrow(() -> swb.write(NULL_OUTPUT_STREAM));
+            assertDoesNotThrow(() -> swb.write(NullOutputStream.INSTANCE));
             swb.dispose();
         }
     }
@@ -478,7 +478,7 @@ final class TestSXSSFWorkbookWithNullAutoSizeTracker extends BaseTestXWorkbook {
         File input = XSSFTestDataSamples.getSampleFile("sample.xlsx");
 
         try (OPCPackage pkg = OPCPackage.open(input, PackageAccess.READ)) {
-            UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+            UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get();
             try (XSSFWorkbook xssf = new XSSFWorkbook(pkg)) {
                 try (SXSSFWorkbook wb = new SXSSFWorkbook(xssf, 2)) {
                     Sheet s = wb.createSheet(sheetName);
@@ -521,7 +521,7 @@ final class TestSXSSFWorkbookWithNullAutoSizeTracker extends BaseTestXWorkbook {
     void addHyperlink() throws Exception {
         try (
             SXSSFWorkbook wb = new SXSSFWorkbook();
-            UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()
+            UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()
         ) {
             SXSSFSheet sheet = wb.createSheet("s1");
             SXSSFRow row = sheet.createRow(0);
@@ -547,7 +547,7 @@ final class TestSXSSFWorkbookWithNullAutoSizeTracker extends BaseTestXWorkbook {
     void addDimension() throws IOException {
         try (
                 SXSSFWorkbook wb = new SXSSFWorkbook();
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()
+                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()
         ) {
             SXSSFSheet sheet = wb.createSheet();
             sheet.createRow(2).createCell(3).setCellValue("top left");
@@ -566,7 +566,7 @@ final class TestSXSSFWorkbookWithNullAutoSizeTracker extends BaseTestXWorkbook {
     void addDimension1() throws IOException {
         try (
                 SXSSFWorkbook wb = new SXSSFWorkbook(1);
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()
+                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()
         ) {
             SXSSFSheet sheet = wb.createSheet();
             sheet.createRow(2).createCell(3).setCellValue("top left");
@@ -591,7 +591,7 @@ final class TestSXSSFWorkbookWithNullAutoSizeTracker extends BaseTestXWorkbook {
             assertEquals(6, sheet.getLastRowNum());
             try (
                     SXSSFWorkbook sxssfWorkbook = new SXSSFWorkbook(wb);
-                    UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()
+                    UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()
             ) {
                 sxssfWorkbook.write(bos);
                 try (XSSFWorkbook xssfWorkbook = new XSSFWorkbook(bos.toInputStream())) {
@@ -606,7 +606,7 @@ final class TestSXSSFWorkbookWithNullAutoSizeTracker extends BaseTestXWorkbook {
     void addDimensionDisabled() throws IOException {
         try (
                 SXSSFWorkbook wb = new SXSSFWorkbook();
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()
+                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()
         ) {
             wb.setShouldCalculateSheetDimensions(false);
             SXSSFSheet sheet = wb.createSheet();

poi-ooxml/src/test/java/org/apache/poi/xssf/usermodel/TestSXSSFBugs.java

@@ -253,7 +253,7 @@ public final class TestSXSSFBugs extends BaseTestBugzillaIssues {
 
     @Test
     void test65619() throws Exception {
-        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             try (SXSSFWorkbook workbook = new SXSSFWorkbook(100)) {
                 SXSSFSheet sheet = workbook.createSheet("Test Sheet 1");
                 Font font = workbook.createFont();
@@ -308,7 +308,7 @@ public final class TestSXSSFBugs extends BaseTestBugzillaIssues {
             assertEquals(value, cell.getStringCellValue());
             // so far so good
 
-            try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+            try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
                 wb.write(bos);
 
                 try (XSSFWorkbook testWb = new XSSFWorkbook(bos.toInputStream())) {
@@ -356,7 +356,7 @@ public final class TestSXSSFBugs extends BaseTestBugzillaIssues {
             assertEquals(blueStyle.getIndex(), r3.getCell(4).getCellStyle().getIndex());
             assertEquals(pinkStyle.getIndex(), r3.getCell(6).getCellStyle().getIndex());
 
-            try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+            try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
                 wb.write(bos);
                 try (XSSFWorkbook wb2 = new XSSFWorkbook(bos.toInputStream())) {
                     XSSFSheet wb2Sheet = wb2.getSheetAt(0);

poi-ooxml/src/test/java/org/apache/poi/xssf/usermodel/TestUnfixedBugs.java

@@ -278,7 +278,7 @@ public final class TestUnfixedBugs {
         checkRow57423(testSheet, 17, "17");
         checkRow57423(testSheet, 18, "18");
 
-        UnsynchronizedByteArrayOutputStream stream = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream stream = UnsynchronizedByteArrayOutputStream.builder().get();
         ((XSSFSheet)testSheet).write(stream);
 
         // verify that the resulting XML has the rows in correct order as required by Excel

poi-ooxml/src/test/java/org/apache/poi/xssf/usermodel/TestXSSFBugs.java

@@ -19,7 +19,6 @@ package org.apache.poi.xssf.usermodel;
 
 import static java.time.Duration.between;
 import static java.time.Instant.now;
-import static org.apache.commons.io.output.NullOutputStream.NULL_OUTPUT_STREAM;
 import static org.apache.logging.log4j.util.Unbox.box;
 import static org.apache.poi.extractor.ExtractorFactory.OOXML_PACKAGE;
 import static org.apache.poi.openxml4j.opc.TestContentType.isOldXercesActive;
@@ -48,6 +47,7 @@ import java.util.*;
 
 import org.apache.commons.compress.archivers.zip.ZipArchiveEntry;
 import org.apache.commons.compress.archivers.zip.ZipFile;
+import org.apache.commons.io.output.NullOutputStream;
 import org.apache.commons.io.output.UnsynchronizedByteArrayOutputStream;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
@@ -1537,7 +1537,7 @@ public final class TestXSSFBugs extends BaseTestBugzillaIssues {
                 Thread.sleep(10);
             }
 
-            UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream(8096);
+            UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().setBufferSize(8096).get();
             wb.write(bos);
             byte[] firstSave = bos.toByteArray();
             bos.reset();
@@ -2982,7 +2982,7 @@ public final class TestXSSFBugs extends BaseTestBugzillaIssues {
 
             // we currently only populate the dimension during writing out
             // to avoid having to iterate all rows/cells in each add/remove of a row or cell
-            wb.write(NULL_OUTPUT_STREAM);
+            wb.write(NullOutputStream.INSTANCE);
 
             assertEquals("B2:H5", ((XSSFSheet) sheet).getCTWorksheet().getDimension().getRef());
         }
@@ -3003,7 +3003,7 @@ public final class TestXSSFBugs extends BaseTestBugzillaIssues {
 
             // we currently only populate the dimension during writing out
             // to avoid having to iterate all rows/cells in each add/remove of a row or cell
-            wb.write(NULL_OUTPUT_STREAM);
+            wb.write(NullOutputStream.INSTANCE);
 
             assertEquals("B2:XFD5", ((XSSFSheet) sheet).getCTWorksheet().getDimension().getRef());
         }
@@ -3691,7 +3691,7 @@ public final class TestXSSFBugs extends BaseTestBugzillaIssues {
             assertEquals(blueStyle.getIndex(), r3.getCell(4).getCellStyle().getIndex());
             assertEquals(pinkStyle.getIndex(), r3.getCell(6).getCellStyle().getIndex());
 
-            try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+            try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
                 wb.write(bos);
                 try (XSSFWorkbook wb2 = new XSSFWorkbook(bos.toInputStream())) {
                     XSSFSheet wb2Sheet = wb2.getSheetAt(0);
@@ -3778,13 +3778,13 @@ public final class TestXSSFBugs extends BaseTestBugzillaIssues {
         }
 
         // read bytes of workbook before
-        UnsynchronizedByteArrayOutputStream bosOrig = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream bosOrig = UnsynchronizedByteArrayOutputStream.builder().get();
         try (FileInputStream fis = new FileInputStream(temp_excel_poi)) {
             IOUtils.copy(fis, bosOrig);
         }
 
         // for the encrypted bytes
-        UnsynchronizedByteArrayOutputStream bosEnc = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream bosEnc = UnsynchronizedByteArrayOutputStream.builder().get();
 
         /* encrypt excel by poi */
         try (POIFSFileSystem fs = new POIFSFileSystem()) {
@@ -3810,7 +3810,7 @@ public final class TestXSSFBugs extends BaseTestBugzillaIssues {
         }
 
         // for the decrytped bytes
-        UnsynchronizedByteArrayOutputStream bosDec = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream bosDec = UnsynchronizedByteArrayOutputStream.builder().get();
 
         /* decrypt excel by poi */
         try (POIFSFileSystem fileSystem = new POIFSFileSystem(temp_excel_poi_encrypt)) {

poi-ooxml/src/test/java/org/apache/poi/xssf/usermodel/TestXSSFComment.java

@@ -311,7 +311,7 @@ public final class TestXSSFComment extends BaseTestCellComment {
 
     @Test
     void bug59388CommentVisible() throws IOException {
-        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             try (Workbook wb = XSSFTestDataSamples.openSampleWorkbook("59388.xlsx")) {
                 Sheet sheet = wb.getSheetAt(0);
                 Cell a1 = sheet.getRow(0).getCell(0);
@@ -474,7 +474,7 @@ public final class TestXSSFComment extends BaseTestCellComment {
     }
 
     private void _testMoveIsSaved(Workbook workbook) throws Exception {
-        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             CreationHelper factory = workbook.getCreationHelper();
             Sheet sheet = workbook.createSheet();
             Row row = sheet.createRow(0);
@@ -511,7 +511,7 @@ public final class TestXSSFComment extends BaseTestCellComment {
     }
 
     private void _testModificationIsSaved(Workbook workbook) throws Exception {
-        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             CreationHelper factory = workbook.getCreationHelper();
             Sheet sheet = workbook.createSheet();
             Row row = sheet.createRow(0);

poi-ooxml/src/test/java/org/apache/poi/xssf/usermodel/TestXSSFSheet.java

@@ -386,7 +386,7 @@ public final class TestXSSFSheet extends BaseTestXSheet {
     void saveGroupColumns() throws IOException {
         try (
                 XSSFWorkbook workbook = new XSSFWorkbook();
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()
+                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()
         ) {
             XSSFSheet sheet = workbook.createSheet();
             XSSFRow row0 = sheet.createRow(0);
@@ -2268,7 +2268,7 @@ public final class TestXSSFSheet extends BaseTestXSheet {
     void testBug64536() throws IOException {
         try (
                 XSSFWorkbook xssfWorkbook = (XSSFWorkbook) _testDataProvider.openSampleWorkbook("1_NoIden.xlsx");
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()
+                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()
         ) {
             XSSFSheet fileSheet = xssfWorkbook.getSheetAt(0);
             assertEquals(CellRangeAddress.valueOf("B1:D9"), fileSheet.getDimension());

poi-ooxml/src/test/java/org/apache/poi/xssf/usermodel/TestXSSFTable.java

@@ -651,7 +651,7 @@ public final class TestXSSFTable {
     void testNamesWithNewLines() throws IOException {
         try (
                 XSSFWorkbook wb = new XSSFWorkbook();
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()
+                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()
         ) {
             XSSFSheet sheet = wb.createSheet();
 
@@ -739,7 +739,7 @@ public final class TestXSSFTable {
     void bug66213() throws IOException {
         try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("table-sample.xlsx")) {
             wb.cloneSheet(0, "Test");
-            try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+            try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
                 wb.write(bos);
                 try (XSSFWorkbook wb2 = new XSSFWorkbook(bos.toInputStream())) {
                     XSSFSheet sheet0 = wb2.getSheetAt(0);
@@ -757,7 +757,7 @@ public final class TestXSSFTable {
     void testCloneConditionalFormattingSamples() throws IOException {
         try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("ConditionalFormattingSamples.xlsx")) {
             wb.cloneSheet(0, "Test");
-            try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+            try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
                 wb.write(bos);
                 try (XSSFWorkbook wb2 = new XSSFWorkbook(bos.toInputStream())) {
                     XSSFSheet sheet0 = wb2.getSheetAt(0);
@@ -773,7 +773,7 @@ public final class TestXSSFTable {
     void testCloneSingleCellTable() throws IOException {
         try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("SingleCellTable.xlsx")) {
             wb.cloneSheet(0, "Test");
-            try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+            try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
                 wb.write(bos);
                 try (XSSFWorkbook wb2 = new XSSFWorkbook(bos.toInputStream())) {
                     XSSFSheet sheet0 = wb2.getSheetAt(0);

poi-ooxml/src/test/java/org/apache/poi/xssf/usermodel/TestXSSFVMLDrawing.java

@@ -103,7 +103,7 @@ class TestXSSFVMLDrawing {
         assertEquals("[True]", cldata.getVisibleList().toString());
 
         //serialize and read again
-        UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream out = UnsynchronizedByteArrayOutputStream.builder().get();
         vml.write(out);
 
         XSSFVMLDrawing vml2 = new XSSFVMLDrawing();

poi-ooxml/src/test/java/org/apache/poi/xssf/usermodel/TestXSSFWorkbook.java

@@ -17,6 +17,7 @@
 
 package org.apache.poi.xssf.usermodel;
 
+import org.apache.commons.io.output.NullOutputStream;
 import org.apache.commons.io.output.UnsynchronizedByteArrayOutputStream;
 import org.apache.poi.POIDataSamples;
 import org.apache.poi.hssf.HSSFTestDataSamples;
@@ -80,7 +81,6 @@ import java.util.Iterator;
 import java.util.List;
 import java.util.zip.CRC32;
 
-import static org.apache.commons.io.output.NullOutputStream.NULL_OUTPUT_STREAM;
 import static org.apache.poi.hssf.HSSFTestDataSamples.openSampleFileStream;
 import static org.apache.poi.xssf.XSSFTestDataSamples.openSampleWorkbook;
 import static org.apache.poi.xssf.XSSFTestDataSamples.writeOut;
@@ -573,7 +573,7 @@ public final class TestXSSFWorkbook extends BaseTestXWorkbook {
             sheet.groupColumn((short) 4, (short) 5);
 
             accessWorkbook(workbook);
-            workbook.write(NULL_OUTPUT_STREAM);
+            workbook.write(NullOutputStream.INSTANCE);
             accessWorkbook(workbook);
         }
     }
@@ -1240,7 +1240,7 @@ public final class TestXSSFWorkbook extends BaseTestXWorkbook {
 
     @Test
     void testNewWorkbookWithTempFilePackageParts() throws Exception {
-        try(UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+        try(UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             assertFalse(ZipPackage.useTempFilePackageParts(), "useTempFilePackageParts defaults to false?");
             assertFalse(ZipPackage.encryptTempFilePackageParts(), "encryptTempFilePackageParts defaults to false?");
             ZipPackage.setUseTempFilePackageParts(true);
@@ -1264,7 +1264,7 @@ public final class TestXSSFWorkbook extends BaseTestXWorkbook {
 
     @Test
     void testNewWorkbookWithEncryptedTempFilePackageParts() throws Exception {
-        try(UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+        try(UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             assertFalse(ZipPackage.useTempFilePackageParts(), "useTempFilePackageParts defaults to false?");
             assertFalse(ZipPackage.encryptTempFilePackageParts(), "encryptTempFilePackageParts defaults to false?");
             ZipPackage.setUseTempFilePackageParts(true);
@@ -1293,8 +1293,8 @@ public final class TestXSSFWorkbook extends BaseTestXWorkbook {
         String nameA = "link-external-workbook-a.xlsx";
 
         try (
-                UnsynchronizedByteArrayOutputStream bosA = new UnsynchronizedByteArrayOutputStream();
-                UnsynchronizedByteArrayOutputStream bosB = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream bosA = UnsynchronizedByteArrayOutputStream.builder().get();
+                UnsynchronizedByteArrayOutputStream bosB = UnsynchronizedByteArrayOutputStream.builder().get();
                 XSSFWorkbook workbookA = new XSSFWorkbook();
                 XSSFWorkbook workbookB = new XSSFWorkbook()
         ) {
@@ -1343,8 +1343,8 @@ public final class TestXSSFWorkbook extends BaseTestXWorkbook {
         String nameA = "cache-external-workbook-a.xlsx";
 
         try (
-                UnsynchronizedByteArrayOutputStream bosA = new UnsynchronizedByteArrayOutputStream();
-                UnsynchronizedByteArrayOutputStream bosB = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream bosA = UnsynchronizedByteArrayOutputStream.builder().get();
+                UnsynchronizedByteArrayOutputStream bosB = UnsynchronizedByteArrayOutputStream.builder().get();
                 XSSFWorkbook workbookA = new XSSFWorkbook();
                 XSSFWorkbook workbookB = new XSSFWorkbook()
         ) {
@@ -1381,7 +1381,7 @@ public final class TestXSSFWorkbook extends BaseTestXWorkbook {
     @Test
     void checkExistingFileForR1C1Refs() throws IOException {
         try (
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get();
                 XSSFWorkbook wb = openSampleWorkbook("WithTable.xlsx")
         ) {
             assertEquals(CellReferenceType.A1, wb.getCellReferenceType());
@@ -1397,7 +1397,7 @@ public final class TestXSSFWorkbook extends BaseTestXWorkbook {
     @Test
     void checkNewFileForR1C1Refs() throws IOException {
         try (
-                UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get();
                 XSSFWorkbook wb = new XSSFWorkbook()
         ) {
             assertEquals(CellReferenceType.UNKNOWN, wb.getCellReferenceType());

poi-ooxml/src/test/java/org/apache/poi/xssf/usermodel/charts/TestXSSFBubbleChartData.java

@@ -152,7 +152,7 @@ final class TestXSSFBubbleChartData {
             setRoundedCorners(chart, false);
 
             // Write the output to a file
-            try (UnsynchronizedByteArrayOutputStream outStream = new UnsynchronizedByteArrayOutputStream()) {
+            try (UnsynchronizedByteArrayOutputStream outStream = UnsynchronizedByteArrayOutputStream.builder().get()) {
                 wb.write(outStream);
                 try (XSSFWorkbook wb2 = new XSSFWorkbook(outStream.toInputStream())) {
                     // see if this fails

poi-ooxml/src/test/java/org/apache/poi/xssf/util/TestEvilUnclosedBRFixingInputStream.java

@@ -69,7 +69,7 @@ public final class TestEvilUnclosedBRFixingInputStream {
         //  overflow or only part in the buffer
         for(int i=5; i<orig.length; i++) {
             try (EvilUnclosedBRFixingInputStream inp = new EvilUnclosedBRFixingInputStream(orig);
-                 UnsynchronizedByteArrayOutputStream bout = new UnsynchronizedByteArrayOutputStream()) {
+                 UnsynchronizedByteArrayOutputStream bout = UnsynchronizedByteArrayOutputStream.builder().get()) {
                 for (;;) {
                     byte[] b = new byte[i];
                     int r = inp.read(b);

poi-ooxml/src/test/java/org/apache/poi/xwpf/XWPFTestDataSamples.java

@@ -32,7 +32,7 @@ public class XWPFTestDataSamples {
     }
 
     public static XWPFDocument writeOutAndReadBack(XWPFDocument doc) throws IOException {
-        UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream(4096);
+        UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().setBufferSize(4096).get();
         doc.write(baos);
         return new XWPFDocument(baos.toInputStream());
     }

poi-ooxml/src/test/java/org/apache/poi/xwpf/usermodel/TestChangeTracking.java

@@ -58,7 +58,7 @@ class TestChangeTracking {
             r1.setText("Lorem ipsum dolor sit amet.");
             doc.setTrackRevisions(true);
 
-            try (UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream()) {
+            try (UnsynchronizedByteArrayOutputStream out = UnsynchronizedByteArrayOutputStream.builder().get()) {
                 doc.write(out);
 
                 try (InputStream inputStream = out.toInputStream()) {

poi-scratchpad/src/main/java/org/apache/poi/extractor/ole2/OLE2ScratchpadExtractorFactory.java

@@ -185,7 +185,12 @@ public class OLE2ScratchpadExtractorFactory implements ExtractorProvider {
             for (AttachmentChunks attachment : msg.getAttachmentFiles()) {
                 if (attachment.getAttachData() != null) {
                     byte[] data = attachment.getAttachData().getValue();
-                    nonPOIFS.add( new UnsynchronizedByteArrayInputStream(data) );
+                    try {
+                        nonPOIFS.add(UnsynchronizedByteArrayInputStream.builder().setByteArray(data).get() );
+                    } catch (IOException e) {
+                        // is actually impossible with ByteArray, but still declared in the interface
+                        throw new IllegalStateException(e);
+                    }
                 } else if (attachment.getAttachmentDirectory() != null) {
                     dirs.add(attachment.getAttachmentDirectory().getDirectory());
                 }

poi-scratchpad/src/main/java/org/apache/poi/hdgf/HDGFLZW.java

@@ -53,7 +53,7 @@ public class HDGFLZW extends LZWDecompresser {
     * @throws IOException when the InputStream can't be read
     */
    public byte[] compress(InputStream src) throws IOException {
-      UnsynchronizedByteArrayOutputStream res = new UnsynchronizedByteArrayOutputStream();
+      UnsynchronizedByteArrayOutputStream res = UnsynchronizedByteArrayOutputStream.builder().get();
       compress(src,res);
       return res.toByteArray();
    }

poi-scratchpad/src/main/java/org/apache/poi/hdgf/streams/CompressedStreamStore.java

@@ -92,7 +92,7 @@ public final class CompressedStreamStore extends StreamStore {
      * Decompresses the given data, returning it as header + contents
      */
     public static byte[][] decompress(byte[] data, int offset, int length) throws IOException {
-        try (UnsynchronizedByteArrayInputStream bais = new UnsynchronizedByteArrayInputStream(data, offset, length)) {
+        try (UnsynchronizedByteArrayInputStream bais = UnsynchronizedByteArrayInputStream.builder().setByteArray(data).setOffset(offset).setLength(length).get()) {
             // Decompress
             HDGFLZW lzw = new HDGFLZW();
             byte[] decompressed = lzw.decompress(bais);

poi-scratchpad/src/main/java/org/apache/poi/hemf/draw/HemfImageRenderer.java

@@ -65,7 +65,7 @@ public class HemfImageRenderer implements ImageRenderer, EmbeddedExtractor {
         if (!PictureData.PictureType.EMF.contentType.equals(contentType)) {
             throw new IOException("Invalid picture type");
         }
-        image = new HemfPicture(new UnsynchronizedByteArrayInputStream(data));
+        image = new HemfPicture(UnsynchronizedByteArrayInputStream.builder().setByteArray(data).get());
     }
 
     @Override

poi-scratchpad/src/main/java/org/apache/poi/hemf/record/emf/HemfFill.java

@@ -792,7 +792,7 @@ public final class HemfFill {
             return (long)undefinedSpace1 + bitmap.init(leis, dibSize);
         }
 
-        final UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream(cbBmi+cbBits);
+        final UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().setBufferSize(cbBmi+cbBits).get();
         final long cbBmiSrcAct = IOUtils.copy(leis, bos, cbBmi);
         assert (cbBmiSrcAct == cbBmi);
         leis.skipFully(undefinedSpace2);

poi-scratchpad/src/main/java/org/apache/poi/hemf/record/emfplus/HemfPlusBrush.java

@@ -396,7 +396,7 @@ public class HemfPlusBrush {
         public EmfPlusBrushData getBrushData(List<? extends EmfPlusObjectData> continuedObjectData) {
             EmfPlusBrushData brushData = brushType.constructor.get();
             byte[] buf = getRawData(continuedObjectData);
-            try (UnsynchronizedByteArrayInputStream bis = new UnsynchronizedByteArrayInputStream(buf)){
+            try (UnsynchronizedByteArrayInputStream bis = UnsynchronizedByteArrayInputStream.builder().setByteArray(buf).get()){
                 brushData.init(new LittleEndianInputStream(bis), buf.length);
             } catch (IOException e) {
                 throw new IllegalStateException(e);
@@ -410,7 +410,7 @@ public class HemfPlusBrush {
          * @throws IllegalStateException if the data cannot be processed
          */
         public byte[] getRawData(List<? extends EmfPlusObjectData> continuedObjectData) {
-            try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+            try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
                 bos.write(getBrushBytes());
                 if (continuedObjectData != null) {
                     for (EmfPlusObjectData od : continuedObjectData) {

poi-scratchpad/src/main/java/org/apache/poi/hemf/record/emfplus/HemfPlusImage.java

@@ -419,13 +419,13 @@ public class HemfPlusImage {
                         if (getBitmapType() == EmfPlusBitmapDataType.PIXEL) {
                             return new Rectangle2D.Double(0, 0, bitmapWidth, bitmapHeight);
                         } else {
-                            try(UnsynchronizedByteArrayInputStream is = new UnsynchronizedByteArrayInputStream(getRawData(continuedObjectData))) {
+                            try(UnsynchronizedByteArrayInputStream is = UnsynchronizedByteArrayInputStream.builder().setByteArray(getRawData(continuedObjectData)).get()) {
                                 BufferedImage bi = ImageIO.read(is);
                                 return new Rectangle2D.Double(bi.getMinX(), bi.getMinY(), bi.getWidth(), bi.getHeight());
                             }
                         }
                     case METAFILE:
-                        try(UnsynchronizedByteArrayInputStream bis = new UnsynchronizedByteArrayInputStream(getRawData(continuedObjectData))) {
+                        try(UnsynchronizedByteArrayInputStream bis = UnsynchronizedByteArrayInputStream.builder().setByteArray(getRawData(continuedObjectData)).get()) {
                             switch (getMetafileType()) {
                                 case Wmf:
                                 case WmfPlaceable:
@@ -453,7 +453,7 @@ public class HemfPlusImage {
          * @throws IllegalStateException if the data cannot be read
          */
         public byte[] getRawData(List<? extends EmfPlusObjectData> continuedObjectData) {
-            try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+            try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
                 bos.write(getImageData());
                 if (continuedObjectData != null) {
                     for (EmfPlusObjectData od : continuedObjectData) {

poi-scratchpad/src/main/java/org/apache/poi/hemf/usermodel/HemfEmbeddedIterator.java

@@ -293,7 +293,7 @@ public class HemfEmbeddedIterator implements Iterator<HwmfEmbedded> {
     private void compressGDIBitmap(EmfPlusImage img, HwmfEmbedded emb, HwmfEmbeddedType et) {
         BufferedImage bi = img.readGDIImage(emb.getRawData());
         try {
-            UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream();
+            UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get();
             // use HwmfEmbeddedType literal for conversion
             ImageIO.write(bi, et.toString(), bos);
             emb.setData(bos.toByteArray());
@@ -318,7 +318,7 @@ public class HemfEmbeddedIterator implements Iterator<HwmfEmbedded> {
             : epo.getTotalObjectSize();
         IOUtils.safelyAllocateCheck(totalSize, MAX_RECORD_LENGTH);
 
-        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream(totalSize)) {
+        try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().setBufferSize(totalSize).get()) {
             boolean hasNext = false;
             do {
                 EmfPlusImage img = epo.getObjectData();

poi-scratchpad/src/main/java/org/apache/poi/hmef/attribute/MAPIAttribute.java

@@ -116,7 +116,7 @@ public class MAPIAttribute {
                "instead received a " + parent.getProperty() + " one"
          );
       }
-      try(UnsynchronizedByteArrayInputStream inp = new UnsynchronizedByteArrayInputStream(parent.getData())) {
+      try(UnsynchronizedByteArrayInputStream inp = UnsynchronizedByteArrayInputStream.builder().setByteArray(parent.getData()).get()) {
          // First up, get the number of attributes
          int count = LittleEndian.readInt(inp);
          List<MAPIAttribute> attrs = new ArrayList<>();

poi-scratchpad/src/main/java/org/apache/poi/hmef/attribute/MAPIRtfAttribute.java

@@ -46,7 +46,7 @@ public final class MAPIRtfAttribute extends MAPIAttribute {
       // Decompress it, removing any trailing padding as needed
       CompressedRTF rtf = new CompressedRTF();
       byte[] tmp;
-      try (InputStream is = new UnsynchronizedByteArrayInputStream(data)) {
+      try (InputStream is = UnsynchronizedByteArrayInputStream.builder().setByteArray(data).get()) {
          tmp = rtf.decompress(is);
       }
 

poi-scratchpad/src/main/java/org/apache/poi/hpbf/model/HPBFPart.java

@@ -83,7 +83,7 @@ public abstract class HPBFPart {
         generateData();
 
         // Write out
-        try (UnsynchronizedByteArrayInputStream bais = new UnsynchronizedByteArrayInputStream(data)) {
+        try (UnsynchronizedByteArrayInputStream bais = UnsynchronizedByteArrayInputStream.builder().setByteArray(data).get()) {
             dir.createDocument(path[path.length-1], bais);
         }
     }

poi-scratchpad/src/main/java/org/apache/poi/hslf/blip/Bitmap.java

@@ -91,7 +91,7 @@ public abstract class Bitmap extends HSLFPictureData {
 
     @Override
     public Dimension getImageDimension() {
-        try (InputStream is = new UnsynchronizedByteArrayInputStream(getData())){
+        try (InputStream is = UnsynchronizedByteArrayInputStream.builder().setByteArray(getData()).get()){
             BufferedImage bi = ImageIO.read(is);
             return new Dimension(
                 (int)Units.pixelToPoints(bi.getWidth()),

poi-scratchpad/src/main/java/org/apache/poi/hslf/blip/EMF.java

@@ -69,9 +69,9 @@ public final class EMF extends Metafile {
         header.read(rawdata, CHECKSUM_SIZE);
 
         try (
-                InputStream is = new UnsynchronizedByteArrayInputStream(rawdata);
+                InputStream is = UnsynchronizedByteArrayInputStream.builder().setByteArray(rawdata).get();
                 InflaterInputStream inflater = new InflaterInputStream(is);
-                UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream()
+                UnsynchronizedByteArrayOutputStream out = UnsynchronizedByteArrayOutputStream.builder().get()
         ) {
             long len = IOUtils.skipFully(is,header.getSize() + (long)CHECKSUM_SIZE);
             assert(len == header.getSize() + CHECKSUM_SIZE);

poi-scratchpad/src/main/java/org/apache/poi/hslf/blip/Metafile.java

@@ -91,7 +91,7 @@ public abstract class Metafile extends HSLFPictureData {
         public void read(byte[] data, int offset) {
             try (
                     LittleEndianInputStream leis = new LittleEndianInputStream(
-                            new UnsynchronizedByteArrayInputStream(data, offset, RECORD_LENGTH))
+                            UnsynchronizedByteArrayInputStream.builder().setByteArray(data).setOffset(offset).setLength(RECORD_LENGTH).get())
             ) {
                 wmfsize = leis.readInt();
 
@@ -204,7 +204,7 @@ public abstract class Metafile extends HSLFPictureData {
     }
 
     protected static byte[] compress(byte[] bytes, int offset, int length) {
-        UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream out = UnsynchronizedByteArrayOutputStream.builder().get();
         try (DeflaterOutputStream deflater = new DeflaterOutputStream(out)) {
             deflater.write(bytes, offset, length);
         } catch (IOException ignored) {

poi-scratchpad/src/main/java/org/apache/poi/hslf/blip/PICT.java

@@ -72,7 +72,7 @@ public final class PICT extends Metafile {
     @Override
     public byte[] getData(){
         byte[] rawdata = getRawData();
-        try (UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream out = UnsynchronizedByteArrayOutputStream.builder().get()) {
             byte[] macheader = new byte[512];
             out.write(macheader);
             int pos = CHECKSUM_SIZE*getUIDInstanceCount();
@@ -88,13 +88,13 @@ public final class PICT extends Metafile {
         Header header = new Header();
         header.read(data, pos);
         long bs_exp = (long)pos + header.getSize();
-        try (InputStream bis = new UnsynchronizedByteArrayInputStream(data)) {
+        try (InputStream bis = UnsynchronizedByteArrayInputStream.builder().setByteArray(data).get()) {
             long bs_act = IOUtils.skipFully(bis, bs_exp);
             if (bs_exp != bs_act) {
                 throw new EOFException();
             }
             byte[] chunk = new byte[4096];
-            try (UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream(header.getWmfSize())) {
+            try (UnsynchronizedByteArrayOutputStream out = UnsynchronizedByteArrayOutputStream.builder().setBufferSize(header.getWmfSize()).get()) {
                 try (InflaterInputStream inflater = new InflaterInputStream(bis)) {
                     int count;
                     while ((count = inflater.read(chunk)) >= 0) {

poi-scratchpad/src/main/java/org/apache/poi/hslf/blip/WMF.java

@@ -65,7 +65,7 @@ public final class WMF extends Metafile {
     @Override
     public byte[] getData(){
         byte[] rawdata = getRawData();
-        try (InputStream is = new UnsynchronizedByteArrayInputStream(rawdata)) {
+        try (InputStream is = UnsynchronizedByteArrayInputStream.builder().setByteArray(rawdata).get()) {
 
 
             Header header = new Header();
@@ -75,7 +75,7 @@ public final class WMF extends Metafile {
             assert(skipped == skipLen);
 
             ImageHeaderWMF aldus = new ImageHeaderWMF(header.getBounds());
-            UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream();
+            UnsynchronizedByteArrayOutputStream out = UnsynchronizedByteArrayOutputStream.builder().get();
             aldus.write(out);
 
             try (InflaterInputStream inflater = new InflaterInputStream( is )) {

poi-scratchpad/src/main/java/org/apache/poi/hslf/dev/PPTXMLDump.java

@@ -65,7 +65,7 @@ public final class PPTXMLDump {
             return null;
         }
         try (InputStream is = dn.createDocumentInputStream(entry);
-            UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+            UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             IOUtils.copy(is, bos);
             return bos.toByteArray();
         }

poi-scratchpad/src/main/java/org/apache/poi/hslf/dev/SlideIdListing.java

@@ -147,7 +147,7 @@ public final class SlideIdListing {
                 }
 
                 // Increase the position by the on disk size
-                UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get();
                 r.writeOut(baos);
                 pos += baos.size();
             }

poi-scratchpad/src/main/java/org/apache/poi/hslf/dev/SlideShowRecordDumper.java

@@ -146,7 +146,7 @@ public final class SlideShowRecordDumper {
     public int getDiskLen(org.apache.poi.hslf.record.Record r) throws IOException {
         int diskLen = 0;
         if (r != null) {
-            UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream();
+            UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get();
             r.writeOut(baos);
             diskLen = baos.size();
         }
@@ -158,7 +158,7 @@ public final class SlideShowRecordDumper {
             return "<<null>>";
         }
 
-        UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get();
         r.writeOut(baos);
         byte[] b = baos.toByteArray();
         return HexDump.dump(b, 0, 0);
@@ -258,7 +258,7 @@ public final class SlideShowRecordDumper {
             if (optEscher && cname.equals("PPDrawing")) {
                 DefaultEscherRecordFactory factory = new HSLFEscherRecordFactory();
 
-                UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get();
                 r.writeOut(baos);
                 byte[] b = baos.toByteArray();
 

poi-scratchpad/src/main/java/org/apache/poi/hslf/dev/UserEditAndPersistListing.java

@@ -79,7 +79,7 @@ public final class UserEditAndPersistListing {
                 }
 
                 // Increase the position by the on disk size
-                UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get();
                 r.writeOut(baos);
                 pos += baos.size();
             }
@@ -99,7 +99,7 @@ public final class UserEditAndPersistListing {
                 }
 
                 // Increase the position by the on disk size
-                UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream();
+                UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get();
                 r.writeOut(baos);
                 pos += baos.size();
             }

poi-scratchpad/src/main/java/org/apache/poi/hslf/model/textproperties/TextPropCollection.java

@@ -379,7 +379,7 @@ public class TextPropCollection implements GenericRecord, Duplicatable {
         out.append("  bytes that would be written: \n");
 
         try {
-            UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream();
+            UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get();
             writeOut(baos);
             byte[] b = baos.toByteArray();
             out.append(HexDump.dump(b, 0, 0));

poi-scratchpad/src/main/java/org/apache/poi/hslf/record/ColorSchemeAtom.java

@@ -154,7 +154,7 @@ public final class ColorSchemeAtom extends RecordAtom {
         byte[] ret = new byte[3];
 
         // Serialise to bytes, then grab the right ones out
-        UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream();
+        UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get();
         try {
             writeLittleEndian(rgb,baos);
         } catch(IOException ie) {

poi-scratchpad/src/main/java/org/apache/poi/hslf/record/CurrentUserAtom.java

@@ -264,7 +264,7 @@ public class CurrentUserAtom {
      */
     public void writeToFS(POIFSFileSystem fs) throws IOException {
         // Grab contents
-        try (UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             writeOut(baos);
             try (InputStream is = baos.toInputStream()) {
                 // Write out

poi-scratchpad/src/main/java/org/apache/poi/hslf/record/EscherTextboxWrapper.java

@@ -89,7 +89,7 @@ public final class EscherTextboxWrapper extends RecordContainer {
         // Write out our children, and stuff them into the Escher layer
 
         // Grab the children's data
-        try (UnsynchronizedByteArrayOutputStream baos = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream baos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             for (org.apache.poi.hslf.record.Record r : _children) {
                 r.writeOut(baos);
             }

poi-scratchpad/src/main/java/org/apache/poi/hslf/record/ExOleObjStg.java

@@ -124,7 +124,7 @@ public class ExOleObjStg extends PositionDependentRecordAtom implements PersistR
      * @param data the embedded data.
      */
      public void setData(byte[] data) throws IOException {
-        try (UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream();
+        try (UnsynchronizedByteArrayOutputStream out = UnsynchronizedByteArrayOutputStream.builder().get();
              DeflaterOutputStream def = new DeflaterOutputStream(out)) {
             //first four bytes is the length of the raw data
             byte[] b = new byte[4];

poi-scratchpad/src/main/java/org/apache/poi/hslf/record/HSLFEscherClientDataRecord.java

@@ -93,7 +93,7 @@ public class HSLFEscherClientDataRecord extends EscherClientDataRecord {
 
     @Override
     public byte[] getRemainingData() {
-        try (UnsynchronizedByteArrayOutputStream bos = new UnsynchronizedByteArrayOutputStream()) {
+        try (UnsynchronizedByteArrayOutputStream bos = UnsynchronizedByteArrayOutputStream.builder().get()) {
             for (org.apache.poi.hslf.record.Record r : _childRecords) {
                 r.writeOut(bos);
             }