As an update, I changed JAVA_HOME to 1.5.0 (it was 1.6 earlier). I keep getting the same error. File is being recognised RuleAgent(rules) INFO (Wed Apr 15 09:26:08 EDT 2009): Configuring with newInstance=false, secondsToRefresh=30 RuleAgent(rules) INFO (Wed Apr 15 09:26:08 EDT 2009): Configuring package provider : DirectoryScanner scanning dir: antBuild found 1 file(s). Any pointers to what I should be doing? ________________________________ From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Bhamidi, Krishna Sent: Tuesday, April 14, 2009 2:28 PM To: &#39;rules-users(a)lists.jboss.org&#39; Subject: [rules-users] ANT Compile issues Hi, I am using DROOLs 5.0.0 CR1 and use the compiler from Drools-Ant. When I attempt to execute the rules using a rule agent, I get an exception that in part reads java.lang.NullPointerException at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1820) (Full stack follows this e-mail.) However, when I download the pkg file for the same ruleset from Guvnor and use it in the rule agent, it runs fine. I use the following for building - <taskdef name="compiler" classname="org.drools.contrib.DroolsCompilerAntTask" classpathref="compiler.classpath" /> <compiler srcdir="../${rulesDirectory}" tofile="../${buildDirectory}/${projectName}_rules.pkg" classpath="../${buildDirectory}/${projectName}_rules.jar" binformat="package"> <include name="*.drl" /> <include name="*.brl" /> <include name="*.xml" /> <include name="*.dslr" /> <include name="*.xls" /> </compiler> What I should do to compile correctly? Full Stack java.lang.NullPointerException at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1820) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348) at org.drools.rule.DialectRuntimeRegistry.readExternal(DialectRuntimeRegistry.java:41) at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1755) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1717) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348) at org.drools.rule.Package.readExternal(Package.java:197) at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1755) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1717) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348) at org.drools.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:189) at org.drools.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:158) at org.drools.agent.FileScanner.readPackage(FileScanner.java:136) at org.drools.agent.FileScanner.getChangeSet(FileScanner.java:82) at org.drools.agent.FileScanner.loadPackageChanges(FileScanner.java:56) at org.drools.agent.DirectoryScanner.loadPackageChanges(DirectoryScanner.java:69) at org.drools.agent.RuleAgent.checkForChanges(RuleAgent.java:410) at org.drools.agent.RuleAgent.refreshRuleBase(RuleAgent.java:362) at org.drools.agent.RuleAgent.configure(RuleAgent.java:347) at org.drools.agent.RuleAgent.init(RuleAgent.java:247) at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:187) at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:147)

Bhamidi, Krishna wrote: I've got the same problem using the ant-builder in drools 5.1M1. A drools.package files contains all imports an definitions of globals, but is loaded only after some .drl files who depend on the imports in the drools.package file. ==> Build failed. Is there a way to force the compilation order? Evert -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/ANT-Compile-issues-tp... Sent from the Drools - User mailing list archive at Nabble.com.