test/tools/jar/index/MetaInf.java

@@ -60,12 +60,18 @@
         }
     }
 
     static boolean contains(File jarFile, String entryName)
         throws IOException {
-        return new ZipFile(jarFile).getEntry(entryName) != null;
+        ZipFile zf = new ZipFile(jarFile);
+        if ( zf != null ) {
+            boolean result = zf.getEntry(entryName) != null;
+            zf.close();
+            return result;
     }
+        return false;
+    }
 
     static void checkContains(File jarFile, String entryName)
         throws IOException {
         if (! contains(jarFile, entryName))
             throw new Error(String.format("expected jar %s to contain %s",

@@ -92,13 +98,17 @@
                     new InputStreamReader(
                             f.getInputStream(f.getJarEntry(INDEX))));
         String line;
         while ((line = index.readLine()) != null) {
             if (line.equals(SERVICES)) {
+                index.close();
+                f.close();
                 return;
             }
         }
+        index.close();
+        f.close();
         throw new Error(SERVICES + " not indexed.");
     }
 
     public static void main(String[] args) throws IOException {
         testIndex("a.jar");             // a path with parent == null