Unit test with hibernate

[Hao Chen]

Hi guys, 

I am a newbie to thread weaver. Hope i can get some help from here.

The question is regarding writing some multithread unit tests for my hibernate based api. I was using HSQL (in mem database) as the way i tested for hibernate. It worked perfect until i wanted to write some mulithread unitests.

I tried to do some setup in @ThreadedBefore 

AnnotationSessionFactoryBean factoryBean = new AnnotationSessionFactoryBean();

factoryBean.setHibernateProperties(getTestConfig());

String[] packagesToScan = {"com.blablab"};

factoryBean.setPackagesToScan(packagesToScan);

factoryBean.afterPropertiesSet();

sessionFactory = (SessionFactory) factoryBean.getObject();

It failed with errors,

Caused by: java.lang.NullPointerException

at com.google.testing.instrumentation.InstrumentedClassLoader.loadClassData(InstrumentedClassLoader.java:152)

at com.google.testing.instrumentation.InstrumentedClassLoader.findClass(InstrumentedClassLoader.java:137)

at com.google.testing.instrumentation.InstrumentedClassLoader.loadClass(InstrumentedClassLoader.java:113)

at java.lang.ClassLoader.loadClass(ClassLoader.java:358)

at java.lang.Class.forName0(Native Method)

at java.lang.Class.forName(Class.java:278)

at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:170)

at org.hibernate.cfg.Configuration.applyHibernateValidatorLegacyConstraintsOnDDL(Configuration.java:1663)

at org.hibernate.cfg.Configuration.applyConstraintsToDDL(Configuration.java:1653)

at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1445)

at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1375)

at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:717)

at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:188)

at com.repository.TestSessionHelper.getSessionFactory(TestSessionHelper.java:20)

I aslo posted some code in 

http://stackoverflow.com/questions/31015368/thread-weaver-with-hibernate-unit-testing

Any help would be appreciated.

Thanks,

Hao

[Alasdair Mackintosh]

Answered on stackoverflow.