[Android] Fix the bug when full path to test apk is provided.

build/android/pylib/test_options_parser.py

 # Copyright (c) 2012 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.
 
 """Parses options for the instrumentation tests."""
 
 import constants
 import optparse
 import os
 import sys
@@ skipping 149 matching lines @@
   options.run_java_tests = True
   options.run_python_tests = True
   if options.java_only:
     options.run_python_tests = False
   elif options.python_only:
     options.run_java_tests = False
 
   if os.path.exists(options.test_apk):
     # The APK is fully qualified, assume the JAR lives along side.
     options.test_apk_path = options.test_apk
-    options.test_apk_jar_path = os.path.splitext(options.test_apk_path) + '.jar'
+    options.test_apk_jar_path = (os.path.splitext(options.test_apk_path)[0] +
+                                 '.jar')
   else:
     options.test_apk_path = os.path.join(_SDK_OUT_DIR,
                                          options.build_type,
                                          constants.SDK_BUILD_APKS_DIR,
                                          '%s.apk' % options.test_apk)
     options.test_apk_jar_path = os.path.join(
         _SDK_OUT_DIR, options.build_type, constants.SDK_BUILD_TEST_JAVALIB_DIR,
         '%s.jar' %  options.test_apk)
   if options.annotation_str:
     options.annotation = options.annotation_str.split()
   elif options.test_filter:
     options.annotation = []
   else:
     options.annotation = ['Smoke', 'SmallTest', 'MediumTest', 'LargeTest']