[jbosstools-issues] [JBoss JIRA] (JBIDE-23149) Reverse engineering strategy cannot be set to custom class if generation target is Hibernate 5.x

[Antal Varga (JIRA)]

Antal Varga created JBIDE-23149:
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             Summary: Reverse engineering strategy cannot be set to custom class if generation target is Hibernate 5.x
                 Key: JBIDE-23149
                 URL: https://issues.jboss.org/browse/JBIDE-23149
             Project: Tools (JBoss Tools)
          Issue Type: Bug
          Components: hibernate
    Affects Versions: 4.4.0.Final
            Reporter: Antal Varga


The reason for that is the change in ServiceImpl.java in org.jboss.tools.hibernate.runtime.v_5_0*.jar or later.


private Object newReverseEngineeringStrategy(String className, Object delegate) {...}


tries to load class using the class loader of the delegate object at first which is *org.hibernate.cfg.reveng.OverrideRepository* and resides in *hibernate-tools-x.yy.jar*.


The main problem is that while in case of the earlier Hibernate generation targets (e.g. 4.3) the reverse engineering strategy class loading was done by *org.hibernate.util.xpl.ReflectHelper* (and worked well), this option

happens only as a fallback case now *BUT this only happens if the constructor has not been found* (only NoSuchMethodException is caught).

Therefore a reverse engineering strategy can only be loaded if it is loaded by the classloader of the hibernate-tools-x.yy.jar or one of its parent loaders (OSGI can make the things more complicated).


*I think the solution would be to catch ClassNotFoundException as well and try to load reverse engineering class using ReflectHelper in this case.*



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