Make jars build from a single ant .xml template

build/java.gypi

 # 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.
 
 # This file is meant to be included into a target to provide a rule
 # to build Java in a consistent manner.
 #
 # To use this, create a gyp target with the following form:
 # {
 #   'target_name': 'my-package_java',
@@ skipping 26 matching lines @@
     'input_jars_paths': [],
     'additional_src_dirs': [],
   },
   'actions': [
     {
       'action_name': 'ant_<(package_name)',
       'message': 'Building <(package_name) java sources.',
       'inputs': [
         'android/ant/common.xml',
         'android/ant/chromium-jars.xml',
-        '<(java_in_dir)/<(package_name).xml',
         '<!@(find <(java_in_dir) -name "*.java")',
         '>@(input_jars_paths)',
       ],
       'outputs': [
         '<(PRODUCT_DIR)/lib.java/chromium_<(package_name).jar',
       ],
       'action': [
         'ant',
         '-DPRODUCT_DIR=<(ant_build_out)',
         '-DPACKAGE_NAME=<(package_name)',
+        '-DINPUT_JARS_PATHS=>(input_jars_paths)',
         '-DADDITIONAL_SRC_DIRS=>(additional_src_dirs)',
         '-DANDROID_SDK=<(android_sdk)',
         '-DANDROID_SDK_ROOT=<(android_sdk_root)',
         '-DANDROID_SDK_TOOLS=<(android_sdk_tools)',
         '-DANDROID_SDK_VERSION=<(android_sdk_version)',
         '-DANDROID_TOOLCHAIN=<(android_toolchain)',
+        '-Dbasedir=<(java_in_dir)',

[Yaron, 2012/08/09 17:49:36]

Where is this used?

         '-buildfile',
-        '<(java_in_dir)/<(package_name).xml',
+        '<(DEPTH)/build/android/ant/chromium-jars.xml'
       ]
     },
   ],
 }