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

build/android/ant/apk-package-resources.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 53 matching lines @@
            or "<file>" to match only files. Default is to match both.
          - Match is not case-sensitive.
   -->
   <property name="aapt.ignore.assets" value="" />
 
   <!--
       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=""/>
 
   <property name="build.packaging.nocrunch" value="true" />
 
   <!-- Intermediate files -->
   <property name="resource.package.file.name" value="${APK_NAME}.ap_" />
 
   <target name="-crunch">
     <!-- Updates the pre-processed PNG cache -->
     <exec executable="${aapt}" taskName="crunch">
       <arg value="crunch" />
@@ skipping 27 matching lines @@
         ignoreAssets="${aapt.ignore.assets}">
       <res path="${out.res.absolute.dir}" />
       <res path="${resource.absolute.dir}" />
       <!-- <nocompress /> forces no compression on any files in assets or res/raw -->
       <!-- <nocompress extension="xml" /> forces no compression on specific file extensions in assets and res/raw -->
     </aapt>
 
     <touch file="${STAMP}" />
   </target>
 </project>