Merge branch 'stable-5.1'

* stable-5.1:
  Fix NoSuchFileException during directory cleanup in RefDirectory
  Update japicmp to 0.13.0
  Prepare 5.1.1-SNAPSHOT builds
  JGit v5.1.0.201809111528-r
  Externalize warning message in RefDirectory.delete()
  Suppress warning for trying to delete non-empty directory
  Fix replacement quoting for replaceAll in filter command
  Prepare 4.11.3-SNAPSHOT builds
  JGit v4.11.2.201809100523-r

Change-Id: Ia27fec6dabf87db26e2fd29c17570932649e234a
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit/.settings/.api_filters

@@ -1,18 +1,10 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <component id="org.eclipse.jgit" version="2">
-    <resource path="META-INF/MANIFEST.MF">
-        <filter id="924844039">
-            <message_arguments>
-                <message_argument value="5.1.0"/>
-                <message_argument value="5.1.0"/>
-            </message_arguments>
-        </filter>
-    </resource>
     <resource path="src/org/eclipse/jgit/util/FS.java" type="org.eclipse.jgit.util.FS">
         <filter id="1141899266">
             <message_arguments>
                 <message_argument value="4.7"/>
-                <message_argument value="5.1"/>
+                <message_argument value="5.2"/>
                 <message_argument value="createNewFileAtomic(File)"/>
             </message_arguments>
         </filter>
@@ -21,7 +13,7 @@
         <filter id="1141899266">
             <message_arguments>
                 <message_argument value="4.7"/>
-                <message_argument value="5.1"/>
+                <message_argument value="5.2"/>
                 <message_argument value="LockToken"/>
             </message_arguments>
         </filter>

org.eclipse.jgit/src/org/eclipse/jgit/treewalk/TreeWalk.java

@@ -50,6 +50,7 @@ import java.io.IOException;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Set;
+import java.util.regex.Matcher;
 
 import org.eclipse.jgit.annotations.Nullable;
 import org.eclipse.jgit.api.errors.JGitInternalException;
@@ -1438,7 +1439,8 @@ public class TreeWalk implements AutoCloseable, AttributesProvider {
 			return null;
 		}
 		return filterCommand.replaceAll("%f", //$NON-NLS-1$
-				QuotedString.BOURNE.quote((getPathString())));
+				Matcher.quoteReplacement(
+						QuotedString.BOURNE.quote((getPathString()))));
 	}
 
 	/**

pom.xml

@@ -208,7 +208,7 @@
     <osgi-core-version>4.3.1</osgi-core-version>
     <servlet-api-version>3.1.0</servlet-api-version>
     <jetty-version>9.4.11.v20180605</jetty-version>
-    <japicmp-version>0.12.0</japicmp-version>
+    <japicmp-version>0.13.0</japicmp-version>
     <httpclient-version>4.5.5</httpclient-version>
     <httpcore-version>4.4.9</httpcore-version>
     <slf4j-version>1.7.2</slf4j-version>