I'm trying to run the verifier against a simple rule file I've created. My rules live in a directory called "rules". The rules files are directly under rules/. rules/rule1.drl rules/rule2.drl My ant target looks like: <target name="verifier" depends="compile"> <verifier srcdir="rules" tofile="${outputdir}" classpathref="classpath-compile-deploy"> <include name="*.drl" /> </verifier> </target> I'm getting this exception: java.lang.NullPointerException at java.io.Reader.<init>(Reader.java:61) at java.io.InputStreamReader.<init>(InputStreamReader.java:55) at org.drools.contrib.DroolsVerifierAntTask.compileAndAnalyzeFile(DroolsVerifierAntTask.java:125) at org.drools.contrib.DroolsVerifierAntTask.execute(DroolsVerifierAntTask.java:105) The error occurs in compileAndAnalyzeFiles: http://grepcode.com/file/repository.jboss.com/maven2/org.drools/drools-an... The line it's bombing out seems to be trying to find my rules file relative to the Verifier class: org.drools.lang.descr.PackageDescr descr = (new DrlParser()).parse(new InputStreamReader(org/drools/verifier/Verifier.getResourceAsStream(filename))); Why does it do that? Why not just read the file I specify? Do I have to muck with the classpath to get the verifier to work? Thanks, Adam -- View this message in context: http://n3.nabble.com/Problem-running-drools-verifier-ant-task-tp417853p41... Sent from the Drools - User mailing list archive at Nabble.com.