[jboss-osgi-issues] [JBoss JIRA] Work started: (JBOSGI-479) Race condition when registering services in multiple threads

Race condition when registering services in multiple threads ------------------------------------------------------------ Key: JBOSGI-479 URL: https://issues.jboss.org/browse/JBOSGI-479 Project: JBoss OSGi Issue Type: Bug Security Level: Public(Everyone can see) Reporter: David Bosschaert Assignee: David Bosschaert When registering multiple services with the same service name a race condition occurs. This is exposed when running the Service Performance tests (e.g. org.jboss.osgi.test.performance.service.arq.Service100TestCase). The problem boils down to the fact that two threads race to obtain a service controller for the same name. One of them wins, the other fails with this exception: org.jboss.msc.service.DuplicateServiceException: Service jbosgi.service."org.jboss.osgi.test.performance.service.SvcCls1" is already registered at org.jboss.msc.service.ServiceRegistrationImpl.setInstance(ServiceRegistrationImpl.java:154) at org.jboss.msc.service.ServiceControllerImpl.startInstallation(ServiceControllerImpl.java:226) at org.jboss.msc.service.ServiceContainerImpl.install(ServiceContainerImpl.java:560) at org.jboss.msc.service.ServiceTargetImpl.install(ServiceTargetImpl.java:201) at org.jboss.msc.service.ServiceControllerImpl$ChildServiceTarget.install(ServiceControllerImpl.java:2194) at org.jboss.msc.service.ServiceBuilderImpl.install(ServiceBuilderImpl.java:307) at org.jboss.osgi.framework.internal.ServiceManagerPlugin.registerService(ServiceManagerPlugin.java:180) at org.jboss.osgi.framework.internal.AbstractBundleContext.registerService(AbstractBundleContext.java:305) at org.jboss.osgi.framework.internal.AbstractBundleContext.registerService(AbstractBundleContext.java:297) at org.jboss.osgi.test.performance.service.CreateAndLookupBenchmark.runThread(CreateAndLookupBenchmark.java:79) at org.jboss.osgi.test.performance.service.CreateAndLookupBenchmark.runThread(CreateAndLookupBenchmark.java:41) at org.jboss.osgi.test.performance.AbstractThreadedBenchmark$1.run(AbstractThreadedBenchmark.java:91) at java.lang.Thread.run(Thread.java:680)