Fix a regex in javac.py.

build/android/gyp/javac.py

 #!/usr/bin/env python
 #
 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import optparse
 import os
 import shutil
 import re
@@ skipping 65 matching lines @@
   # 2. A single .java file results in multiple .class files when it contains
   #    nested classes.
   # Here's an example:
   #   source path: ../../base/android/java/src/org/chromium/Foo.java
   #   jar paths: org/chromium/Foo.class, org/chromium/Foo$Inner.class
   # To extract only .class files not related to the given .java files, we strip
   # off ".class" and "$*.class" and use a substring match against java_files.
   def extract_predicate(path):
     if not path.endswith('.class'):
       return False
-    path_without_suffix = re.sub(r'(?:\$|\.)[^/]+class$', '', path)
+    path_without_suffix = re.sub(r'(?:\$|\.)[^/]*class$', '', path)
     partial_java_path = path_without_suffix + '.java'
     return not any(p.endswith(partial_java_path) for p in java_files)
 
   build_utils.ExtractAll(jar_path, path=dest_dir, predicate=extract_predicate)
   for path in build_utils.FindInDirectory(dest_dir, '*.class'):
     shutil.copystat(jar_path, path)
 
 
 def _ConvertToJMakeArgs(javac_cmd, pdb_path):
   new_args = ['bin/jmake', '-pdb', pdb_path]
@@ skipping 311 matching lines @@
       options,
       input_paths=input_paths,
       input_strings=javac_cmd,
       output_paths=output_paths,
       force=force,
       pass_changes=True)
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))