Sonar fixes

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1874530 13f79535-47bb-0310-9956-ffa450edef68

src/examples/src/org/apache/poi/ss/examples/html/excelStyle.css

@@ -32,7 +32,6 @@
 	word-spacing: 0;
 	white-space: pre-wrap;
 	unicode-bidi: normal;
-	vertical-align: 0;
 	background-image: none;
 	text-shadow: none;
 	list-style-image: none;

src/java/org/apache/poi/hpsf/ClassIDPredefined.java

@@ -147,6 +147,7 @@ public enum ClassIDPredefined {
         return (classID == null) ? null : LOOKUP.get(classID.toString());
     }
 
+    @SuppressWarnings("java:S1201")
     public boolean equals(ClassID classID) {
         return getClassID().equals(classID);
     }

src/java/org/apache/poi/hssf/usermodel/HSSFCellStyle.java

@@ -119,12 +119,7 @@ public final class HSSFCellStyle implements CellStyle, Duplicatable {
     // we keep the cached data in ThreadLocal members in order to
     // avoid multi-threading issues when different workbooks are accessed in
     // multiple threads at the same time
-    private static final ThreadLocal<Short> lastDateFormat = new ThreadLocal<Short>() {
-        @Override
-        protected Short initialValue() {
-            return Short.MIN_VALUE;
-        }
-    };
+    private static final ThreadLocal<Short> lastDateFormat = ThreadLocal.withInitial(() -> Short.MIN_VALUE);
     private static final ThreadLocal<List<FormatRecord>> lastFormats = new ThreadLocal<>();
     private static final ThreadLocal<String> getDataFormatStringCache = new ThreadLocal<>();
 

src/java/org/apache/poi/util/IntList.java

@@ -284,8 +284,8 @@ public class IntList
         if (o == this) {
             return true;
         }
-        
-        if (o.getClass()!=this.getClass()) {
+
+        if (!(o instanceof IntList)) {
             return false;
         }
 
@@ -294,13 +294,13 @@ public class IntList
         if (other._limit != _limit) {
             return false;
         }
-        
+
         for (int i=0; i< _limit; i++) {
             if (other._array[i] != _array[i]) {
                 return false;
             }
         }
-        
+
         return true;
     }
 

src/ooxml/java/org/apache/poi/openxml4j/opc/internal/PackagePropertiesPart.java

@@ -26,6 +26,8 @@ import java.util.Locale;
 import java.util.Optional;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
 import org.apache.poi.openxml4j.exceptions.InvalidOperationException;
@@ -675,41 +677,35 @@ public final class PackagePropertiesPart extends PackagePart implements PackageP
         }
 
         Matcher m = TIME_ZONE_PAT.matcher(dateStr);
+        Date d = null;
         if (m.find()) {
-            String dateTzStr = dateStr.substring(0, m.start())+
-                    m.group(1)+m.group(2);
-            for (String fStr : TZ_DATE_FORMATS) {
-                SimpleDateFormat df = new SimpleDateFormat(fStr, Locale.ROOT);
-                df.setTimeZone(LocaleUtil.TIMEZONE_UTC);
-                Date d = df.parse(dateTzStr, new ParsePosition(0));
-                if (d != null) {
-                    return Optional.of(d);
-                }
-            }
+            String dateTzStr = dateStr.substring(0, m.start())+m.group(1)+m.group(2);
+            d = parseDateFormat(TZ_DATE_FORMATS, dateTzStr);
         }
-        String dateTzStr = dateStr.endsWith("Z") ? dateStr : (dateStr + "Z");
-        for (String fStr : DATE_FORMATS) {
+        if (d == null) {
+            String dateTzStr = dateStr.endsWith("Z") ? dateStr : (dateStr + "Z");
+            d = parseDateFormat(DATE_FORMATS, dateTzStr);
+        }
+        if (d != null) {
+            return Optional.of(d);
+        }
+
+        //if you're here, no pattern matched, throw exception
+        String allFormats = Stream.of(TZ_DATE_FORMATS, DATE_FORMATS)
+            .flatMap(Stream::of).collect(Collectors.joining(", "));
+        throw new InvalidFormatException("Date " + dateStr + " not well formatted, expected format in: "+ allFormats);
+    }
+
+    private static Date parseDateFormat(String[] formats, String dateTzStr) {
+        for (String fStr : formats) {
             SimpleDateFormat df = new SimpleDateFormat(fStr, Locale.ROOT);
             df.setTimeZone(LocaleUtil.TIMEZONE_UTC);
             Date d = df.parse(dateTzStr, new ParsePosition(0));
             if (d != null) {
-                return Optional.of(d);
+                return d;
             }
         }
-        //if you're here, no pattern matched, throw exception
-        StringBuilder sb = new StringBuilder();
-        int i = 0;
-        for (String fStr : TZ_DATE_FORMATS) {
-            if (i++ > 0) {
-                sb.append(", ");
-            }
-            sb.append(fStr);
-        }
-        for (String fStr : DATE_FORMATS) {
-            sb.append(", ").append(fStr);
-        }
-        throw new InvalidFormatException("Date " + dateStr + " not well formatted, "
-                + "expected format in: "+ sb);
+        return null;
     }
 
     /**
@@ -720,13 +716,14 @@ public final class PackagePropertiesPart extends PackagePart implements PackageP
      * @return The formated date or null.
      * @see java.text.SimpleDateFormat
      */
-    private String getDateValue(Optional<Date> d) {
-        if (d == null || !d.isPresent()) {
-            return "";
-        }
+    private static String getDateValue(Optional<Date> d) {
+        return d.map(PackagePropertiesPart::getDateValue).orElse("");
+    }
+
+    private static String getDateValue(Date d) {
         SimpleDateFormat df = new SimpleDateFormat(DEFAULT_DATEFORMAT, Locale.ROOT);
         df.setTimeZone(LocaleUtil.TIMEZONE_UTC);
-        return df.format(d.get());
+        return df.format(d);
     }
 
     @Override