Bug 996560

Description of problem:

I tried to create my own web application with kie-spring integration but during deployment it throws following exception:

Caused by: java.lang.IllegalArgumentException: Could not find a KModule (defaultClasspathKContainer is null). 
	at org.kie.spring.KieObjectsResolver.resolveKContainer(KieObjectsResolver.java:76) [kie-spring-6.1.0-SNAPSHOT.jar:6.1.0-SNAPSHOT]
	at org.kie.spring.KieObjectsResolver.resolveKBase(KieObjectsResolver.java:50) [kie-spring-6.1.0-SNAPSHOT.jar:6.1.0-SNAPSHOT]

The reason is on line 46 here https://github.com/droolsjbpm/droolsjbpm-integration/blob/master/kie-spring/src/main/java/org/kie/spring/KieObjectsResolver.java#L46 , the defaultClasspathKContainer inicialization code is commented.

However this fix is not enough to deploy the app.

The next exception I receive is:

Caused by: java.lang.NullPointerException
	at org.drools.compiler.kie.builder.impl.KieContainerImpl.createKieBase(KieContainerImpl.java:199) [drools-compiler-6.0.0-SNAPSHOT.jar:6.0.0-SNAPSHOT]
	at org.drools.compiler.kie.builder.impl.KieContainerImpl.getKieBase(KieContainerImpl.java:167) [drools-compiler-6.0.0-SNAPSHOT.jar:6.0.0-SNAPSHOT]
	at org.kie.spring.KieObjectsResolver.resolveKBase(KieObjectsResolver.java:51) [kie-spring-6.0.0-SNAPSHOT.jar:6.0.0-SNAPSHOT]

I think that the kBaseModel is null on line 199 in the KieContainerImpl https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/main/java/org/drools/compiler/kie/builder/impl/KieContainerImpl.java#L199

The spring context is created by default in the web application by org.springframework.web.context.ContextLoaderListener, so there is no initialization of post processor beans such as KModuleBeanFactoryPostProcessor. So it uses the default container.

Version-Release number of selected component (if applicable):


How reproducible:

Steps to Reproduce:
1. Clone https://github.com/ibek/droolsjbpm-integration/tree/6.0.x/
2. Build drools-camel-server-example
3. Run Tests
4. See following exception:

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'ksession1': Cannot resolve reference to bean 'kbase1' while setting bean property 'kBase'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'kbase1': Invocation of init method failed; nested exception is java.lang.NullPointerException
	at org.drools.compiler.kie.builder.impl.KieContainerImpl.createKieBase(KieContainerImpl.java:199)

FYI tests in kie-spring works just because they use different way how to create spring context. So, you can try that it works when you uncomment lines in CxfRSClientServerTest like below:

//ReleaseId releaseId = new ReleaseIdImpl("sample-group","test-spring","001");
//URL configFileURL = CxfRsClientServerTest.class.getResource("/beans.xml");
//ApplicationContext springContext = InternalKieSpringUtils.getSpringContext(releaseId,configFileURL);

Actual results:


Expected results:


Additional info: