--- old/src/java.base/share/classes/jdk/internal/jmod/JmodFile.java	2017-02-07 13:13:40.069700466 +0000
+++ new/src/java.base/share/classes/jdk/internal/jmod/JmodFile.java	2017-02-07 13:13:39.900688860 +0000
@@ -186,7 +186,7 @@
     public Entry getEntry(Section section, String name) {
         String entry = section.jmodDir() + "/" + name;
         ZipEntry ze = zipfile.getEntry(entry);
-        return (ze != null) ? new Entry(ze) : null;
+        return (ze == null || ze.isDirectory()) ? null : new Entry(ze);
     }
 
     /**
@@ -201,7 +201,7 @@
     {
         String entry = section.jmodDir() + "/" + name;
         ZipEntry e = zipfile.getEntry(entry);
-        if (e == null) {
+        if (e == null || e.isDirectory()) {
             throw new IOException(name + " not found: " + file);
         }
         return zipfile.getInputStream(e);