10:59 p.m.
Hello,
I'm trying to play around with Drool 6.0.1 integration with Spring (I'm
using spring-boot which includes spring 4.0). I've looked at the unit
tests written and have copied them pretty much exactly. When I start the
app, I consistently receive:
Caused by: org.springframework.beans.BeanInstantiationException: Could not
instantiate bean class [org.kie.spring.KModuleBeanFactoryPostProcessor]:
Constructor threw exception; nested exception is
java.lang.NullPointerException
at
org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:164)
at
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:89)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1069)
... 22 more
Caused by: java.lang.NullPointerException
at
org.kie.spring.KModuleBeanFactoryPostProcessor.initConfigFilePath(KModuleBeanFactoryPostProcessor.java:79)
at
org.kie.spring.KModuleBeanFactoryPostProcessor.<init>(KModuleBeanFactoryPostProcessor.java:64)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at
org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:148)
When debugging the NPE comes from line 79,
getClass().getResource("/").getPath(), because getResource yields null.
Here is my spring context file:
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:kie="http://drools.org/schema/kie-spring"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://drools.org/schema/kie-spring http://drools.org/schema/kie-spring.xsd
">
<kie:kmodule id="kmodule">
<kie:kbase name="kbase1" packages="rules.drools">
<kie:ksession name="ksession">
<kie:consoleLogger/>
</kie:ksession>
</kie:kbase>
</kie:kmodule>
<bean id="kiePostProcessor"
class="org.kie.spring.KModuleBeanFactoryPostProcessor"/>
</beans>
Can someone help out?
Thanks!!
4:50 p.m.
Andrew,
I am able to reproduce the NPE with spring-boot and Spring 4.0. I am running
some tests locally to isolate the exact cause.
--Vinod
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6:47 p.m.
Andrew,
1. The NPE happens when you execute a spring-boot project via a jar (e.g:
java -jar target/kie-spring-boot-0.1.0.jar)
If you execute the same project using 'mvn exec:java' the NPE is not seen
and we are able to move forward.
2. However, Spring Boot/Spring 4.0 seems to be creating some beans with no
names. This causes a NPE with kie-spring in a different location. I have
fixed this and submitted a PR for the changes. This might be available in
the next release. Try running this example with the latest snapshot in a day
or two.
I have uploaded my code to to github
(https://github.com/vinodkiran/kie-spring-boot)
--Vinod
PS: the reported NPE seems to be related to
https://github.com/spring-projects/spring-boot/pull/41
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6:35 p.m.
Hi Vinod,
Thanks for looking into this. Can you tell me what you changed to get this
to work? Do you have a patch?
Thanks!
On Sun, Jan 26, 2014 at 9:47 AM, vinodkiran <vinodkiran(a)usa.net> wrote:
Andrew,
1. The NPE happens when you execute a spring-boot project via a jar (e.g:
java -jar target/kie-spring-boot-0.1.0.jar)
If you execute the same project using 'mvn exec:java' the NPE is not seen
and we are able to move forward.
2. However, Spring Boot/Spring 4.0 seems to be creating some beans with no
names. This causes a NPE with kie-spring in a different location. I have
fixed this and submitted a PR for the changes. This might be available in
the next release. Try running this example with the latest snapshot in a
day
or two.
I have uploaded my code to to github
(https://github.com/vinodkiran/kie-spring-boot)
--Vinod
PS: the reported NPE seems to be related to
https://github.com/spring-projects/spring-boot/pull/41
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2:16 a.m.
https://github.com/droolsjbpm/droolsjbpm-integration/pull/80
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2:40 a.m.
Awesome, thanks!!
On Mon, Jan 27, 2014 at 5:16 PM, vinodkiran <vinodkiran(a)usa.net> wrote:
https://github.com/droolsjbpm/droolsjbpm-integration/pull/80
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6:57 a.m.
Andrew,
The fix has been merged to the master. Can you try the latest snapshot build
and check if your issue is fixed?
--Vinod
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3:34 p.m.
I am getting this error.
Using kie-spring-6.0.1.Final.jar
spring-webmvc-4.0.0.RELEASE.jar
drools-core-6.0.1.Final.jar
Can you please help?
[3/21/14 10:16:11:264 EDT] 0000009f DispatcherSer I
org.springframework.web.servlet.FrameworkServlet initServletBean
FrameworkServlet 'spring': initialization started
[3/21/14 10:16:11:265 EDT] 0000009f DispatcherSer E
org.springframework.web.servlet.FrameworkServlet initServletBean Context
initialization failed
java.lang.NullPointerException
at java.io.File.<init>(File.java:233)
at
org.drools.compiler.kie.builder.impl.ClasspathKieProject.getPomProperties(ClasspathKieProject.java:228)
at
org.kie.spring.KModuleBeanFactoryPostProcessor.postProcessBeanFactory(KModuleBeanFactoryPostProcessor.java:95)
at
org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:265)
at
org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:177)
at
org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:609)
at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
at
org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:381)
at
org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:293)
at
org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
at
com.ibm.ws.webcontainer.webapp.WebApp.notifyServletContextCreated(WebApp.java:1680)
at
com.ibm.ws.webcontainer.webapp.WebAppImpl.initialize(WebAppImpl.java:410)
at
com.ibm.ws.webcontainer.webapp.WebGroupImpl.addWebApplication(WebGroupImpl.java:88)
at
com.ibm.ws.webcontainer.VirtualHostImpl.addWebApplication(VirtualHostImpl.java:169)
at
com.ibm.ws.webcontainer.WSWebContainer.addWebApp(WSWebContainer.java:746)
at
com.ibm.ws.webcontainer.WSWebContainer.addWebApplication(WSWebContainer.java:634)
at
com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:422)
at
com.ibm.ws.webcontainer.component.WebContainerImpl.start(WebContainerImpl.java:714)
at
com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:1160)
at
com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:1369)
at
com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:639)
at
com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:967)
at
com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:766)
at
com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplicationDynamically(ApplicationMgrImpl.java:1354)
at
com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:2150)
at
com.ibm.ws.runtime.component.CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:445)
at
com.ibm.ws.runtime.component.CompositionUnitImpl.start(CompositionUnitImpl.java:123)
at
com.ibm.ws.runtime.component.CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:388)
at
com.ibm.ws.runtime.component.CompositionUnitMgrImpl.access$500(CompositionUnitMgrImpl.java:116)
at
com.ibm.ws.runtime.component.CompositionUnitMgrImpl$1.run(CompositionUnitMgrImpl.java:663)
at
com.ibm.ws.security.auth.ContextManagerImpl.runAs(ContextManagerImpl.java:5363)
at
com.ibm.ws.security.auth.ContextManagerImpl.runAsSystem(ContextManagerImpl.java:5579)
at
com.ibm.ws.security.core.SecurityContext.runAsSystem(SecurityContext.java:255)
at
com.ibm.ws.runtime.component.CompositionUnitMgrImpl.startCompositionUnit(CompositionUnitMgrImpl.java:677)
at
com.ibm.ws.runtime.component.CompositionUnitMgrImpl.startCompositionUnit(CompositionUnitMgrImpl.java:621)
at
com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:1246)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
at java.lang.reflect.Method.invoke(Method.java:611)
at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:49)
at sun.reflect.GeneratedMethodAccessor11.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
at java.lang.reflect.Method.invoke(Method.java:611)
at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:256)
at
javax.management.modelmbean.RequiredModelMBean.invokeMethod(RequiredModelMBean.java:1085)
at
javax.management.modelmbean.RequiredModelMBean.invoke(RequiredModelMBean.java:966)
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:848)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:773)
at com.ibm.ws.management.AdminServiceImpl$1.run(AdminServiceImpl.java:1335)
at
com.ibm.ws.security.util.AccessController.doPrivileged(AccessController.java:118)
at
com.ibm.ws.management.AdminServiceImpl.invoke(AdminServiceImpl.java:1228)
at
com.ibm.ws.management.application.AppManagementImpl._startApplication(AppManagementImpl.java:1481)
at
com.ibm.ws.management.application.AppManagementImpl.startApplication(AppManagementImpl.java:1370)
at
com.ibm.ws.management.application.AppManagementImpl.startApplication(AppManagementImpl.java:1319)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
at java.lang.reflect.Method.invoke(Method.java:611)
at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:49)
at sun.reflect.GeneratedMethodAccessor11.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
at java.lang.reflect.Method.invoke(Method.java:611)
at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:256)
at
javax.management.modelmbean.RequiredModelMBean.invokeMethod(RequiredModelMBean.java:1085)
at
javax.management.modelmbean.RequiredModelMBean.invoke(RequiredModelMBean.java:966)
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:848)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:773)
at com.ibm.ws.management.AdminServiceImpl$1.run(AdminServiceImpl.java:1335)
at
com.ibm.ws.security.util.AccessController.doPrivileged(AccessController.java:118)
at
com.ibm.ws.management.AdminServiceImpl.invoke(AdminServiceImpl.java:1228)
at
com.ibm.ws.management.connector.AdminServiceDelegator.invoke(AdminServiceDelegator.java:181)
at
com.ibm.ws.management.connector.ipc.CallRouter.route(CallRouter.java:247)
at
com.ibm.ws.management.connector.ipc.IPCConnectorInboundLink.doWork(IPCConnectorInboundLink.java:360)
at
com.ibm.ws.management.connector.ipc.IPCConnectorInboundLink$IPCConnectorReadCallback.complete(IPCConnectorInboundLink.java:602)
at
com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165)
at
com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
at
com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)
at
com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1690)
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days old
7 comments
3 participants
participants (3)
-
alanvarghese -
Andrew Berman -
vinodkiran