diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/AbstractFetchCommand.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/AbstractFetchCommand.java
index fde0a78bf..2cee2cb00 100644
--- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/AbstractFetchCommand.java
+++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/AbstractFetchCommand.java
@@ -129,20 +129,20 @@ abstract class AbstractFetchCommand extends TextBuiltin {
 			final TrackingRefUpdate u) {
 		final RefUpdate.Result r = u.getResult();
 		if (r == RefUpdate.Result.LOCK_FAILURE)
-			return "[lock fail]";
+			return "[lock fail]"; //$NON-NLS-1$
 		if (r == RefUpdate.Result.IO_FAILURE)
-			return "[i/o error]";
+			return "[i/o error]"; //$NON-NLS-1$
 		if (r == RefUpdate.Result.REJECTED)
-			return "[rejected]";
+			return "[rejected]"; //$NON-NLS-1$
 		if (ObjectId.zeroId().equals(u.getNewObjectId()))
-			return "[deleted]";
+			return "[deleted]"; //$NON-NLS-1$
 
 		if (r == RefUpdate.Result.NEW) {
 			if (u.getRemoteName().startsWith(Constants.R_HEADS))
-				return "[new branch]";
+				return "[new branch]"; //$NON-NLS-1$
 			else if (u.getLocalName().startsWith(Constants.R_TAGS))
-				return "[new tag]";
-			return "[new]";
+				return "[new tag]"; //$NON-NLS-1$
+			return "[new]"; //$NON-NLS-1$
 		}
 
 		if (r == RefUpdate.Result.FORCED) {
@@ -158,7 +158,7 @@ abstract class AbstractFetchCommand extends TextBuiltin {
 		}
 
 		if (r == RefUpdate.Result.NO_CHANGE)
-			return "[up to date]";
+			return "[up to date]"; //$NON-NLS-1$
 		return "[" + r.name() + "]"; //$NON-NLS-1$//$NON-NLS-2$
 	}
 
diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Config.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Config.java
index 8569e9278..faae13a4d 100644
--- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Config.java
+++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Config.java
@@ -74,7 +74,7 @@ class Config extends TextBuiltin {
 			list();
 		else
 			throw new NotSupportedException(
-					"only --list option is currently supported");
+					"only --list option is currently supported"); //$NON-NLS-1$
 	}
 
 	private void list() throws IOException, ConfigInvalidException {
diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Log.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Log.java
index d43424c7c..6947cdd10 100644
--- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Log.java
+++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Log.java
@@ -324,7 +324,7 @@ class Log extends RevWalkTextBuiltin {
 			return false;
 		if (emptyLine)
 			outw.println();
-		outw.print("Notes");
+		outw.print("Notes"); //$NON-NLS-1$
 		if (label != null) {
 			outw.print(" ("); //$NON-NLS-1$
 			outw.print(label);
diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Push.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Push.java
index 9098c1263..33ea1deb8 100644
--- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Push.java
+++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Push.java
@@ -182,15 +182,15 @@ class Push extends TextBuiltin {
 		switch (rru.getStatus()) {
 		case OK:
 			if (rru.isDelete())
-				printUpdateLine('-', "[deleted]", null, remoteName, null);
+				printUpdateLine('-', "[deleted]", null, remoteName, null); //$NON-NLS-1$
 			else {
 				final Ref oldRef = result.getAdvertisedRef(remoteName);
 				if (oldRef == null) {
 					final String summary;
 					if (remoteName.startsWith(Constants.R_TAGS))
-						summary = "[new tag]";
+						summary = "[new tag]"; //$NON-NLS-1$
 					else
-						summary = "[new branch]";
+						summary = "[new branch]"; //$NON-NLS-1$
 					printUpdateLine('*', summary, srcRef, remoteName, null);
 				} else {
 					boolean fastForward = rru.isFastForward();
@@ -206,16 +206,16 @@ class Push extends TextBuiltin {
 			break;
 
 		case NON_EXISTING:
-			printUpdateLine('X', "[no match]", null, remoteName, null);
+			printUpdateLine('X', "[no match]", null, remoteName, null); //$NON-NLS-1$
 			break;
 
 		case REJECTED_NODELETE:
-			printUpdateLine('!', "[rejected]", null, remoteName,
+			printUpdateLine('!', "[rejected]", null, remoteName, //$NON-NLS-1$
 					CLIText.get().remoteSideDoesNotSupportDeletingRefs);
 			break;
 
 		case REJECTED_NONFASTFORWARD:
-			printUpdateLine('!', "[rejected]", srcRef, remoteName,
+			printUpdateLine('!', "[rejected]", srcRef, remoteName, //$NON-NLS-1$
 					CLIText.get().nonFastForward);
 			break;
 
@@ -223,22 +223,22 @@ class Push extends TextBuiltin {
 			final String message = MessageFormat.format(
 					CLIText.get().remoteRefObjectChangedIsNotExpectedOne,
 					safeAbbreviate(reader, rru.getExpectedOldObjectId()));
-			printUpdateLine('!', "[rejected]", srcRef, remoteName, message);
+			printUpdateLine('!', "[rejected]", srcRef, remoteName, message); //$NON-NLS-1$
 			break;
 
 		case REJECTED_OTHER_REASON:
-			printUpdateLine('!', "[remote rejected]", srcRef, remoteName, rru
+			printUpdateLine('!', "[remote rejected]", srcRef, remoteName, rru //$NON-NLS-1$
 					.getMessage());
 			break;
 
 		case UP_TO_DATE:
 			if (verbose)
-				printUpdateLine('=', "[up to date]", srcRef, remoteName, null);
+				printUpdateLine('=', "[up to date]", srcRef, remoteName, null); //$NON-NLS-1$
 			break;
 
 		case NOT_ATTEMPTED:
 		case AWAITING_REPORT:
-			printUpdateLine('?', "[unexpected push-process behavior]", srcRef,
+			printUpdateLine('?', "[unexpected push-process behavior]", srcRef, //$NON-NLS-1$
 					remoteName, rru.getMessage());
 			break;
 		}
diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Reset.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Reset.java
index 6ba076290..4d3af4b56 100644
--- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Reset.java
+++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Reset.java
@@ -89,7 +89,7 @@ class Reset extends TextBuiltin {
 				if (hard)
 					mode = selectMode(mode, ResetType.HARD);
 				if (mode == null)
-					throw die("no reset mode set");
+					throw die("no reset mode set"); //$NON-NLS-1$
 				command.setMode(mode);
 			}
 			command.call();
@@ -98,7 +98,7 @@ class Reset extends TextBuiltin {
 
 	private static ResetType selectMode(ResetType mode, ResetType want) {
 		if (mode != null)
-			throw die("reset modes are mutually exclusive, select one");
+			throw die("reset modes are mutually exclusive, select one"); //$NON-NLS-1$
 		return want;
 	}
 }
diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/DiffAlgorithms.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/DiffAlgorithms.java
index d85698901..c96f2c1ba 100644
--- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/DiffAlgorithms.java
+++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/DiffAlgorithms.java
@@ -136,7 +136,7 @@ class DiffAlgorithms extends TextBuiltin {
 	protected void run() throws Exception {
 		mxBean = ManagementFactory.getThreadMXBean();
 		if (!mxBean.isCurrentThreadCpuTimeSupported())
-			throw die("Current thread CPU time not supported on this JRE");
+			throw die("Current thread CPU time not supported on this JRE"); //$NON-NLS-1$
 
 		if (gitDirs.isEmpty()) {
 			RepositoryBuilder rb = new RepositoryBuilder() //
@@ -248,18 +248,18 @@ class DiffAlgorithms extends TextBuiltin {
 			File parent = directory.getParentFile();
 			if (name.equals(Constants.DOT_GIT) && parent != null)
 				name = parent.getName();
-			outw.println(name + ": start at " + startId.name());
+			outw.println(name + ": start at " + startId.name()); //$NON-NLS-1$
 		}
 
-		outw.format("  %12d files,     %8d commits\n", valueOf(files),
+		outw.format("  %12d files,     %8d commits\n", valueOf(files), //$NON-NLS-1$
 				valueOf(commits));
-		outw.format("  N=%10d min lines, %8d max lines\n", valueOf(minN),
+		outw.format("  N=%10d min lines, %8d max lines\n", valueOf(minN), //$NON-NLS-1$
 				valueOf(maxN));
 
-		outw.format("%-25s %12s ( %12s  %12s )\n", //
-				"Algorithm", "Time(ns)", "Time(ns) on", "Time(ns) on");
-		outw.format("%-25s %12s ( %12s  %12s )\n", //
-				"", "", "N=" + minN, "N=" + maxN);
+		outw.format("%-25s %12s ( %12s  %12s )\n", //$NON-NLS-1$
+				"Algorithm", "Time(ns)", "Time(ns) on", "Time(ns) on"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+		outw.format("%-25s %12s ( %12s  %12s )\n", //$NON-NLS-1$
+				"", "", "N=" + minN, "N=" + maxN); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
 		outw.println("-----------------------------------------------------" //$NON-NLS-1$
 				+ "----------------"); //$NON-NLS-1$
 
@@ -335,9 +335,9 @@ class DiffAlgorithms extends TextBuiltin {
 				}
 			}
 		} catch (IllegalArgumentException e) {
-			throw die("Cannot determine names", e);
+			throw die("Cannot determine names", e); //$NON-NLS-1$
 		} catch (IllegalAccessException e) {
-			throw die("Cannot determine names", e);
+			throw die("Cannot determine names", e); //$NON-NLS-1$
 		}
 
 		return all;
diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/RebuildCommitGraph.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/RebuildCommitGraph.java
index 6260cd99f..e2f93f481 100644
--- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/RebuildCommitGraph.java
+++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/RebuildCommitGraph.java
@@ -167,7 +167,7 @@ class RebuildCommitGraph extends TextBuiltin {
 			}
 		}
 
-		pm.beginTask("Rewriting commits", queue.size());
+		pm.beginTask("Rewriting commits", queue.size()); //$NON-NLS-1$
 		try (ObjectInserter oi = db.newObjectInserter()) {
 			final ObjectId emptyTree = oi.insert(Constants.OBJ_TREE,
 					new byte[] {});
@@ -203,7 +203,7 @@ class RebuildCommitGraph extends TextBuiltin {
 					newc.setAuthor(new PersonIdent(me, new Date(t.commitTime)));
 					newc.setCommitter(newc.getAuthor());
 					newc.setParentIds(newParents);
-					newc.setMessage("ORIGINAL " + t.oldId.name() + "\n"); //$NON-NLS-2$
+					newc.setMessage("ORIGINAL " + t.oldId.name() + "\n"); //$NON-NLS-1$ //$NON-NLS-2$
 					t.newId = oi.insert(newc);
 					rewrites.put(t.oldId, t.newId);
 					pm.update(1);
diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/ShowPackDelta.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/ShowPackDelta.java
index d3eb245cd..150fe6eec 100644
--- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/ShowPackDelta.java
+++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/ShowPackDelta.java
@@ -87,9 +87,9 @@ class ShowPackDelta extends TextBuiltin {
 		long size = reader.getObjectSize(obj, obj.getType());
 		try {
 			if (BinaryDelta.getResultSize(delta) != size)
-				throw die("Object " + obj.name() + " is not a delta");
+				throw die("Object " + obj.name() + " is not a delta"); //$NON-NLS-1$ //$NON-NLS-2$
 		} catch (ArrayIndexOutOfBoundsException bad) {
-			throw die("Object " + obj.name() + " is not a delta");
+			throw die("Object " + obj.name() + " is not a delta"); //$NON-NLS-1$ //$NON-NLS-2$
 		}
 
 		outw.println(BinaryDelta.format(delta));
diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/TextHashFunctions.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/TextHashFunctions.java
index 887ad08af..062f4e7a1 100644
--- a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/TextHashFunctions.java
+++ b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/debug/TextHashFunctions.java
@@ -349,10 +349,10 @@ class TextHashFunctions extends TextBuiltin {
 				name = parent.getName();
 			outw.println(name + ":"); //$NON-NLS-1$
 		}
-		outw.format("  %6d files; %5d avg. unique lines/file\n", //
+		outw.format("  %6d files; %5d avg. unique lines/file\n", //$NON-NLS-1$
 				valueOf(fileCnt), //
 				valueOf(lineCnt / fileCnt));
-		outw.format("%-20s %-15s %9s\n", "Hash", "Fold", "Max Len");
+		outw.format("%-20s %-15s %9s\n", "Hash", "Fold", "Max Len"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
 		outw.println("-----------------------------------------------"); //$NON-NLS-1$
 		String lastHashName = null;
 		for (Function fun : all) {
@@ -405,9 +405,9 @@ class TextHashFunctions extends TextBuiltin {
 				}
 			}
 		} catch (IllegalArgumentException e) {
-			throw new RuntimeException("Cannot determine names", e);
+			throw new RuntimeException("Cannot determine names", e); //$NON-NLS-1$
 		} catch (IllegalAccessException e) {
-			throw new RuntimeException("Cannot determine names", e);
+			throw new RuntimeException("Cannot determine names", e); //$NON-NLS-1$
 		}
 
 		List<Function> all = new ArrayList<Function>();
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/transport/URIish.java b/org.eclipse.jgit/src/org/eclipse/jgit/transport/URIish.java
index 9aeb840eb..2f9dfa1d6 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/transport/URIish.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/transport/URIish.java
@@ -715,7 +715,7 @@ public class URIish implements Serializable {
 	 */
 	public String getHumanishName() throws IllegalArgumentException {
 		String s = getPath();
-		if ("/".equals(s) || "".equals(s)) //$NON-NLS-1$
+		if ("/".equals(s) || "".equals(s)) //$NON-NLS-1$ //$NON-NLS-2$
 			s = getHost();
 		if (s == null) // $NON-NLS-1$
 			throw new IllegalArgumentException();