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https://issues.apache.org/jira/browse/SCB-737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16644689#comment-16644689
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ASF GitHub Bot commented on SCB-737:
------------------------------------
laijianbin commented on a change in pull request #936: [SCB-737]Avoid null
point exception
URL:
https://github.com/apache/incubator-servicecomb-java-chassis/pull/936#discussion_r223995579
##########
File path:
providers/provider-pojo/src/main/java/org/apache/servicecomb/provider/pojo/schema/PojoProducers.java
##########
@@ -63,6 +63,9 @@ protected void processProvider(String beanName, Object bean)
{
// aop后，新的实例的父类可能是原class，也可能只是个proxy，父类不是原class
// 所以，需要先取出原class，再取标注
Class<?> beanCls = BeanUtils.getImplClassFromBean(bean);
+ if(beanCls == null) {
Review comment:
@liubao68 ，you can reference this blog
http://3ms.huawei.com/km/groups/3618383/blogs/details/5589591
To resolve this problem, I just need to add a warn log will be ok?
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> avoid null point exception
> --------------------------
>
> Key: SCB-737
> URL: https://issues.apache.org/jira/browse/SCB-737
> Project: Apache ServiceComb
> Issue Type: Task
> Reporter: laijianbin
> Assignee: laijianbin
> Priority: Major
>
> 2018-07-11
> 03:27:52,651Z(28241):ERROR{}[main]org.springframework.boot.SpringApplication.reportFailure(SpringApplication.java:771)-->Application
> startup failed
> org.springframework.beans.factory.UnsatisfiedDependencyException: Error
> creating bean with name 'batchConfig': Unsatisfied dependency expressed
> through field 'jobBuilderFactory'; nested exception is
> org.springframework.beans.factory.BeanCreationException: Error creating bean
> with name 'jobBuilders' defined in class path resource
> [org/springframework/batch/core/configuration/annotation/SimpleBatchConfiguration.class]:
> Bean instantiation via factory method failed; nested exception is
> org.springframework.beans.BeanInstantiationException: Failed to instantiate
> [org.springframework.batch.core.configuration.annotation.JobBuilderFactory]:
> Factory method 'jobBuilders' threw exception; nested exception is
> org.springframework.beans.factory.BeanCreationException: Error creating bean
> with name 'jobRepository' defined in class path resource
> [org/springframework/batch/core/configuration/annotation/SimpleBatchConfiguration.class]:
> Initialization of bean failed; nested exception is
> java.lang.NullPointerException
>
> RELEASE]
> at
> org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
> ~[spring-beans-4.3.5.RELEASE.jar:4.3.5.RELEASE]
> at
> org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
> ~[spring-beans-4.3.5.RELEASE.jar:4.3.5.RELEASE]
> at
> org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
> ~[spring-beans-4.3.5.RELEASE.jar:4.3.5.RELEASE]
> at
> org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:207)
> ~[spring-beans-4.3.5.RELEASE.jar:4.3.5.RELEASE]
> at
> org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1136)
> ~[spring-beans-4.3.5.RELEASE.jar:4.3.5.RELEASE]
> at
> org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1064)
> ~[spring-beans-4.3.5.RELEASE.jar:4.3.5.RELEASE]
> at
> org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585)
> ~[spring-beans-4.3.5.RELEASE.jar:4.3.5.RELEASE]
> ... 19 more
> Caused by: java.lang.NullPointerException
> at
> org.apache.servicecomb.provider.rest.common.RestProducers.processProvider(RestProducers.java:52)
> ~[provider-rest-common-1.0.0.B003.6.jar:1.0.0.B003.6]
> at
> org.apache.servicecomb.provider.rest.common.RestProducers.postProcessAfterInitialization(RestProducers.java:43)
> ~[provider-rest-common-1.0.0.B003.6.jar:1.0.0.B003.6]
> at
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:423)
> ~[spring-beans-4.3.5.RELEASE.jar:4.3.5.RELEASE]
> at
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1594)
> ~[spring-beans-4.3.5.RELEASE.jar:4.3.5.RELEASE]
> at
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:554)
> ~[spring-beans-4.3.5.RELEASE.jar:4.3.5.RELEASE]
> at
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
> ~[spring-beans-4.3.5.RELEASE.jar:4.3.5.RELEASE]
> at
> org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
> ~[spring-beans-4.3.5.RELEASE.jar:4.3.5.RELEASE]
> at
> org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
> ~[spring-beans-4.3.5.RELEASE.jar:4.3.5.RELEASE]
> at
> org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
> ~[spring-beans-4.3.5.RELEASE.jar:4.3.5.RELEASE]
> at
> org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
> ~[spring-beans-4.3.5.RELEASE.jar:4.3.5.RELEASE]
> at
> org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:381)
> ~[spring-context-4.3.5.RELEASE.jar:4.3.5.RELEASE]
> at
> *org.springframework.batch.core.configuration.annotation.SimpleBatchConfiguration*$$EnhancerBySpringCGLIB$$9c449ea7.jobRepository(<generated>)
> ~[spring-batch-core-3.0.8.RELEASE.jar:3.0.8.RELEASE]
> at
> org.springframework.batch.core.configuration.annotation.AbstractBatchConfiguration.jobBuilders(AbstractBatchConfiguration.java:58)
> ~[spring-batch-core-3.0.8.RELEASE.jar:3.0.8.RELEASE]
> at
> org.springframework.batch.core.configuration.annotation.SimpleBatchConfiguration$$EnhancerBySpringCGLIB$$9c449ea7.CGLIB$jobBuilders$7(<generated>)
> ~[spring-batch-core-3.0.8.RELEASE.jar:3.0.8.RELEASE]
> at
> org.springframework.batch.core.configuration.annotation.SimpleBatchConfiguration$$EnhancerBySpringCGLIB$$9c449ea7$$FastClassBySpringCGLIB$$66766304.invoke(<generated>)
> ~[spring-batch-core-3.0.8.RELEASE.jar:3.0.8.RELEASE]
> at
> org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
> ~[spring-core-4.3.5.RELEASE.jar:4.3.5.RELEASE]
>
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