Merge branch 'stable-6.3'

* stable-6.3:
  Remove unused imports
  Suppress non-externalized String warnings
  Remove unused API problem filters
  Silence API errors
  Silence API errors
  Silence API warnings

Change-Id: I6778c8266bc7e918c943dcabf23aa230f4e998d5

org.eclipse.jgit.benchmarks/src/org/eclipse/jgit/benchmarks/GetRefsBenchmark.java

@@ -9,6 +9,8 @@
  */
 package org.eclipse.jgit.benchmarks;
 
+import static org.eclipse.jgit.transport.ReceiveCommand.Type.CREATE;
+
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
@@ -23,7 +25,14 @@
 import org.eclipse.jgit.api.Git;
 import org.eclipse.jgit.api.errors.GitAPIException;
 import org.eclipse.jgit.internal.storage.file.FileRepository;
-import org.eclipse.jgit.lib.*;
+import org.eclipse.jgit.lib.BatchRefUpdate;
+import org.eclipse.jgit.lib.ConfigConstants;
+import org.eclipse.jgit.lib.Constants;
+import org.eclipse.jgit.lib.ObjectId;
+import org.eclipse.jgit.lib.Repository;
+import org.eclipse.jgit.lib.RepositoryCache;
+import org.eclipse.jgit.lib.StoredConfig;
+import org.eclipse.jgit.lib.TextProgressMonitor;
 import org.eclipse.jgit.revwalk.RevCommit;
 import org.eclipse.jgit.revwalk.RevWalk;
 import org.eclipse.jgit.transport.ReceiveCommand;
@@ -46,8 +55,6 @@
 import org.openjdk.jmh.runner.options.Options;
 import org.openjdk.jmh.runner.options.OptionsBuilder;
 
-import static org.eclipse.jgit.transport.ReceiveCommand.Type.CREATE;
-
 @State(Scope.Thread)
 public class GetRefsBenchmark {
 

org.eclipse.jgit.benchmarks/src/org/eclipse/jgit/benchmarks/LookupFileStoreBenchmark.java

@@ -24,7 +24,6 @@
 import org.openjdk.jmh.annotations.Setup;
 import org.openjdk.jmh.annotations.State;
 import org.openjdk.jmh.annotations.TearDown;
-import org.openjdk.jmh.profile.StackProfiler;
 import org.openjdk.jmh.runner.Runner;
 import org.openjdk.jmh.runner.RunnerException;
 import org.openjdk.jmh.runner.options.Options;

org.eclipse.jgit.http.server/.settings/.api_filters

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<component id="org.eclipse.jgit.http.server" version="2">
-    <resource path="src/org/eclipse/jgit/http/server/UploadPackErrorHandler.java" type="org.eclipse.jgit.http.server.UploadPackErrorHandler">
-        <filter id="1210056707">
-            <message_arguments>
-                <message_argument value="6.1.1"/>
-                <message_argument value="statusCodeForThrowable(Throwable)"/>
-            </message_arguments>
-        </filter>
-    </resource>
-</component>

org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/LocalDiskRepositoryTestCase.java

@@ -87,6 +87,8 @@ public abstract class LocalDiskRepositoryTestCase {
 
 	/**
 	 * The current test name.
+	 *
+	 * @since 6.0.1
 	 */
 	@Rule
 	public TestName currentTest = new TestName();

org.eclipse.jgit/src/org/eclipse/jgit/errors/NoRemoteRepositoryException.java

@@ -39,7 +39,7 @@ public NoRemoteRepositoryException(URIish uri, String s) {
 	 *            message
 	 * @param cause
 	 *            root cause exception
-	 * @since 5.13
+	 * @since 5.13.1
 	 */
 	public NoRemoteRepositoryException(URIish uri, String s, Throwable cause) {
 		super(uri, s, cause);

org.eclipse.jgit/src/org/eclipse/jgit/transport/AwsRequestSignerV4.java

@@ -40,7 +40,7 @@
  *      "https://docs.aws.amazon.com/general/latest/gr/signature-version-4.html">AWS
  *      Signature Version 4</a>
  *
- * @since 5.13
+ * @since 5.13.1
  */
 public final class AwsRequestSignerV4 {
 

org.eclipse.jgit/src/org/eclipse/jgit/util/HttpSupport.java

@@ -196,7 +196,7 @@ public static void encode(StringBuilder urlstr, String key) {
 	 *            them to "%2F").
 	 *
 	 * @return The translated URL.
-	 * @since 5.13
+	 * @since 5.13.1
 	 */
 	public static String urlEncode(String url, boolean keepPathSlash) {
 		String encoded;

org.eclipse.jgit/src/org/eclipse/jgit/util/sha1/SHA1.java

@@ -27,6 +27,8 @@
 public abstract class SHA1 {
 	/**
 	 * SHA1 implementations available in JGit
+	 *
+	 * @since 5.13.2
 	 */
 	public enum Sha1Implementation {
 		/**