org.springframework.dao.DataIntegrityViolationException: could not insert: [com.dayspringTech.jgabler.hypersonicHibernateSpringExample.Book];
nested exception is org.hibernate.exception.ConstraintViolationException: could not insert:
	[com.dayspringTech.jgabler.hypersonicHibernateSpringExample.Book]
Caused by: org.hibernate.exception.ConstraintViolationException: could not insert:
	[com.dayspringTech.jgabler.hypersonicHibernateSpringExample.Book]
	at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:72)
	at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
	at org.hibernate.id.insert.AbstractSelectingDelegate.performInsert(AbstractSelectingDelegate.java:40)
	at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2108)
	at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2588)
	at org.hibernate.action.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:48)
	at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:248)
	at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:290)
	at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:180)
	at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:108)
	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:186)
	at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33)
	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:175)
	at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27)
	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)
	at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:535)
	at org.hibernate.impl.SessionImpl.save(SessionImpl.java:523)
	at org.hibernate.impl.SessionImpl.save(SessionImpl.java:519)
	at org.springframework.orm.hibernate3.HibernateTemplate$12.doInHibernate(HibernateTemplate.java:625)
	at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:362)
	at org.springframework.orm.hibernate3.HibernateTemplate.save(HibernateTemplate.java:622)
	at com.dayspringTech.jgabler.hypersonicHibernateSpringExample.util.LibraryMaker.create(LibraryMaker.java:30)
	at com.dayspringTech.jgabler.hypersonicHibernateSpringExample.test.LibraryTest.testLibraryMaker(LibraryTest.java:27)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at junit.framework.TestCase.runTest(TestCase.java:154)
	at junit.framework.TestCase.runBare(TestCase.java:127)
	at junit.framework.TestResult$1.protect(TestResult.java:106)
	at junit.framework.TestResult.runProtected(TestResult.java:124)
	at junit.framework.TestResult.run(TestResult.java:109)
	at junit.framework.TestCase.run(TestCase.java:118)
	at junit.framework.TestSuite.runTest(TestSuite.java:208)
	at junit.framework.TestSuite.run(TestSuite.java:203)
	at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:128)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused by: java.sql.SQLException: Integrity constraint violation - no parent FK1FAF099AC3B28 table: READER in statement [insert into Book (book_id, title, dewey, category_id, reader_id) values (null, ?, ?, ?, ?)]
	at org.hsqldb.jdbc.Util.throwError(Unknown Source)
	at org.hsqldb.jdbc.jdbcPreparedStatement.executeUpdate(Unknown Source)
	at org.apache.commons.dbcp.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:101)
	at org.hibernate.id.insert.AbstractSelectingDelegate.performInsert(AbstractSelectingDelegate.java:33)
	... 38 more