I am trying to write a spring -data-jpa existsBy () repository for an object that has a composite primary key defined via @IdClass. However, when I try to add the existBy () construct to the store, the application cannot load the application context due to a NullPointerException. It seems that AbstractPersistable_id is not set, but I cannot understand why and how I can configure it.
I tried to map my implementation to the classes consumed by the sample tests in the spring -data-jpa repository. Not good. I also tried loading the spring -data-jpa library for debugging through my test case, but even checking the tag with a clean workspace, I can’t get spring test tests for compilation and running for life. This may indicate a problem with Works On My Device, but I reproduced my existsBy () problem on two other machines: one Windows 7 and one Linux. I'm starting to wonder if this could be a bug in sleep mode or in another of my dependencies.
I also know that when I check objects that do not have a composite primary key, the existsBy () projection test compiles and works fine, probably because the code does not go through fork JpaQueryCreator.complete (), which refers to AbstractPersistable_id, I can also add predictions other than existBy, such as countBy (), to the repository for objects with composite primary keys, and it will compile in order. This is only a combination of existBy () and the primary connection key @IdClass, which causes the problem.
Version Information: This repo uses Hibernate 5.1.0.Final ORM, hibernate jpa 2.1, spring-data-jpa 1.11.3 and spring-boot-starter-data-jpa 1.5.3.RELEASE.
Github sample project
Essence:
import java.io.Serializable; import javax.persistence.Entity; import javax.persistence.Id; import javax.persistence.IdClass; import com.example.exists.bug.entities.TestEntity.TestEntityPK; @Entity @IdClass(TestEntityPK.class) public class TestEntity { @Id private String parent; @Id private String child;
Repository:
import java.io.Serializable; import org.springframework.data.jpa.repository.JpaSpecificationExecutor; import org.springframework.data.repository.PagingAndSortingRepository; import org.springframework.stereotype.Repository; import com.example.exists.bug.entities.TestEntity; @Repository public interface TestEntityRepository extends PagingAndSortingRepository<TestEntity, Serializable>, JpaSpecificationExecutor<TestEntity> { boolean existsByParent(String parent); }
Test case:
package com.example.exists.bug; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest; import org.springframework.data.jpa.domain.AbstractPersistable_; import org.springframework.test.context.junit4.SpringRunner; import com.example.exists.bug.repository.TestEntityRepository; @RunWith(SpringRunner.class) @DataJpaTest(showSql = false) public class TestEntityRepositoryTest { @Autowired private TestEntityRepository testEntityRepository; @Test public void existsByParentCausesApplicationSetupToFailWithNullPointerException() { testEntityRepository.existsByParent("parent"); } }
An exception:
java.lang.IllegalStateException: Failed to load ApplicationContext at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:124) ~[spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:83) ~[spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.boot.test.autoconfigure.SpringBootDependencyInjectionTestExecutionListener.prepareTestInstance(SpringBootDependencyInjectionTestExecutionListener.java:47) ~[spring-boot-test-autoconfigure-1.5.3.RELEASE.jar:1.5.3.RELEASE] at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:230) ~[spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:228) [spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:287) [spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) [junit-4.12.jar:4.12] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:289) [spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:247) [spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94) [spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) [junit-4.12.jar:4.12] at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) [junit-4.12.jar:4.12] at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) [junit-4.12.jar:4.12] at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) [junit-4.12.jar:4.12] at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) [junit-4.12.jar:4.12] at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) [spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) [spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.junit.runners.ParentRunner.run(ParentRunner.java:363) [junit-4.12.jar:4.12] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191) [spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86) [.cp/:na] at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) [.cp/:na] at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) [.cp/:na] at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678) [.cp/:na] at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) [.cp/:na] at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) [.cp/:na] Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testEntityRepository': Invocation of init method failed; nested exception is java.lang.NullPointerException at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1628) ~[spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) ~[spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:742) ~[spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866) ~[spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542) ~[spring-context-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:737) ~[spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:370) ~[spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:314) ~[spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE] at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:120) ~[spring-boot-test-1.5.3.RELEASE.jar:1.5.3.RELEASE] at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:98) ~[spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:116) ~[spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE] ... 24 common frames omitted Caused by: java.lang.NullPointerException: null at org.hibernate.jpa.criteria.path.AbstractPathImpl.get(AbstractPathImpl.java:123) ~[hibernate-entitymanager-5.0.12.Final.jar:5.0.12.Final] at org.springframework.data.jpa.repository.query.JpaQueryCreator.complete(JpaQueryCreator.java:187) ~[spring-data-jpa-1.11.3.RELEASE.jar:na] at org.springframework.data.jpa.repository.query.JpaQueryCreator.complete(JpaQueryCreator.java:143) ~[spring-data-jpa-1.11.3.RELEASE.jar:na] at org.springframework.data.jpa.repository.query.JpaQueryCreator.complete(JpaQueryCreator.java:52) ~[spring-data-jpa-1.11.3.RELEASE.jar:na] at org.springframework.data.repository.query.parser.AbstractQueryCreator.createQuery(AbstractQueryCreator.java:88) ~[spring-data-commons-1.13.3.RELEASE.jar:na] at org.springframework.data.repository.query.parser.AbstractQueryCreator.createQuery(AbstractQueryCreator.java:73) ~[spring-data-commons-1.13.3.RELEASE.jar:na] at org.springframework.data.jpa.repository.query.PartTreeJpaQuery$QueryPreparer.<init>(PartTreeJpaQuery.java:126) ~[spring-data-jpa-1.11.3.RELEASE.jar:na] at org.springframework.data.jpa.repository.query.PartTreeJpaQuery.<init>(PartTreeJpaQuery.java:70) ~[spring-data-jpa-1.11.3.RELEASE.jar:na] at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:103) ~[spring-data-jpa-1.11.3.RELEASE.jar:na] at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateIfNotFoundQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:214) ~[spring-data-jpa-1.11.3.RELEASE.jar:na] at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$AbstractQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:77) ~[spring-data-jpa-1.11.3.RELEASE.jar:na] at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.<init>(RepositoryFactorySupport.java:436) ~[spring-data-commons-1.13.3.RELEASE.jar:na] at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:221) ~[spring-data-commons-1.13.3.RELEASE.jar:na] at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:277) ~[spring-data-commons-1.13.3.RELEASE.jar:na] at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:263) ~[spring-data-commons-1.13.3.RELEASE.jar:na] at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:101) ~[spring-data-jpa-1.11.3.RELEASE.jar:na] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1687) ~[spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624) ~[spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE] ... 39 common frames omitted