Hi! When building HotSpot in OpenJDK with CACAO I get this NPE: /home/twisti/tmp/cacao/bin/java -classpath /home/twisti/cacao/sun/openjdk/jdk/control/build/linux-amd64-debug/hotspot/outputdir/linux_amd64_compiler2/jvmg/../generated/jvmtifiles jvmtiGen -IN /home/twisti/cacao/sun/openjdk/jdk/hotspot/src/share/vm/prims/jvmti.xml -XSL /home/twisti/cacao/sun/openjdk/jdk/hotspot/src/share/vm/prims/jvmtiEnter.xsl -OUT /home/twisti/cacao/sun/openjdk/jdk/control/build/linux-amd64-debug/hotspot/outputdir/linux_amd64_compiler2/jvmg/../generated/jvmtifiles/jvmtiEnter.cpp -PARAM interface jvmti Exception in thread "main" java.lang.NullPointerException at gnu.xml.transform.WithParam.getValue(WithParam.java:89) at gnu.xml.transform.ApplyTemplatesNode.doApply(ApplyTemplatesNode.java:112) at gnu.xml.transform.TemplateNode.apply(TemplateNode.java:79) at gnu.xml.transform.TextNode.doApply(TextNode.java:102) <snip> Does anyone know what the problem is? - twisti