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How to use HibernateCursorItemReader in spring batch

In a spring batch job, I have a step in which I want to read data by chunk from the database using Hibernate, process it and write it back to the database. Right now I'm having some trouble setting up the reader :
#EnableBatchProcessing
#Configuration
#ComponentScan(basePackages = {"com.x.y.z.database", "com.x.y.p.database"}, excludeFilters={
#ComponentScan.Filter(type= FilterType.ASSIGNABLE_TYPE, value=ConfigHelperMail.class)})
#EntityScan(basePackages = {"com.x.y.z.database", "com.x.y.p.database"})
#EnableJpaRepositories({"com.x.y.z.database", "com.x.y.p.database"})
public class BatchConfiguration {
#Autowired
public JobBuilderFactory jobs;
#Bean
public Job job(CustomJobListener listener,
#Qualifier("step1") Step step1,
#Qualifier("step2") Step step2,
#Qualifier("step3") Step step3) {
return jobs.get("SimpleJobName")
.incrementer(new RunIdIncrementer())
.preventRestart()
.listener(listener)
.start(step1)
.next(step2)
.next(step3)
.build();
}
}
In step1 writer I save the data to the database using Hibernate :
#Entity
#Table(name = "tmp_z_stepone")
public class StepOneEntity {
#Id
#Column(name = "reference")
private String reference;
/** Other properties and getters and setters **/
}
#Component
public class StepOneWriter implements ItemWriter<StepOneEntity> {
#Autowired
private StepOneService stepOneService;
#Override
public void write (List<? extends StepOneEntity> items) throws WriterException {
stepOneService.saveMany(items);
}
}
StepOneService is annotated with #Service and it uses a DAO interface that extends CrudRepository<StepOneEntity, String> and its saveMany method just uses the save method from CrudRepository<StepOneEntity, String>.
Step 2
#Component
public class StepOne {
#Autowired
private StepTwoReader reader;
#Autowired
private StepTwoProcessor processor;
#Autowired
private StepTwoWriter writer;
#Bean
#JobScope
#Qualifier("step2")
public Step step2() throws ReaderException {
return stepBuilderFactory.get("step2")
.<StepOneEntity, StepTwoEntity>chunk(10)
.reader(reader.read())
.processor(processor)
.writer(writer)
.build();
}
}
#Component
public class StepTwoReader {
public ItemReader<OutputControleFormat> read () throws ReaderException {
HibernateCursorItemReader itemReader = new HibernateCursorItemReader();
itemReader.setQueryString("from tmp_z_stepone");
itemReader.setUseStatelessSession(true);
return itemReader;
}
}
I think I'm missionf some session/ORM configuration but I don't know where, the error is below :
org.springframework.batch.item.ItemStreamException: Failed to initialize the reader
at org.springframework.batch.item.support.AbstractItemCountingItemStreamItemReader.open(AbstractItemCountingItemStreamItemReader.java:147) ~[spring-batch-infrastructure-3.0.8.RELEASE.jar:3.0.8.RELEASE]
at org.springframework.batch.item.support.CompositeItemStream.open(CompositeItemStream.java:96) ~[spring-batch-infrastructure-3.0.8.RELEASE.jar:3.0.8.RELEASE]
at org.springframework.batch.core.step.item.ChunkMonitor.open(ChunkMonitor.java:114) ~[spring-batch-core-3.0.8.RELEASE.jar:3.0.8.RELEASE]
at org.springframework.batch.item.support.CompositeItemStream.open(CompositeItemStream.java:96) ~[spring-batch-infrastructure-3.0.8.RELEASE.jar:3.0.8.RELEASE]
at org.springframework.batch.core.step.tasklet.TaskletStep.open(TaskletStep.java:310) ~[spring-batch-core-3.0.8.RELEASE.jar:3.0.8.RELEASE]
at org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:197) ~[spring-batch-core-3.0.8.RELEASE.jar:3.0.8.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_92]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_92]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_92]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_92]
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333) [spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) [spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) [spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:133) [spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:121) [spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) [spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213) [spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at com.sun.proxy.$Proxy110.execute(Unknown Source) [na:na]
at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:148) [spring-batch-core-3.0.8.RELEASE.jar:3.0.8.RELEASE]
at org.springframework.batch.core.job.AbstractJob.handleStep(AbstractJob.java:392) [spring-batch-core-3.0.8.RELEASE.jar:3.0.8.RELEASE]
at org.springframework.batch.core.job.SimpleJob.doExecute(SimpleJob.java:135) [spring-batch-core-3.0.8.RELEASE.jar:3.0.8.RELEASE]
at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:306) [spring-batch-core-3.0.8.RELEASE.jar:3.0.8.RELEASE]
at org.springframework.batch.core.launch.support.SimpleJobLauncher$1.run(SimpleJobLauncher.java:135) [spring-batch-core-3.0.8.RELEASE.jar:3.0.8.RELEASE]
at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:50) [spring-core-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.batch.core.launch.support.SimpleJobLauncher.run(SimpleJobLauncher.java:128) [spring-batch-core-3.0.8.RELEASE.jar:3.0.8.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_92]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_92]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_92]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_92]
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333) [spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) [spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) [spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.batch.core.configuration.annotation.SimpleBatchConfiguration$PassthruAdvice.invoke(SimpleBatchConfiguration.java:127) [spring-batch-core-3.0.8.RELEASE.jar:3.0.8.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) [spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213) [spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE]
at com.sun.proxy.$Proxy107.run(Unknown Source) [na:na]
at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.execute(JobLauncherCommandLineRunner.java:211) [spring-boot-autoconfigure-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.executeLocalJobs(JobLauncherCommandLineRunner.java:227) [spring-boot-autoconfigure-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.launchJobFromProperties(JobLauncherCommandLineRunner.java:123) [spring-boot-autoconfigure-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.run(JobLauncherCommandLineRunner.java:117) [spring-boot-autoconfigure-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:732) [spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:716) [spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at org.springframework.boot.SpringApplication.afterRefresh(SpringApplication.java:703) [spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:304) [spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at com.cdn.oxc.signature.ApplicationConfig.main(ApplicationConfig.java:33) [classes/:na]
Caused by: java.lang.NullPointerException: null
at org.springframework.batch.item.database.HibernateItemReaderHelper.createQuery(HibernateItemReaderHelper.java:141) ~[spring-batch-infrastructure-3.0.8.RELEASE.jar:3.0.8.RELEASE]
at org.springframework.batch.item.database.HibernateItemReaderHelper.getForwardOnlyCursor(HibernateItemReaderHelper.java:125) ~[spring-batch-infrastructure-3.0.8.RELEASE.jar:3.0.8.RELEASE]
at org.springframework.batch.item.database.HibernateCursorItemReader.doOpen(HibernateCursorItemReader.java:185) ~[spring-batch-infrastructure-3.0.8.RELEASE.jar:3.0.8.RELEASE]
at org.springframework.batch.item.support.AbstractItemCountingItemStreamItemReader.open(AbstractItemCountingItemStreamItemReader.java:144) ~[spring-batch-infrastructure-3.0.8.RELEASE.jar:3.0.8.RELEASE]
... 46 common frames omitted

HibernateCursorItemReader implements the InitializingBean interface, which means that Spring will call its afterPropertiesSet on container initialization if it is declared as a bean. However, in your case, the HibernateCursorItemReader is not declared as a bean in the application context, it is wrapped in a class (StepTwoReader) then created with reader.read().
If you declare the HibernateCursorItemReader as a bean with your current code in your read method, you should get an IllegalStateException with message: "A SessionFactory must be provided". You actually need to configure a SessionFactory for your Hibernate reader.
Another option is to use the HibernateCursorItemReaderBuilder which will ensure the reader is correctly configured.

#StepScope
#Slf4j
#Component
public class CursorItemReader extends HibernateCursorItemReader<ItemEntity> {
public CursorItemReader(EntityManagerFactory entityManagerFactory,
#Value("#{stepExecution}")StepExecution stepExecution) {
this.setName("CursorItemReader");
this.setSessionFactory(entityManagerFactory.createEntityManager().unwrap(org.hibernate.Session.class).getSessionFactory());
this.setQueryString("from ItemEntity");
this.setUseStatelessSession(true);
this.setFetchSize(5);
}
#Override
public ItemEntity read() throws Exception {
ItemEntity item = this.doRead();
return item;
}
}
You can also refer-
https://docs.spring.io/spring-batch/docs/current/reference/html/readersAndWriters.html#HibernateCursorItemReader

Spring data JPA findFirst with where clause (filtering) and order by, internal exception thrown

I created the following repository
public interface DemoRepository extends CrudRepository<DemoEntity, DemoId> {
Optional<DemoEntity> findFirstByPositionIsNotNullOrderByIdCompositeFieldIdDesc(Long compositeFieldId);
}
And the entity class:
#Entity
#Table(name = "demo")
public class DemoEntity {
#EmbeddedId
private DemoId id;
#Column(name = "result_position")
private Integer position;
public DemoEntity() {
}
public DemoEntity(DemoId id) {
this.id = id;
}
public DemoId getId() {
return id;
}
public void setId(final DemoId id) {
this.id = id;
}
public Integer getPosition() {
return position;
}
public void setPosition(final Integer position) {
this.position = position;
}
}
And the composite id of the entity class:
#Embeddable
public class DemoId implements Serializable {
private static final long serialVersionUID = 4782012819350949578L;
#Column
private Long compositeFieldId;
#Column
private Long compositeFieldIdSecond;
public DemoId() {}
public DemoId(final Long compositeFieldId, final Long compositeFieldIdSecond) {
this.compositeFieldId = compositeFieldId;
this.compositeFieldIdSecond = compositeFieldIdSecond;
}
public Long getCompositeFieldId() {
return compositeFieldId;
}
public void setCompositeFieldId(final Long compositeFieldId) {
this.compositeFieldId = compositeFieldId;
}
public Long getCompositeFieldIdSecond() {
return compositeFieldIdSecond;
}
public void setCompositeFieldIdSecond(final Long compositeFieldIdSecond) {
this.compositeFieldIdSecond = compositeFieldIdSecond;
}
}
The Spring Boot 1.5.9 (which includes sprint-data-jpa 1.11.9) app starts successfully.
When I call an endpoint which is invoking my new repository method I get an exception:
Caused by: java.util.NoSuchElementException: null
at java.util.ArrayList$Itr.next(ArrayList.java:860)
at java.util.Collections$UnmodifiableCollection$1.next(Collections.java:1042)
at org.springframework.data.jpa.repository.query.CriteriaQueryParameterBinder.bind(CriteriaQueryParameterBinder.java:65)
at org.springframework.data.jpa.repository.query.ParameterBinder.bind(ParameterBinder.java:101)
at org.springframework.data.jpa.repository.query.ParameterBinder.bindAndPrepare(ParameterBinder.java:161)
at org.springframework.data.jpa.repository.query.ParameterBinder.bindAndPrepare(ParameterBinder.java:152)
at org.springframework.data.jpa.repository.query.PartTreeJpaQuery$QueryPreparer.invokeBinding(PartTreeJpaQuery.java:236)
at org.springframework.data.jpa.repository.query.PartTreeJpaQuery$QueryPreparer.createQuery(PartTreeJpaQuery.java:157)
at org.springframework.data.jpa.repository.query.PartTreeJpaQuery.doCreateQuery(PartTreeJpaQuery.java:86)
at org.springframework.data.jpa.repository.query.AbstractJpaQuery.createQuery(AbstractJpaQuery.java:190)
at org.springframework.data.jpa.repository.query.JpaQueryExecution$SingleEntityExecution.doExecute(JpaQueryExecution.java:208)
at org.springframework.data.jpa.repository.query.JpaQueryExecution.execute(JpaQueryExecution.java:87)
at org.springframework.data.jpa.repository.query.AbstractJpaQuery.doExecute(AbstractJpaQuery.java:116)
at org.springframework.data.jpa.repository.query.AbstractJpaQuery.execute(AbstractJpaQuery.java:106)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:499)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:477)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:56)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:133)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:57)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
at com.sun.proxy.$Proxy119.findFirstByPositionIsNotNullOrderByIdCompositeFieldIdDesc(Unknown Source)
at io.demo.db.services.PlayerService.hasPlayedRecently(PlayerService.java:56)
at io.demo.db.services.PlayerService$$FastClassBySpringCGLIB$$9179d222.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:738)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:673)
at io.demo.db.services.DemoService$$EnhancerBySpringCGLIB$$139c2adc.hasPlayedRecently(<generated>)
at io.demo.rest.DemoController.subscribe(DemoController.java:80)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
... 85 common frames omitted
The exception kinda makes sense as the query should return no result in my test, but I would expect to get an empty optional instead of an exception.
Is this a bug or I am mis-using Spring Data? The db is mysql 5.7.
I then tried to upgrade to Spring Boot 2.0 which includes Spring Data Jpa 2.0.5, now the app fails to create the repository during start up:
Caused by: java.lang.IllegalArgumentException: Failed to create query for method public abstract java.util.Optional io.demo.db.repositories.DemoRepository.findFirstByPositionIsNotNullOrderByIdCompositeFieldIdDesc(java.lang.Long)! Index: 0, Size: 0
at org.springframework.data.jpa.repository.query.PartTreeJpaQuery.<init>(PartTreeJpaQuery.java:82)
at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:103)
at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateIfNotFoundQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:208)
at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$AbstractQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:79)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lookupQuery(RepositoryFactorySupport.java:553)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$mapMethodsToQuery$1(RepositoryFactorySupport.java:546)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
at java.util.Iterator.forEachRemaining(Iterator.java:116)
at java.util.Collections$UnmodifiableCollection$1.forEachRemaining(Collections.java:1049)
at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.mapMethodsToQuery(RepositoryFactorySupport.java:548)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$new$0(RepositoryFactorySupport.java:538)
at java.util.Optional.map(Optional.java:215)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.<init>(RepositoryFactorySupport.java:538)
at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:317)
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.lambda$afterPropertiesSet$3(RepositoryFactoryBeanSupport.java:287)
at org.springframework.data.util.Lazy.getNullable(Lazy.java:141)
at org.springframework.data.util.Lazy.get(Lazy.java:63)
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:290)
at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:102)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1769)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1706)
... 35 common frames omitted
Caused by: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at java.util.ArrayList.rangeCheck(ArrayList.java:657)
at java.util.ArrayList.get(ArrayList.java:433)
at java.util.Collections$UnmodifiableList.get(Collections.java:1309)
at org.springframework.data.jpa.repository.query.QueryParameterSetterFactory$CriteriaQueryParameterSetterFactory.create(QueryParameterSetterFactory.java:271)
at org.springframework.data.jpa.repository.query.ParameterBinderFactory.lambda$createQueryParameterSetter$1(ParameterBinderFactory.java:138)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
at java.util.Spliterators$ArraySpliterator.tryAdvance(Spliterators.java:958)
at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:126)
at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:498)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:485)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:152)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:464)
at org.springframework.data.jpa.repository.query.ParameterBinderFactory.createQueryParameterSetter(ParameterBinderFactory.java:140)
at org.springframework.data.jpa.repository.query.ParameterBinderFactory.lambda$createSetters$0(ParameterBinderFactory.java:130)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1380)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
at org.springframework.data.jpa.repository.query.ParameterBinderFactory.createSetters(ParameterBinderFactory.java:131)
at org.springframework.data.jpa.repository.query.ParameterBinderFactory.createSetters(ParameterBinderFactory.java:123)
at org.springframework.data.jpa.repository.query.ParameterBinderFactory.createCriteriaBinder(ParameterBinderFactory.java:75)
at org.springframework.data.jpa.repository.query.PartTreeJpaQuery$QueryPreparer.getBinder(PartTreeJpaQuery.java:248)
at org.springframework.data.jpa.repository.query.PartTreeJpaQuery$QueryPreparer.<init>(PartTreeJpaQuery.java:147)
at org.springframework.data.jpa.repository.query.PartTreeJpaQuery$CountQueryPreparer.<init>(PartTreeJpaQuery.java:268)
at org.springframework.data.jpa.repository.query.PartTreeJpaQuery.<init>(PartTreeJpaQuery.java:77)
... 61 common frames omitted
Still don't get why as the exception is not descriptive.
Thank you.

Found the issue, my repository method expects a parameter which is not needed by the query itself. Anyway the exception reported by Spring Data is a bit confusing, I've logged a bug in their bugtracker and they are looking at it: https://jira.spring.io/browse/DATAJPA-1281

NullPointerException when Inserting Data using ManyToMany in SpringBoot Application [duplicate]

This question already has answers here:
What is a NullPointerException, and how do I fix it?
(12 answers)
Closed 5 years ago.
I have tried all I could but I keep getting NullPointerException Error.
I have two Spring boot entities that have been mapped together using ManyToMany mapping. These Entities are fine as all the tables are created.
However, when I try to insert data, I get a NullPointerException.
Can someone please point me to what I am doing wrong?
Below is the code that I'm using to insert the data:
import com.ait.aiadmin.model.Cluster;
import com.ait.aiadmin.model.Subscriber;
import com.ait.aiadmin.repository.ClusterRepository;
import com.ait.aiadmin.repository.SubscriberRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.stereotype.Component;
import javax.transaction.Transactional;
#SpringBootApplication
public class AiAdminApplication {
public static void main(String[] args) {
SpringApplication.run(AiAdminApplication.class, args);
/*ApplicationContext ctx = SpringApplication.run(AiAdminApplication.class, args);
String [] beanNames = ctx.getBeanDefinitionNames();
Arrays.sort(beanNames);
for (String name: beanNames){
System.out.println(name);
}*/
}
#Component
public class DatabaseLoader implements CommandLineRunner {
private final SubscriberRepository subscriberRepository;
private final ClusterRepository clusterRepository;
#Autowired
public DatabaseLoader(SubscriberRepository subscriberRepository, ClusterRepository clusterRepository) {
this.subscriberRepository = subscriberRepository;
this.clusterRepository = clusterRepository;
}
#Override
#Transactional
public void run (String...strings) throws Exception {
Subscriber subscriber1 = new Subscriber("Olalekan Samuel", "Ogunleye", "olalekan#gmail.com");
Cluster cluster1 = new Cluster("Aws-eu-west-1", "Ireland", "123.98.45", "Olalekan Samuel");
subscriber1.clusters.add(cluster1);
this.subscriberRepository.save(subscriber1);
this.clusterRepository.save(cluster1);
}
}
And below is the error that I am getting
java.lang.IllegalStateException: Failed to execute CommandLineRunner
at
org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:735)
[spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE] at
org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:716)
[spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE] at
org.springframework.boot.SpringApplication.afterRefresh(SpringApplication.java:703)
[spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:304)
[spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:1118)
[spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:1107)
[spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE] at
com.ait.aiadmin.AiAdminApplication.main(AiAdminApplication.java:19)
[classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method) ~[na:1.8.0_152] at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
~[na:1.8.0_152] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[na:1.8.0_152] at java.lang.reflect.Method.invoke(Method.java:498)
~[na:1.8.0_152] at
org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)
[spring-boot-devtools-1.5.8.RELEASE.jar:1.5.8.RELEASE] Caused by:
java.lang.NullPointerException: null at
com.ait.aiadmin.AiAdminApplication$DatabaseLoader.run(AiAdminApplication.java:73)
~[classes/:na] at
com.ait.aiadmin.AiAdminApplication$DatabaseLoader$$FastClassBySpringCGLIB$$d20028d3.invoke()
~[classes/:na] at
org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
~[spring-core-4.3.12.RELEASE.jar:4.3.12.RELEASE] at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:738)
~[spring-aop-4.3.12.RELEASE.jar:4.3.12.RELEASE] at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
~[spring-aop-4.3.12.RELEASE.jar:4.3.12.RELEASE] at
org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
~[spring-tx-4.3.12.RELEASE.jar:4.3.12.RELEASE] at
org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
~[spring-tx-4.3.12.RELEASE.jar:4.3.12.RELEASE] at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
~[spring-tx-4.3.12.RELEASE.jar:4.3.12.RELEASE] at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
~[spring-aop-4.3.12.RELEASE.jar:4.3.12.RELEASE] at
org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:673)
~[spring-aop-4.3.12.RELEASE.jar:4.3.12.RELEASE] at
com.ait.aiadmin.AiAdminApplication$DatabaseLoader$$EnhancerBySpringCGLIB$$6e72d57b.run()
~[classes/:na] at
org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:732)
[spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE] ... 11 common frames
omitted

I don't know your code for the Subscriber, but I would guess the NPE occurs, because subscriber1.clusters is not initialized. Make sure that all Collections in your entities are created correctly.
In my applications I often use the getter for a collection to initialize it, if it does not exist, e.g.:
public List<Something> getSomethings() {
if (somethings == null) {
somethings = new ArrayList<>();
}
return somethings;
}

How to get root cause of AssertionFailure 'Table not found' when using MariaDB with Hibernate Filter?

I am using the following test setup for evaluating Hibernate Filter features with various databses:
Spring Boot Starter 1.5.3.RELEASE
Hibernate 5.2.10.Final
Spring Data Envers 1.1.3.RELEASE -> Spring Data JPA 1.11.3.RELEASE
mariadb-java-client 1.5.9
HikariCP 2.6.1
MariaDB 10.1.22 (docker container)
The database schema is setup using Flyway and works fine, so the table is there.
Now I've got an entity class 'User' with a custom table name and a filter for the active-field:
#Entity
#Table(name = "\"users\"")
#FilterDef(name = "activeUsers", parameters = #ParamDef(name = "active", type = "boolean"))
#Filter(name = "activeUsers", condition = "\"active\" = :active")
public class User {
#Id
private Long id;
private boolean active;
// getters/setters (not shown)
}
In addition, a custom repository is provided to allow usage of the filter:
public interface RepositoryExtended<T> {
Iterable<T> findAll(boolean active);
}
public class UserRepositoryImpl implements RepositoryExtended<User> {
#Autowired
private UserRepository userRepository;
#Override
public Iterable<User> findAll(boolean active) {
EntityManagerHolder holder = (EntityManagerHolder) TransactionSynchronizationManager.getResource(entityManagerFactory);
EntityManager entityManager = holder.getEntityManager();
Filter hibernateFilter = entityManager.unwrap(Session.class).enableFilter("activeUsers").setParameter("active", active);
hibernateFilter.validate();
Iterable<User> users = userRepository.findAll();
entityManager.unwrap(Session.class).disableFilter("activeUsers");
return users;
}
}
Final the UserRepository based on Spring Data JPA CrudRepository and the custom repository from above:
public interface UserRepository extends CrudRepository<User, Long>, RepositoryExtended<User> {
}
Now the test setup:
#RunWith(SpringRunner.class)
#Transactional
#Rollback
#ContextConfiguration(classes = { DBConfig.class })
public class UserRepositoryTests {
#PersistenceContext
private EntityManager em;
#Autowired
UserRepository repository;
#Before
public void setUp() {
user = new User();
user.setActive(true);
user = repository.save(user);
user2 = new User();
user2.setActive(true);
user2 = repository.save(user2);
em.flush();
em.clear();
}
#Test
public void filteredQueries() {
assertEquals(2, repository.count());
assertTrue(repository.findAll().iterator().hasNext());
Iterable<User> findAllActive = repository.findAll(true); // THIS FAILS
assertTrue(findAllActive.iterator().hasNext());
}
}
with the JDBC and Hibernate/JPA settings:
mariadb.db.driver=org.mariadb.jdbc.Driver
mariadb.db.url=jdbc:mariadb://127.0.0.1:3306/PRORK
mariadb.db.username=root
mariadb.db.password=root
hibernate.dialect=org.hibernate.dialect.MariaDB53Dialect
hibernate.globally_quoted_identifiers=true
hibernate.hbm2ddl.auto=validate
hibernate.format_sql=true
hibernate.show_sql=true
hibernate.default_schema=PRORK
Used in bean configuration:
#Configuration
#EnableTransactionManagement
public class DBConfig {
#Bean(destroyMethod = "close")
public DataSource dataSource(Environment env) {
HikariConfig dataSourceConfig = new HikariConfig();
dataSourceConfig.setDriverClassName("org.mariadb.jdbc.Driver");
dataSourceConfig.setJdbcUrl("jdbc:mariadb://127.0.0.1:3306/PRORK");
dataSourceConfig.setUsername("root");
dataSourceConfig.setPassword("root");
return new HikariDataSource(dataSourceConfig);
}
#Bean
public Properties jpaProperties() {
Properties jpaProperties = new Properties();
jpaProperties.put(hibernate.dialect, "org.hibernate.dialect.MariaDB53Dialect");
jpaProperties.put(hibernate.hbm2ddl.auto,"validate");
jpaProperties.put(hibernate.show_sql,"true");
jpaProperties.put(hibernate.format_sql,"true");
jpaProperties.put(hibernate.globally_quoted_identifiers,"true");
jpaProperties.put(hibernate.default_schema, "PRORK");
return jpaProperties;
}
#Bean
LocalContainerEntityManagerFactoryBean entityManagerFactory(DataSource dataSource) {
LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean();
entityManagerFactoryBean.setDataSource(dataSource);
entityManagerFactoryBean.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
entityManagerFactoryBean.setPackagesToScan("test.prork");
entityManagerFactoryBean.setJpaProperties(jpaProperties());
return entityManagerFactoryBean;
}
#Bean
JpaTransactionManager transactionManager(EntityManagerFactory entityManagerFactory) {
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(entityManagerFactory);
return transactionManager;
}
}
Running the test results in the following stacktrace:
org.hibernate.AssertionFailure: Table `PRORK`.`users` not found
at org.hibernate.persister.entity.AbstractEntityPersister.getTableId(AbstractEntityPersister.java:5231)
at org.hibernate.internal.DynamicFilterAliasGenerator.getAlias(DynamicFilterAliasGenerator.java:31)
at org.hibernate.internal.FilterHelper.render(FilterHelper.java:109)
at org.hibernate.internal.FilterHelper.render(FilterHelper.java:96)
at org.hibernate.persister.entity.AbstractEntityPersister.filterFragment(AbstractEntityPersister.java:3641)
at org.hibernate.engine.internal.JoinSequence.toJoinFragment(JoinSequence.java:201)
at org.hibernate.engine.internal.JoinSequence.toJoinFragment(JoinSequence.java:187)
at org.hibernate.hql.internal.ast.util.JoinProcessor.addJoinNodes(JoinProcessor.java:164)
at org.hibernate.hql.internal.ast.util.JoinProcessor.processJoins(JoinProcessor.java:158)
at org.hibernate.hql.internal.ast.HqlSqlWalker.processQuery(HqlSqlWalker.java:785)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:677)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:313)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:261)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:266)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:189)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:141)
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:115)
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:77)
at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:153)
at org.hibernate.internal.AbstractSharedSessionContract.getQueryPlan(AbstractSharedSessionContract.java:546)
at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:655)
at org.hibernate.internal.SessionImpl.createQuery(SessionImpl.java:3318)
at org.hibernate.query.criteria.internal.CriteriaQueryImpl$1.buildCompiledQuery(CriteriaQueryImpl.java:318)
at org.hibernate.query.criteria.internal.compile.CriteriaCompiler.compile(CriteriaCompiler.java:127)
at org.hibernate.internal.SessionImpl.createQuery(SessionImpl.java:3611)
at org.hibernate.internal.SessionImpl.createQuery(SessionImpl.java:203)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:298)
at com.sun.proxy.$Proxy116.createQuery(Unknown Source)
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.getQuery(SimpleJpaRepository.java:656)
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.getQuery(SimpleJpaRepository.java:633)
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.findAll(SimpleJpaRepository.java:329)
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.findAll(SimpleJpaRepository.java:74)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.executeMethodOn(RepositoryFactorySupport.java:504)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:489)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:461)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:61)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:133)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:57)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
at com.sun.proxy.$Proxy120.findAll(Unknown Source)
at test.prork.persistence.UserRepositoryImpl.findAll(UserRepositoryImpl.java:77)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.executeMethodOn(RepositoryFactorySupport.java:504)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:479)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:461)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:61)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:133)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:57)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
at com.sun.proxy.$Proxy120.findAll(Unknown Source)
at test.prork.persistence.AbstractUserRepositoryTests.filteredQueries(AbstractUserRepositoryTests.java:199)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:252)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191)
at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.runTestClass(JUnitTestClassExecuter.java:114)
at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.execute(JUnitTestClassExecuter.java:57)
at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassProcessor.processTestClass(JUnitTestClassProcessor.java:66)
at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:51)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
at com.sun.proxy.$Proxy2.processTestClass(Unknown Source)
at org.gradle.api.internal.tasks.testing.worker.TestWorker.processTestClass(TestWorker.java:109)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:147)
at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:129)
at org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:404)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:46)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:748)
The same test works without problems for H2, PostgreSQL and Oracle DB, only MariaDB fails. Also note that the findAll() method without Hibernate filter works just fine, the count method as well. Some other basic CrudRepository method tests not shown work as well for all four database systems.
Am I doing something wrong with my method applying the filter and for the other database systems it just works by accident?
Or are there any setup errors or special settings to keep in mind for MariaDB with Hibernate Filters?

There are two problems in the setup/code:
First MySQL / MariaDB don't have a schema, so remove the
hibernate.default_schema
setting to get rid of the AssertionFailure as they use catalog and not schema. Should be given by the JDBC connection anyways. This Hibernate JIRA ticket gave me the necessary hint, although there are more tickets pointing directly/indirectly to this cause.
Second for MariaDB using the filter will still fail (maybe for MySQL as well, did not test it). This is because of the quotes in the Filter condition are in JPA style, but only the hibernate legacy quotes (i.e. using backtips) seem to work for now. No quotes at all does not work either.
The entity now looks like:
#Entity
#Table(name = "\"users\"")
#FilterDef(name = "activeUsers", parameters = #ParamDef(name = "active", type = "boolean"))
#Filter(name = "activeUsers", condition = "`active` = :active")
public class User {
#Id
private Long id;
private boolean active;
// getters/setters (not shown)
}
A last tip as it helped me identifying the second issue: take a close
look at the Hibernate SQL queries generated from HQL, especially regarding quotes etc.
Update: I've opened a ticket in the Hibernate JIRA as it may be a Hibernate (MariaDB dialect) issue.

It is not a bug, the #Filter condition value is an SQL expression that is passed directly to the database.
It seems Mariadb supports both type of quotes except when sql_mode = "ANSI_QUOTES" https://mariadb.com/resources/blog/quotes

Spring-Batch proxy class cannot be cast to Class?

I have a spring-batch #Job defined. But when running it (inside tomcat), I'm getting a ClassCastException due to com.sun.proxy.$Proxy.
Why could this be the case? What might be wrong in the following excerpt?
#Service
public class JobService {
#Autowired
private JobLauncher launcher;
public void run() {
Job job = jobRegistry.getJob("jobname");
launcher.run(job, params); //line 59
}
}
#Configuration
#EnableBatchProcessing(modular = true)
public class JobConfig {
#Bean
#JobScope
public MultiResourceItemReader<T> reader(#Value("#{jobParameters['filename']}") Resource csv) throws Exception {
MultiResourceItemReader<T> itemReader = new MultiResourceItemReader<>();
//...
return itemReader;
}
#Bean
public JobScope jobScope() {
return new JobScope();
}
}
Result:
java.lang.ClassCastException: com.sun.proxy.$Proxy135 cannot be cast to org.springframework.batch.item.file.MultiResourceItemReader
at org.springframework.batch.item.file.MultiResourceItemReader$$FastClassBySpringCGLIB$$ad846cb.invoke(<generated>) ~[spring-core-4.0.6.RELEASE.jar:3.0.1.RELEASE]
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) ~[spring-core-4.0.6.RELEASE.jar:4.0.6.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:708) ~[spring-aop-4.0.6.RELEASE.jar:4.0.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) ~[spring-aop-4.0.6.RELEASE.jar:4.0.6.RELEASE]
at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:133) ~[spring-aop-4.0.6.RELEASE.jar:4.0.6.RELEASE]
at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:121) ~[spring-aop-4.0.6.RELEASE.jar:4.0.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.0.6.RELEASE.jar:4.0.6.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:644) ~[spring-aop-4.0.6.RELEASE.jar:4.0.6.RELEASE]
at org.springframework.batch.item.file.MultiResourceItemReader$$EnhancerBySpringCGLIB$$3a188c22.close(<generated>) ~[spring-core-4.0.6.RELEASE.jar:3.0.1.RELEASE]
at org.springframework.batch.item.support.CompositeItemStream.close(CompositeItemStream.java:85) ~[spring-batch-infrastructure-3.0.1.RELEASE.jar:3.0.1.RELEASE]
at org.springframework.batch.core.step.item.ChunkMonitor.close(ChunkMonitor.java:106) ~[spring-batch-core-3.0.1.RELEASE.jar:3.0.1.RELEASE]
at org.springframework.batch.item.support.CompositeItemStream.close(CompositeItemStream.java:85) ~[spring-batch-infrastructure-3.0.1.RELEASE.jar:3.0.1.RELEASE]
at org.springframework.batch.core.step.tasklet.TaskletStep.close(TaskletStep.java:305) ~[spring-batch-core-3.0.1.RELEASE.jar:3.0.1.RELEASE]
at org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:267) [spring-batch-core-3.0.1.RELEASE.jar:3.0.1.RELEASE]
at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:148) [spring-batch-core-3.0.1.RELEASE.jar:3.0.1.RELEASE]
at org.springframework.batch.core.job.AbstractJob.handleStep(AbstractJob.java:386) [spring-batch-core-3.0.1.RELEASE.jar:3.0.1.RELEASE]
at org.springframework.batch.core.job.SimpleJob.doExecute(SimpleJob.java:135) [spring-batch-core-3.0.1.RELEASE.jar:3.0.1.RELEASE]
at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:304) [spring-batch-core-3.0.1.RELEASE.jar:3.0.1.RELEASE]
at org.springframework.batch.core.launch.support.SimpleJobLauncher$1.run(SimpleJobLauncher.java:135) [spring-batch-core-3.0.1.RELEASE.jar:3.0.1.RELEASE]
at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:50) [spring-core-4.0.6.RELEASE.jar:4.0.6.RELEASE]
at org.springframework.batch.core.launch.support.SimpleJobLauncher.run(SimpleJobLauncher.java:128) [spring-batch-core-3.0.1.RELEASE.jar:3.0.1.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_51]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[?:1.7.0_51]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.7.0_51]
at java.lang.reflect.Method.invoke(Method.java:606) ~[?:1.7.0_51]
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317) [spring-aop-4.0.6.RELEASE.jar:4.0.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) [spring-aop-4.0.6.RELEASE.jar:4.0.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) [spring-aop-4.0.6.RELEASE.jar:4.0.6.RELEASE]
at org.springframework.batch.core.configuration.annotation.SimpleBatchConfiguration$PassthruAdvice.invoke(SimpleBatchConfiguration.java:127) [spring-batch-core-3.0.1.RELEASE.jar:3.0.1.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) [spring-aop-4.0.6.RELEASE.jar:4.0.6.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) [spring-aop-4.0.6.RELEASE.jar:4.0.6.RELEASE]
at com.sun.proxy.$Proxy52.run(Unknown Source) [?:?]
at my.JobService.run(JobExecutor.java:59)

If you don't need a concrete type for reader return a ItemReader<T> from reader() function.
#JobScope proxy the target class with a CGLIB proxy by default.