Sync bndlib code

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1381708 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/bundleplugin/src/main/java/aQute/bnd/osgi/Jar.java b/bundleplugin/src/main/java/aQute/bnd/osgi/Jar.java
index 93c55a1..9ee4048 100755
--- a/bundleplugin/src/main/java/aQute/bnd/osgi/Jar.java
+++ b/bundleplugin/src/main/java/aQute/bnd/osgi/Jar.java
@@ -515,6 +515,8 @@
 			return;
 		try {
 			createDirectories(directories, jout, path);
+			if (path.endsWith(Constants.EMPTY_HEADER))
+				return;
 			ZipEntry ze = new ZipEntry(path);
 			ze.setMethod(ZipEntry.DEFLATED);
 			long lastModified = resource.lastModified();