[rules-users] Getting Null pointer exception for applying change set

[Rana]

ok I have used "Classpath:" but now it is saying this.

The file is there in the specified location.



java.lang.RuntimeException: Unable to get LastModified for ClasspathResource
	at
org.drools.io.impl.ClassPathResource.getLastModified(ClassPathResource.java:179)
	at
org.drools.io.impl.ClassPathResource.getInputStream(ClassPathResource.java:140)
	at org.drools.compiler.DrlParser.parse(DrlParser.java:145)
	at org.drools.compiler.DrlParser.parse(DrlParser.java:139)
	at
org.drools.compiler.PackageBuilder.drlToPackageDescr(PackageBuilder.java:478)
	at
org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:467)
	at
org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:673)
	at
org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:45)
	at
org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:34)
	at
org.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(KnowledgeAgentImpl.java:729)
	at
org.drools.agent.impl.KnowledgeAgentImpl.incrementalBuildResources(KnowledgeAgentImpl.java:955)
	at
org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(KnowledgeAgentImpl.java:675)
	at
org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:203)
	at
org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:182)
	at
com.drfirst.pi.affiliate.drools.DroolsKnowledgeObject.getKnowledgeBase(DroolsKnowledgeObject.java:61)
	at
com.drfirst.pi.affiliate.drools.DroolsKnowledgeObject.getKnowledgeSession(DroolsKnowledgeObject.java:75)
	at com.drfirst.pi.affiliate.drools.FireRules.<clinit>(FireRules.java:27)
	at
com.drfirst.pi.affiliate.drools.test.DroolsRuleTest.test(DroolsRuleTest.java:16)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at junit.framework.TestCase.runTest(TestCase.java:168)
	at junit.framework.TestCase.runBare(TestCase.java:134)
	at junit.framework.TestResult$1.protect(TestResult.java:110)
	at junit.framework.TestResult.runProtected(TestResult.java:128)
	at junit.framework.TestResult.run(TestResult.java:113)
	at junit.framework.TestCase.run(TestCase.java:124)
	at junit.framework.TestSuite.runTest(TestSuite.java:243)
	at junit.framework.TestSuite.run(TestSuite.java:238)
	at
org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
	at
org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
	at
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
	at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
	at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
	at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: java.io.FileNotFoundException:
'/src/main/rules/sample-md/AndroGel.drl' cannot be opened because it does
not exist
	at org.drools.io.impl.ClassPathResource.getURL(ClassPathResource.java:164)
	at
org.drools.io.impl.ClassPathResource.getLastModified(ClassPathResource.java:175)
	... 36 more


Thanks.



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