--- old/src/java.base/share/classes/com/sun/java/util/jar/pack/PackerImpl.java	2016-12-15 09:19:04.793571856 +0000
+++ new/src/java.base/share/classes/com/sun/java/util/jar/pack/PackerImpl.java	2016-12-15 09:19:04.664563031 +0000
@@ -317,7 +317,7 @@
                 this(null, je);
             }
             boolean isClassFile() {
-                if (!name.endsWith(".class")) {
+                if (!name.endsWith(".class") || name.endsWith("module-info.class")) {
                     return false;
                 }
                 for (String prefix = name;;) {