SpotBugs: don't rely on default encoding

Change-Id: Ic42f30c564270230fc629a917be85194d27d0338
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit.pgm.test/src/org/eclipse/jgit/pgm/CLIGitCommand.java

@@ -42,11 +42,13 @@
  */
 package org.eclipse.jgit.pgm;
 
+import static java.nio.charset.StandardCharsets.UTF_8;
 import static org.junit.Assert.assertNull;
 
 import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.IOException;
+import java.io.OutputStreamWriter;
 import java.io.PrintWriter;
 import java.util.ArrayList;
 import java.util.List;
@@ -153,7 +155,8 @@ private static String[] convertToMainArgs(String str)
 
 	@Override
 	PrintWriter createErrorWriter() {
-		return new PrintWriter(result.err);
+		return new PrintWriter(new OutputStreamWriter(
+				result.err, UTF_8));
 	}
 
 	@Override
@@ -249,19 +252,19 @@ public byte[] errBytes() {
 		}
 
 		public String outString() {
-			return out.toString();
+			return new String(out.toByteArray(), UTF_8);
 		}
 
 		public List<String> outLines() {
-			return IO.readLines(out.toString());
+			return IO.readLines(outString());
 		}
 
 		public String errString() {
-			return err.toString();
+			return new String(err.toByteArray(), UTF_8);
 		}
 
 		public List<String> errLines() {
-			return IO.readLines(err.toString());
+			return IO.readLines(errString());
 		}
 	}
 

org.eclipse.jgit/src/org/eclipse/jgit/api/ApplyCommand.java

@@ -42,11 +42,14 @@
  */
 package org.eclipse.jgit.api;
 
+import static java.nio.charset.StandardCharsets.UTF_8;
+
 import java.io.File;
 import java.io.FileOutputStream;
-import java.io.FileWriter;
 import java.io.IOException;
 import java.io.InputStream;
+import java.io.OutputStreamWriter;
+import java.io.Writer;
 import java.nio.file.StandardCopyOption;
 import java.text.MessageFormat;
 import java.util.ArrayList;
@@ -258,7 +261,8 @@ private void apply(File f, FileHeader fh)
 		if (sb.length() > 0) {
 			sb.deleteCharAt(sb.length() - 1);
 		}
-		try (FileWriter fw = new FileWriter(f)) {
+		try (Writer fw = new OutputStreamWriter(new FileOutputStream(f),
+				UTF_8)) {
 			fw.write(sb.toString());
 		}
 

org.eclipse.jgit/src/org/eclipse/jgit/dircache/DirCacheIterator.java

@@ -44,6 +44,8 @@
 
 package org.eclipse.jgit.dircache;
 
+import static java.nio.charset.StandardCharsets.UTF_8;
+
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.Collections;
@@ -75,7 +77,7 @@
 public class DirCacheIterator extends AbstractTreeIterator {
 	/** Byte array holding ".gitattributes" string */
 	private static final byte[] DOT_GIT_ATTRIBUTES_BYTES = Constants.DOT_GIT_ATTRIBUTES
-			.getBytes();
+			.getBytes(UTF_8);
 
 	/** The cache this iterator was created to walk. */
 	protected final DirCache cache;

org.eclipse.jgit/src/org/eclipse/jgit/transport/AmazonS3.java

@@ -542,7 +542,7 @@ IOException error(final String action, final String key,
 			}
 			buf = b.toByteArray();
 			if (buf.length > 0) {
-				err.initCause(new IOException("\n" + new String(buf))); //$NON-NLS-1$
+				err.initCause(new IOException("\n" + new String(buf, UTF_8))); //$NON-NLS-1$
 			}
 		}
 		return err;

org.eclipse.jgit/src/org/eclipse/jgit/transport/FetchProcess.java

@@ -44,6 +44,7 @@
 
 package org.eclipse.jgit.transport;
 
+import static java.nio.charset.StandardCharsets.UTF_8;
 import static org.eclipse.jgit.transport.ReceiveCommand.Result.NOT_ATTEMPTED;
 import static org.eclipse.jgit.transport.ReceiveCommand.Result.OK;
 import static org.eclipse.jgit.transport.ReceiveCommand.Result.REJECTED_NONFASTFORWARD;
@@ -337,7 +338,7 @@ private void updateFETCH_HEAD(FetchResult result) throws IOException {
 		try {
 			if (lock.lock()) {
 				try (Writer w = new OutputStreamWriter(
-						lock.getOutputStream())) {
+						lock.getOutputStream(), UTF_8)) {
 					for (FetchHeadRecord h : fetchHeadUpdates) {
 						h.write(w);
 						result.add(h);

org.eclipse.jgit/src/org/eclipse/jgit/transport/NetRC.java

@@ -42,10 +42,13 @@
 
 package org.eclipse.jgit.transport;
 
+import static java.nio.charset.StandardCharsets.UTF_8;
+
 import java.io.BufferedReader;
 import java.io.File;
-import java.io.FileReader;
+import java.io.FileInputStream;
 import java.io.IOException;
+import java.io.InputStreamReader;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.Locale;
@@ -211,7 +214,8 @@ private void parse() {
 		this.hosts.clear();
 		this.lastModified = this.netrc.lastModified();
 
-		try (BufferedReader r = new BufferedReader(new FileReader(netrc))) {
+		try (BufferedReader r = new BufferedReader(
+				new InputStreamReader(new FileInputStream(netrc), UTF_8))) {
 			String line = null;
 
 			NetRCEntry entry = new NetRCEntry();