diff --git a/solr/CHANGES.txt b/solr/CHANGES.txt
index 8ed90d9b454..655cd8bb454 100644
--- a/solr/CHANGES.txt
+++ b/solr/CHANGES.txt
@@ -258,9 +258,13 @@ Other Changes
 
 * SOLR-3602: Update ZooKeeper to 3.4.5 (Mark Miller)
 
-* SOLR-4095 DIH NumberFormatTransformer & DateFormatTransformer default to the
+* SOLR-4095: DIH NumberFormatTransformer & DateFormatTransformer default to the
   ROOT Locale if none is specified.  These previously used the machine's default.
   (James Dyer)
+  
+* SOLR-4096: DIH FileDataSource & FieldReaderDataSource default to UTF-8 encoding
+  if none is specified.  These previously used the machine's default.
+  (James Dyer) 
 
 ==================  4.0.0 ==================
 
diff --git a/solr/contrib/dataimporthandler/src/java/org/apache/solr/handler/dataimport/FieldReaderDataSource.java b/solr/contrib/dataimporthandler/src/java/org/apache/solr/handler/dataimport/FieldReaderDataSource.java
index bbe9bdcb8d9..3ba608c4990 100644
--- a/solr/contrib/dataimporthandler/src/java/org/apache/solr/handler/dataimport/FieldReaderDataSource.java
+++ b/solr/contrib/dataimporthandler/src/java/org/apache/solr/handler/dataimport/FieldReaderDataSource.java
@@ -106,7 +106,7 @@ public class FieldReaderDataSource extends DataSource<Reader> {
   private Reader getReader(Blob blob)
           throws SQLException, UnsupportedEncodingException {
     if (encoding == null) {
-      return (new InputStreamReader(blob.getBinaryStream()));
+      return (new InputStreamReader(blob.getBinaryStream(), "UTF-8"));
     } else {
       return (new InputStreamReader(blob.getBinaryStream(), encoding));
     }
diff --git a/solr/contrib/dataimporthandler/src/java/org/apache/solr/handler/dataimport/FileDataSource.java b/solr/contrib/dataimporthandler/src/java/org/apache/solr/handler/dataimport/FileDataSource.java
index a15346935a5..d9892186bb0 100644
--- a/solr/contrib/dataimporthandler/src/java/org/apache/solr/handler/dataimport/FileDataSource.java
+++ b/solr/contrib/dataimporthandler/src/java/org/apache/solr/handler/dataimport/FileDataSource.java
@@ -125,7 +125,7 @@ public class FileDataSource extends DataSource<Reader> {
   protected Reader openStream(File file) throws FileNotFoundException,
           UnsupportedEncodingException {
     if (encoding == null) {
-      return new InputStreamReader(new FileInputStream(file));
+      return new InputStreamReader(new FileInputStream(file), "UTF-8");
     } else {
       return new InputStreamReader(new FileInputStream(file), encoding);
     }
diff --git a/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/TestFileListEntityProcessor.java b/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/TestFileListEntityProcessor.java
index 51cc9457b3b..3efd942b9cb 100644
--- a/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/TestFileListEntityProcessor.java
+++ b/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/TestFileListEntityProcessor.java
@@ -41,9 +41,9 @@ public class TestFileListEntityProcessor extends AbstractDataImportHandlerTestCa
     tmpdir.delete();
     tmpdir.mkdir();
     tmpdir.deleteOnExit();
-    createFile(tmpdir, "a.xml", "a.xml".getBytes(), false);
-    createFile(tmpdir, "b.xml", "b.xml".getBytes(), false);
-    createFile(tmpdir, "c.props", "c.props".getBytes(), false);
+    createFile(tmpdir, "a.xml", "a.xml".getBytes("UTF-8"), false);
+    createFile(tmpdir, "b.xml", "b.xml".getBytes("UTF-8"), false);
+    createFile(tmpdir, "c.props", "c.props".getBytes("UTF-8"), false);
     Map attrs = createMap(
             FileListEntityProcessor.FILE_NAME, "xml$",
             FileListEntityProcessor.BASE_DIR, tmpdir.getAbsolutePath());
@@ -138,9 +138,9 @@ public class TestFileListEntityProcessor extends AbstractDataImportHandlerTestCa
     tmpdir.delete();
     tmpdir.mkdir();
     tmpdir.deleteOnExit();
-    createFile(tmpdir, "a.xml", "a.xml".getBytes(), true);
-    createFile(tmpdir, "b.xml", "b.xml".getBytes(), true);
-    createFile(tmpdir, "c.props", "c.props".getBytes(), true);
+    createFile(tmpdir, "a.xml", "a.xml".getBytes("UTF-8"), true);
+    createFile(tmpdir, "b.xml", "b.xml".getBytes("UTF-8"), true);
+    createFile(tmpdir, "c.props", "c.props".getBytes("UTF-8"), true);
     Map attrs = createMap(
             FileListEntityProcessor.FILE_NAME, "xml$",
             FileListEntityProcessor.BASE_DIR, tmpdir.getAbsolutePath(),
@@ -162,7 +162,7 @@ public class TestFileListEntityProcessor extends AbstractDataImportHandlerTestCa
     VariableResolver resolver = new VariableResolver();
     String lastMod = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.ROOT).format(new Date(System.currentTimeMillis() - 50000));
     resolver.addNamespace("a", createMap("x", lastMod));
-    createFile(tmpdir, "t.xml", "t.xml".getBytes(), false);
+    createFile(tmpdir, "t.xml", "t.xml".getBytes("UTF-8"), false);
     fList = getFiles(resolver, attrs);
     assertEquals(1, fList.size());
     assertEquals("File name must be t.xml", new File(tmpdir, "t.xml").getAbsolutePath(), fList.get(0));
@@ -177,9 +177,9 @@ public class TestFileListEntityProcessor extends AbstractDataImportHandlerTestCa
     File childdir = new File(tmpdir + "/child" );
     childdir.mkdirs();
     childdir.deleteOnExit();
-    createFile(childdir, "a.xml", "a.xml".getBytes(), true);
-    createFile(childdir, "b.xml", "b.xml".getBytes(), true);
-    createFile(childdir, "c.props", "c.props".getBytes(), true);
+    createFile(childdir, "a.xml", "a.xml".getBytes("UTF-8"), true);
+    createFile(childdir, "b.xml", "b.xml".getBytes("UTF-8"), true);
+    createFile(childdir, "c.props", "c.props".getBytes("UTF-8"), true);
     Map attrs = createMap(
             FileListEntityProcessor.FILE_NAME, "^.*\\.xml$",
             FileListEntityProcessor.BASE_DIR, childdir.getAbsolutePath(),
diff --git a/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/TestFileListWithLineEntityProcessor.java b/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/TestFileListWithLineEntityProcessor.java
index 6800ba83e4a..31e9216367a 100644
--- a/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/TestFileListWithLineEntityProcessor.java
+++ b/solr/contrib/dataimporthandler/src/test/org/apache/solr/handler/dataimport/TestFileListWithLineEntityProcessor.java
@@ -33,9 +33,9 @@ public class TestFileListWithLineEntityProcessor extends AbstractDataImportHandl
     tmpdir.delete();
     tmpdir.mkdir();
     tmpdir.deleteOnExit();
-    createFile(tmpdir, "a.txt", "a line one\na line two\na line three".getBytes(), false);
-    createFile(tmpdir, "b.txt", "b line one\nb line two".getBytes(), false);
-    createFile(tmpdir, "c.txt", "c line one\nc line two\nc line three\nc line four".getBytes(), false);
+    createFile(tmpdir, "a.txt", "a line one\na line two\na line three".getBytes("UTF-8"), false);
+    createFile(tmpdir, "b.txt", "b line one\nb line two".getBytes("UTF-8"), false);
+    createFile(tmpdir, "c.txt", "c line one\nc line two\nc line three\nc line four".getBytes("UTF-8"), false);
     
     String config = generateConfig(tmpdir);
     LocalSolrQueryRequest request = lrf.makeRequest(