s/StringBuffer/StringBuilder as appropriate where no concurrency is needed

org.eclipse.jgit/src/org/eclipse/jgit/lib/Config.java

 	private static String escapeValue(final String x) {
 		boolean inquote = false;
 		int lineStart = 0;
-		final StringBuffer r = new StringBuffer(x.length());
+		final StringBuilder r = new StringBuilder(x.length());
 		for (int k = 0; k < x.length(); k++) {
 			final char c = x.charAt(k);
 			switch (c) {
 
 	private static String readKeyName(final StringReader in)
 			throws ConfigInvalidException {
-		final StringBuffer name = new StringBuffer();
+		final StringBuilder name = new StringBuilder();
 		for (;;) {
 			int c = in.read();
 			if (c < 0)
 
 	private static String readValue(final StringReader in, boolean quote,
 			final int eol) throws ConfigInvalidException {
-		final StringBuffer value = new StringBuffer();
+		final StringBuilder value = new StringBuilder();
 		boolean space = false;
 		for (;;) {
 			int c = in.read();

org.eclipse.jgit/src/org/eclipse/jgit/lib/FileTreeEntry.java

 	}
 
 	public String toString() {
-		final StringBuffer r = new StringBuffer();
+		final StringBuilder r = new StringBuilder();
 		r.append(ObjectId.toString(getId()));
 		r.append(' ');
 		r.append(isExecutable() ? 'X' : 'F');

org.eclipse.jgit/src/org/eclipse/jgit/lib/GitlinkTreeEntry.java

 
 	@Override
 	public String toString() {
-		final StringBuffer r = new StringBuffer();
+		final StringBuilder r = new StringBuilder();
 		r.append(ObjectId.toString(getId()));
 		r.append(" G ");
 		r.append(getFullName());

org.eclipse.jgit/src/org/eclipse/jgit/lib/PersonIdent.java

 	 * @return this person's declared time zone; null if time zone is unknown.
 	 */
 	public TimeZone getTimeZone() {
-		StringBuffer tzId = new StringBuffer(8);
+		StringBuilder tzId = new StringBuilder(8);
 		tzId.append("GMT");
 		appendTimezone(tzId);
 		return TimeZone.getTimeZone(tzId.toString());
 	 * @return a string in the git author format
 	 */
 	public String toExternalString() {
-		final StringBuffer r = new StringBuffer();
+		final StringBuilder r = new StringBuilder();
 		r.append(getName());
 		r.append(" <");
 		r.append(getEmailAddress());
 		return r.toString();
 	}
 
-	private void appendTimezone(final StringBuffer r) {
+	private void appendTimezone(final StringBuilder r) {
 		int offset = tzOffset;
 		final char sign;
 		final int offsetHours;
 	}
 
 	public String toString() {
-		final StringBuffer r = new StringBuffer();
+		final StringBuilder r = new StringBuilder();
 		final SimpleDateFormat dtfmt;
 		dtfmt = new SimpleDateFormat("EEE MMM d HH:mm:ss yyyy Z", Locale.US);
 		dtfmt.setTimeZone(getTimeZone());

org.eclipse.jgit/src/org/eclipse/jgit/lib/SymlinkTreeEntry.java

 	}
 
 	public String toString() {
-		final StringBuffer r = new StringBuffer();
+		final StringBuilder r = new StringBuilder();
 		r.append(ObjectId.toString(getId()));
 		r.append(" S ");
 		r.append(getFullName());

org.eclipse.jgit/src/org/eclipse/jgit/lib/Tag.java

 						throw new CorruptObjectException(tagId, "no tagger/bad header");
 
 				// Message should start with an empty line, but
-				StringBuffer tempMessage = new StringBuffer();
+				StringBuilder tempMessage = new StringBuilder();
 				char[] readBuf = new char[2048];
 				int readLen;
 				while ((readLen = br.read(readBuf)) > 0) {

org.eclipse.jgit/src/org/eclipse/jgit/lib/Tree.java

 	}
 
 	public String toString() {
-		final StringBuffer r = new StringBuffer();
+		final StringBuilder r = new StringBuilder();
 		r.append(ObjectId.toString(getId()));
 		r.append(" T ");
 		r.append(getFullName());

org.eclipse.jgit/src/org/eclipse/jgit/lib/TreeEntry.java

 	 * @return repository relative name of this entry
 	 */
 	public String getFullName() {
-		final StringBuffer r = new StringBuffer();
+		final StringBuilder r = new StringBuilder();
 		appendFullName(r);
 		return r.toString();
 	}
 	 */
 	public abstract FileMode getMode();
 
-	private void appendFullName(final StringBuffer r) {
+	private void appendFullName(final StringBuilder r) {
 		final TreeEntry p = getParent();
 		final String n = getName();
 		if (p != null) {

org.eclipse.jgit/src/org/eclipse/jgit/revwalk/filter/AndRevFilter.java

 
 		@Override
 		public String toString() {
-			final StringBuffer r = new StringBuffer();
+			final StringBuilder r = new StringBuilder();
 			r.append("(");
 			for (int i = 0; i < subfilters.length; i++) {
 				if (i > 0)

org.eclipse.jgit/src/org/eclipse/jgit/revwalk/filter/OrRevFilter.java

 
 		@Override
 		public String toString() {
-			final StringBuffer r = new StringBuffer();
+			final StringBuilder r = new StringBuilder();
 			r.append("(");
 			for (int i = 0; i < subfilters.length; i++) {
 				if (i > 0)

org.eclipse.jgit/src/org/eclipse/jgit/treewalk/filter/AndTreeFilter.java

 
 		@Override
 		public String toString() {
-			final StringBuffer r = new StringBuffer();
+			final StringBuilder r = new StringBuilder();
 			r.append("(");
 			for (int i = 0; i < subfilters.length; i++) {
 				if (i > 0)

org.eclipse.jgit/src/org/eclipse/jgit/treewalk/filter/OrTreeFilter.java

 
 		@Override
 		public String toString() {
-			final StringBuffer r = new StringBuffer();
+			final StringBuilder r = new StringBuilder();
 			r.append("(");
 			for (int i = 0; i < subfilters.length; i++) {
 				if (i > 0)

org.eclipse.jgit/src/org/eclipse/jgit/treewalk/filter/PathFilterGroup.java

 		}
 
 		public String toString() {
-			final StringBuffer r = new StringBuffer();
+			final StringBuilder r = new StringBuilder();
 			r.append("FAST(");
 			for (int i = 0; i < paths.length; i++) {
 				if (i > 0)