NPE in SetDefaultLocalBusinessInterfaceProcessor.process() -> Class.forName()

21:18:04,734 ERROR [AbstractKernelController] Error installing to PostClassLoader: name=vfszip:/home/ondra/work/perf-eap/EAP-501/server/default/deploy/ejb3-calculator-001.jar/ state=ClassLoader mode=Manual requiredState=PostClassLoader
org.jboss.deployers.spi.DeploymentException: Error during deploy: vfszip:/home/ondra/work/perf-eap/EAP-501/server/default/deploy/ejb3-calculator-001.jar/
        at org.jboss.deployers.spi.DeploymentException.rethrowAsDeploymentException(DeploymentException.java:49)
        at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:177)
        at org.jboss.deployers.plugins.deployers.DeployersImpl.doDeploy(DeployersImpl.java:1440)
        at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1158)
        at org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:1099)
        at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)
        at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1633)
        at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:935)
        at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1083)
        at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:985)
        at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:823)
        at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553)
        at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:782)
        at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:702)
        at org.jboss.system.server.profileservice.repository.MainDeployerAdapter.process(MainDeployerAdapter.java:117)
        at org.jboss.system.server.profileservice.hotdeploy.HDScanner.scan(HDScanner.java:409)
        at org.jboss.system.server.profileservice.hotdeploy.HDScanner.run(HDScanner.java:294)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
        at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
        at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.NullPointerException
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:247)
        at org.jboss.metadata.process.processor.ejb.jboss.SetDefaultLocalBusinessInterfaceProcessor.process(SetDefaultLocalBusinessInterfaceProcessor.java:114)
        at org.jboss.metadata.process.chain.ejb.jboss.JBossMetaDataProcessorChain.process(JBossMetaDataProcessorChain.java:115)
        at org.jboss.ejb3.deployers.Ejb3MetadataProcessingDeployer.deploy(Ejb3MetadataProcessingDeployer.java:115)
        at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:171)
        ... 24 more
21:18:04,735 WARN  [HDScanner] Failed to process changes
org.jboss.deployers.client.spi.IncompleteDeploymentException: Summary of incomplete deployments (SEE PREVIOUS ERRORS FOR DETAILS):

*** DEPLOYMENTS IN ERROR: Name -> Error

vfszip:/home/ondra/work/perf-eap/EAP-501/server/default/deploy/ejb3-calculator-001.jar/ -> org.jboss.deployers.spi.DeploymentException: Error during deploy: vfszip:/home/ondra/work/perf-eap/EAP-501/server/default/deploy/ejb3-calculator-001.jar/


DEPLOYMENTS IN ERROR:
  Deployment "vfszip:/home/ondra/work/perf-eap/EAP-501/server/default/deploy/ejb3-calculator-001.jar/" is in error due to the following reason(s): java.lang.NullPointerException

        at org.jboss.deployers.plugins.deployers.DeployersImpl.checkComplete(DeployersImpl.java:994)
        at org.jboss.deployers.plugins.deployers.DeployersImpl.checkComplete(DeployersImpl.java:940)
        at org.jboss.deployers.plugins.main.MainDeployerImpl.checkComplete(MainDeployerImpl.java:873)
        at org.jboss.system.server.profileservice.repository.MainDeployerAdapter.checkComplete(MainDeployerAdapter.java:128)
        at org.jboss.system.server.profileservice.hotdeploy.HDScanner.scan(HDScanner.java:416)
        at org.jboss.system.server.profileservice.hotdeploy.HDScanner.run(HDScanner.java:294)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
        at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
        at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:619)