Demo jpa-cdi-testing does not work on java 14

[Bukama]

As I'm trying to setup our projects to make JPA tests possible without using Arquillian (which is a pain due long deployment times on WAS 9) I found @gunnarmorling demo jpa-cdi-testing project which seems to do exactly this.

So I just cloned it, importet it into IntelliJ and executed the tests. But both fail with this error message:

2020-03-21 20:34:50 INFO  Version:148 - WELD-000900: 3.0.5 (Final)

org.jboss.weld.exceptions.WeldException: WELD-001524: Unable to load proxy class for bean Built-in Bean [javax.transaction.UserTransaction] with qualifiers [@Default] with class interface javax.transaction.UserTransaction using classloader jdk.internal.loader.ClassLoaders$AppClassLoader@2626b418

	at org.jboss.weld.bean.proxy.ProxyFactory.getProxyClass(ProxyFactory.java:370)
	at org.jboss.weld.bean.proxy.ProxyFactory.run(ProxyFactory.java:324)
	at org.jboss.weld.bean.proxy.ProxyFactory.create(ProxyFactory.java:316)
	at org.jboss.weld.bean.builtin.ee.AbstractEEBean.<init>(AbstractEEBean.java:36)
	at org.jboss.weld.module.jta.UserTransactionBean.<init>(UserTransactionBean.java:52)
	at org.jboss.weld.module.jta.WeldTransactionsModule.preBeanRegistration(WeldTransactionsModule.java:46)
	at org.jboss.weld.module.WeldModules.preBeanRegistration(WeldModules.java:158)
	at org.jboss.weld.bootstrap.BeanDeployment.createBeans(BeanDeployment.java:224)
	at org.jboss.weld.bootstrap.WeldStartup.deployBeans(WeldStartup.java:432)
	at org.jboss.weld.bootstrap.WeldBootstrap.deployBeans(WeldBootstrap.java:86)
	at org.jboss.weld.environment.se.Weld.initialize(Weld.java:800)
	at org.jboss.weld.junit.AbstractWeldInitiator.initWeldContainer(AbstractWeldInitiator.java:495)
	at org.jboss.weld.junit4.WeldInitiator.access$300(WeldInitiator.java:90)
	at org.jboss.weld.junit4.WeldInitiator$1.evaluate(WeldInitiator.java:226)
	at org.junit.rules.RunRules.evaluate(RunRules.java:20)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	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$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
	at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
	at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230)
	at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)
Caused by: java.lang.Error: java.lang.NoSuchFieldException: override
	at org.jboss.classfilewriter.ClassFile$1.run(ClassFile.java:394)
	at org.jboss.classfilewriter.ClassFile$1.run(ClassFile.java:385)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:551)
	at org.jboss.classfilewriter.ClassFile.<clinit>(ClassFile.java:385)
	at org.jboss.weld.bean.proxy.ProxyFactory.newClassFile(ProxyFactory.java:476)
	at org.jboss.weld.bean.proxy.ProxyFactory.createProxyClass(ProxyFactory.java:436)
	at org.jboss.weld.bean.proxy.ProxyFactory.getProxyClass(ProxyFactory.java:362)
	... 28 more
Caused by: java.lang.NoSuchFieldException: override
	at java.base/java.lang.Class.getDeclaredField(Class.java:2417)
	at org.jboss.classfilewriter.ClassFile$1.run(ClassFile.java:392)
	... 34 more


Process finished with exit code -1

Would really see this demo working again so I can try to adopt things of it for our scenario.

[gunnarmorling]

That's a compatibility issue with Java versions, see wildfly/jboss-classfilewriter#18. This was implemented based on JDK 8 back then, dependencies would need updating for newer JDKs. Perhaps you could send a PR for doing so?

[Bukama]

Ah thanks! After switching to JDK 8 the demo project works fine.
Will have a look if I can manage to update the dependencies. Could take some time as I'm still struggeling (understanding) with all this WELD stuff. But I'll keep in mind!