automate building of test project for JDT wala tests

com.ibm.wala.cast.java.test.data/build.xml

@@ -48,6 +48,25 @@
   
   <target name="getSources" depends="fetchJLex" />
 
+  <target name="testdatadir" depends="init,testdata.exists" unless="testdatadir.present">
+    <mkdir dir="${basedir}/../com.ibm.wala.cast.java.test/testdata"/>
+  </target>
+
+  <target name="testdata.exists" depends="init">
+    <available file="${basedir}/../com.ibm.wala.cast.java.test/testdata" 
+	       type="dir" 
+	       property="testdatadir.present"/>
+  </target>
+
+  <target name="compile" depends="getSources">
+    <javac srcdir="${basedir}/src"
+	   destdir="${basedir}/bin"
+	   excludes="**/Activator.java"/>
+  </target>
+  
+  <target name="jar" depends="compile,testdatadir">
+    <jar destfile="${basedir}/../com.ibm.wala.cast.java.test/testdata/test_project.zip" basedir="${basedir}"/>
+  </target>
   
   <target name="init" depends="properties">
     <condition property="pluginTemp" value="${buildTempFolder}/plugins">