Change javascript string replace in ant files to pure ant using a filterchain with replacestring

build/android/ant/apk-codegen.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <!--
     Copyright (C) 2005-2008 The Android Open Source Project
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at
 
          http://www.apache.org/licenses/LICENSE-2.0
 
@@ skipping 25 matching lines @@
   </path>
 
   <!-- Custom tasks -->
   <taskdef resource="anttasks.properties" classpathref="android.antlibs" />
 
   <!--
     Include additional resource folders in the apk, e.g. content/.../res.  We
     list the res folders in project.library.res.folder.path and the
     corresponding java packages in project.library.packages, which must be
     semicolon-delimited while ADDITIONAL_RES_PACKAGES is space-delimited, hence
-    the javascript task.
+    the replacestring filterchain task.
   -->
   <path id="project.library.res.folder.path">
     <filelist files="${ADDITIONAL_RES_DIRS}"/>
   </path>
   <path id="project.library.bin.r.file.path">
     <filelist files="${ADDITIONAL_R_TEXT_FILES}"/>
   </path>
-  <script language="javascript">
-    var before = project.getProperty("ADDITIONAL_RES_PACKAGES");
-    project.setProperty("project.library.packages", before.replaceAll(" ", ";"));
-  </script>
+
+  <loadresource property="project.library.packages">
+    <propertyresource name="ADDITIONAL_RES_PACKAGES"/>
+    <filterchain>
+      <replacestring from=" " to=";"/>
+    </filterchain>
+  </loadresource>
+  <!-- Set to empty if not set by the loadresource above -->
+  <property name="project.library.packages" value=""/>
 
   <path id="project.library.manifest.file.path">
     <filelist files="${LIBRARY_MANIFEST_PATHS}"/>
   </path>
 
   <!-- manifest merger default value -->
   <condition property="manifestmerger.enabled"
       value="false"
       else="true">
     <equals arg1="${LIBRARY_MANIFEST_PATHS}" arg2="" />
@@ skipping 37 matching lines @@
               ignoreAssets="${aapt.ignore.assets}"
               binFolder="${out.absolute.dir}"
               proguardFile="${out.absolute.dir}/proguard.txt">
           <res path="${out.res.absolute.dir}" />
           <res path="${resource.absolute.dir}" />
       </aapt>
 
       <touch file="${STAMP}" />
   </target>
 </project>