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org.hibernate.LazyInitializationException: could not initialize proxy [com.jejunet.cms.server.domain.Server#216] - no Session

at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:169)

at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:309)

at org.hibernate.proxy.pojo.bytebuddy.ByteBuddyInterceptor.intercept(ByteBuddyInterceptor.java:45)

at org.hibernate.proxy.ProxyConfiguration$InterceptorDispatcher.intercept(ProxyConfiguration.java:95)

at com.jejunet.cms.server.domain.Server$HibernateProxy$1dTl2oLJ.getName(Unknown Source)

at com.jejunet.cms.server.ServerServiceTest.getServer(ServerServiceTest.java:122)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:566)

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.springframework.test.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:74)

at org.springframework.test.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:84)

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:251)

at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97)

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:190)

at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:89)

at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:41)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:541)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:763)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:463)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:209)


아래와 같이 테스트 메소드를 단순히 저장하고 조회 하는데 예외 발생했다.

단건 가져오는것에 japRepository 기능 구현이 다른가보다.

repository.findByid(id);  /* Retrieves an entity by its id  */

repository.getOne(id);  /* Returns a reference to the entity with the given identifier. */ <= 이놈 쓰면 오류남 

@Test

public void getServer() {

Server savedServer = repository.save(new Server(SERVER_NAME));

Optional<Server> server2 = serverService.getServer(savedServer.getId());

assertEquals(savedServer.getName(), server2.get().getName());

}


아래 블로그에서 싶게 설명하고 있다. 

영속성 관련해서 레퍼런스만 필요할때 경우에 따라 쓴다고 하네요.(복잡함 ㅠㅠ)

https://bebong.tistory.com/entry/JPA-Lazy-Evaluation-LazyInitializationException-could-not-initialize-proxy-%E2%80%93-no-Session 

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테스트코드 Junit 실행시 예외다.

말그대로 쿼리 실행할수 없는 문장이라고 한다.

아래 regist_dt 가 Not null 인데 널값을 Insert 할려고 하니 오류다.

값을 채워서 실행 했다.


javax.persistence.PersistenceException: org.hibernate.exception.ConstraintViolationException: could not execute statement

at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:149)

at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:157)

at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:164)

at org.hibernate.internal.SessionImpl.doFlush(SessionImpl.java:1443)

at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1423)

at org.springframework.boot.test.autoconfigure.orm.jpa.TestEntityManager.flush(TestEntityManager.java:172)

at org.springframework.boot.test.autoconfigure.orm.jpa.TestEntityManager.persistAndFlush(TestEntityManager.java:132)

at org.springframework.boot.test.autoconfigure.orm.jpa.TestEntityManager.persistFlushFind(TestEntityManager.java:112)

at com.jejunet.ar.repositories.CodeTypeRepositoryTest.getCodeType_returnCodeTypeDetails(CodeTypeRepositoryTest.java:31)

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.springframework.test.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:73)

at org.springframework.test.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:83)

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:251)

at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97)

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:190)

at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)

at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:538)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:760)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:460)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:206)

Caused by: org.hibernate.exception.ConstraintViolationException: could not execute statement

at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:59)

at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)

at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:111)

at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:97)

at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:178)

at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3032)

at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3547)

at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:89)

at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:600)

at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:474)

at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:337)

at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:39)

at org.hibernate.internal.SessionImpl.doFlush(SessionImpl.java:1437)

... 36 more

Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Column 'regist_dt' cannot be null

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)

at java.lang.reflect.Constructor.newInstance(Constructor.java:423)

at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)

at com.mysql.jdbc.Util.getInstance(Util.java:408)

at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:936)

at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3976)

at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3912)

at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530)

at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683)

at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2486)

at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1858)

at com.mysql.jdbc.PreparedStatement.executeUpdateInternal(PreparedStatement.java:2079)

at com.mysql.jdbc.PreparedStatement.executeUpdateInternal(PreparedStatement.java:2013)

at com.mysql.jdbc.PreparedStatement.executeLargeUpdate(PreparedStatement.java:5104)

at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1998)

at com.zaxxer.hikari.pool.ProxyPreparedStatement.executeUpdate(ProxyPreparedStatement.java:61)

at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeUpdate(HikariProxyPreparedStatement.java)

at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:175)

... 44 more



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