Hi friend need an urgent help (jdk jdk1.8.0_151 and drools 5.0.1)

[Shailesh Singh]

I have just updated my JDK 7 to 8 that lead me to this situation.

logs

2017-10-25 12:36:30 [Level: ERROR]Context initialization failed

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'reportKnowledgeService' defined in URL [jar:file:/D:/apache-tomcat-7.0.64/webapps/admin/WEB-INF/lib/report-generator-1.0.jar!/META-INF/spring/beans.xml]: Unsatisfied dependency expressed through constructor argument with index 0 of type [org.drools.KnowledgeBase]: : Error creating bean with name 'knowledgeBase' defined in URL [jar:file:/D:/apache-tomcat-7.0.64/webapps/admin/WEB-INF/lib/report-rulesmodule-1.0.jar!/META-INF/spring/beans.xml]: Invocation of init method failed; nested exception is java.lang.RuntimeException: wrong class format; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'knowledgeBase' defined in URL [jar:file:/D:/apache-tomcat-7.0.64/webapps/admin/WEB-INF/lib/report-rulesmodule-1.0.jar!/META-INF/spring/beans.xml]: Invocation of init method failed; nested exception is java.lang.RuntimeException: wrong class format

at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:747)

at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:185)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1114)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1017)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)

at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)

at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:703)

at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)

at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)

at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)

at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)

at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5003)

at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5517)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)

at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)

at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)

at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)

at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1095)

at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1930)

at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)

at java.util.concurrent.FutureTask.run(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'knowledgeBase' defined in URL [jar:file:/D:/apache-tomcat-7.0.64/webapps/admin/WEB-INF/lib/report-rulesmodule-1.0.jar!/META-INF/spring/beans.xml]: Invocation of init method failed; nested exception is java.lang.RuntimeException: wrong class format

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1553)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)

at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)

at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1017)

at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:960)

at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:858)

at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:811)

at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:739)

... 28 more

Caused by: java.lang.RuntimeException: wrong class format

at org.drools.commons.jci.compilers.EclipseJavaCompiler$2.findType(EclipseJavaCompiler.java:260)

at org.drools.commons.jci.compilers.EclipseJavaCompiler$2.findType(EclipseJavaCompiler.java:204)

at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType(LookupEnvironment.java:97)

at org.eclipse.jdt.internal.compiler.lookup.UnresolvedReferenceBinding.resolve(UnresolvedReferenceBinding.java:49)

at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.resolveType(BinaryTypeBinding.java:101)

at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.getTypeFromTypeSignature(LookupEnvironment.java:1264)

at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.getTypeFromVariantTypeSignature(LookupEnvironment.java:1316)

at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.getTypeArgumentsFromSignature(LookupEnvironment.java:1107)

at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.getTypeFromTypeSignature(LookupEnvironment.java:1269)

at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.createFields(BinaryTypeBinding.java:356)

at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.cachePartsFrom(BinaryTypeBinding.java:332)

at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.createBinaryTypeFrom(LookupEnvironment.java:719)

at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.createBinaryTypeFrom(LookupEnvironment.java:699)

at org.eclipse.jdt.internal.compiler.Compiler.accept(Compiler.java:294)

at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType(LookupEnvironment.java:102)

at org.eclipse.jdt.internal.compiler.lookup.UnresolvedReferenceBinding.resolve(UnresolvedReferenceBinding.java:49)

at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.resolveType(BinaryTypeBinding.java:101)

at org.eclipse.jdt.internal.compiler.lookup.ParameterizedTypeBinding.resolve(ParameterizedTypeBinding.java:835)

at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.resolveType(BinaryTypeBinding.java:117)

at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.resolveTypesFor(BinaryTypeBinding.java:916)

at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.getExactMethod(BinaryTypeBinding.java:715)

at org.eclipse.jdt.internal.compiler.lookup.Scope.findExactMethod(Scope.java:771)

at org.eclipse.jdt.internal.compiler.lookup.Scope.getMethod(Scope.java:2106)

at org.eclipse.jdt.internal.compiler.ast.MessageSend.resolveType(MessageSend.java:432)

at org.eclipse.jdt.internal.compiler.ast.MessageSend.resolveType(MessageSend.java:344)

at org.eclipse.jdt.internal.compiler.ast.Expression.resolve(Expression.java:882)

at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolveStatements(AbstractMethodDeclaration.java:444)

at org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.resolveStatements(MethodDeclaration.java:191)

at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolve(AbstractMethodDeclaration.java:403)

at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1096)

at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1184)

at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.resolve(CompilationUnitDeclaration.java:535)

at org.eclipse.jdt.internal.compiler.Compiler.process(Compiler.java:743)

at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:444)

at org.drools.commons.jci.compilers.EclipseJavaCompiler.compile(EclipseJavaCompiler.java:351)

at org.drools.commons.jci.compilers.AbstractJavaCompiler.compile(AbstractJavaCompiler.java:51)

at org.drools.rule.builder.dialect.java.JavaDialect.compileAll(JavaDialect.java:389)

at org.drools.compiler.DialectCompiletimeRegistry.compileAll(DialectCompiletimeRegistry.java:56)

at org.drools.compiler.PackageRegistry.compileAll(PackageRegistry.java:74)

at org.drools.compiler.PackageBuilder.compileAll(PackageBuilder.java:690)

at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:653)

at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:290)

at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:488)

at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:25)

at org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(KnowledgeAgentImpl.java:386)

at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:120)

at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:109)

at com.fe.rulesmodule.factory.KnowledgeBaseBeanFactory.afterPropertiesSet(KnowledgeBaseBeanFactory.java:51)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1612)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1549)

... 39 more

Caused by: org.eclipse.jdt.internal.compiler.classfmt.ClassFormatException

at org.eclipse.jdt.internal.compiler.classfmt.ClassFileReader.<init>(ClassFileReader.java:369)

at org.drools.commons.jci.compilers.EclipseJavaCompiler$2.findType(EclipseJavaCompiler.java:254)

... 88 more

[Ramesh C]

Hi,

Drools works at JDK 7.

it is the recommended version for drools 6 or lesser.

Ramesh

[Shailesh Singh]

Yes, it works smoothly with 1.7 but the problem is with 1.8 I have to upgrade due to new developments in the product which strictly require java 8.