The build.xml file is configured with <condition> <or> <equals arg1="${ant.java.version}" arg2="1.4"/> <equals arg1="${ant.java.version}" arg2="1.5"/> </or> </condition> Running this under Java6 causes a failure for jaxp.
Created attachment 20969 [details] fix build.xml to use a match instead of equals allows slide to be compiled on java6 jdks