test/hotspot/jtreg/testlibrary/ctw/src/sun/hotspot/tools/ctw/Utils.java

rev 47464 : 8186618: [TESTBUG] Test applications/ctw/Modules.java doesn't have timeout and hang on windows
Reviewed-by: duke

@@ -191,14 +191,15 @@
      * Tests if the filename is valid filename for class file.
      *
      * @param filename tested filename
      */
     public static boolean isClassFile(String filename) {
-        // If the filename has a period after removing '.class', it's not valid class file
         return endsWithIgnoreCase(filename, CLASSFILE_EXT)
-                && (filename.indexOf('.')
-                == (filename.length() - CLASSFILE_EXT.length()));
+                // skip all module-info.class files
+                && !(filename.substring(filename.lastIndexOf('/') + 1,
+                                        filename.lastIndexOf('.'))
+                             .equals("module-info"));
     }
 
     /**
      * Converts the filename to classname.
      *