[jira] [Created] (DELTASPIKE-1183) NPE in proxy handler with concurrent requests

["John D. Ament (JIRA)" <ji...@apache.org>]

John D. Ament created DELTASPIKE-1183:
-----------------------------------------

             Summary: NPE in proxy handler with concurrent requests
                 Key: DELTASPIKE-1183
                 URL: https://issues.apache.org/jira/browse/DELTASPIKE-1183
             Project: DeltaSpike
          Issue Type: Bug
            Reporter: John D. Ament
            Assignee: John D. Ament
             Fix For: 1.7.1


The following test will fail, with proxies in play:

{code}
import static java.lang.annotation.RetentionPolicy.RUNTIME; import static java.util.concurrent.TimeUnit.SECONDS;  import java.lang.annotation.Retention; import java.lang.reflect.InvocationHandler; import java.lang.reflect.Method; import java.util.ArrayList; import java.util.List; import java.util.concurrent.ExecutorService; import java.util.concurrent.Future; import java.util.concurrent.RejectedExecutionHandler; import java.util.concurrent.SynchronousQueue; import java.util.concurrent.ThreadPoolExecutor;  import javax.annotation.Resource; import javax.enterprise.concurrent.ManagedThreadFactory; import javax.inject.Inject;  import org.apache.deltaspike.core.api.provider.BeanManagerProvider; import org.apache.deltaspike.partialbean.api.PartialBeanBinding; import org.apache.deltaspike.partialbean.impl.PartialBeanBindingExtension; import org.apache.deltaspike.proxy.impl.invocation.DelegateManualInvocationHandler; import org.apache.deltaspike.proxy.impl.invocation.InterceptorLookup; import org.apache.openejb.junit.ApplicationComposerRule; import org.apache.openejb.testing.CdiExtensions; import org.apache.openejb.testing.Module; import org.junit.Rule; import org.junit.Test; import org.junit.rules.TestRule;  public @CdiExtensions({BeanManagerProvider.class, PartialBeanBindingExtension.class}) class ConcurrencyBugTest {      public final @Rule TestRule composer = new ApplicationComposerRule(this);      public @PartialBeanBinding @Retention(RUNTIME) @interface MyPartialBeanBinding {     }      public @MyPartialBeanBinding interface PartialBean {          String getValue();     }      public static @MyPartialBeanBinding class MyPartialBeanHandler implements InvocationHandler {          public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {             return method.getName();         }     }          private class BlockPolicy implements RejectedExecutionHandler {          public @Override void rejectedExecution(Runnable runnable, ThreadPoolExecutor executor) {             try {                 executor.getQueue().put(runnable);             } catch (InterruptedException interruptedException) {                 Thread.currentThread().interrupt();             }         }     }      public @Module Class<?>[] classes() {         return new Class<?>[] { DelegateManualInvocationHandler.class, InterceptorLookup.class, PartialBean.class, MyPartialBeanHandler.class, MyPartialBeanHandler.class };     }      private @Resource ManagedThreadFactory threadFactory;     private @Inject PartialBean bean;      public @Test void test() throws Exception {         ExecutorService executor = new ThreadPoolExecutor(5, 10, 60, SECONDS, new SynchronousQueue<>(), this.threadFactory, new BlockPolicy());         List<Future<String>> results = new ArrayList<>(100);         for (int i = 0; i < 100; i++) {             results.add(executor.submit(this.bean::getValue));         }         executor.shutdown();         executor.awaitTermination(60, SECONDS);         for (int i = 0; i < 100; i++) {             results.get(i).get();         }     } }   java.util.concurrent.ExecutionException: java.lang.NullPointerException     at java.util.concurrent.FutureTask.report(Unknown Source)     at java.util.concurrent.FutureTask.get(Unknown Source)     at be.fgov.sfpd.attestation.ConcurrencyBugTest.test(ConcurrencyBugTest.java:79)     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)     at java.lang.reflect.Method.invoke(Unknown Source)     at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)     at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)     at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)     at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)     at org.apache.openejb.junit.DeployApplication$1.call(DeployApplication.java:44)     at org.apache.openejb.junit.DeployApplication$1.call(DeployApplication.java:40)     at org.apache.openejb.testing.ApplicationComposers.evaluate(ApplicationComposers.java:1067)     at org.apache.openejb.junit.DeployApplication.evaluate(DeployApplication.java:40)     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.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)     at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) Caused by: java.lang.NullPointerException     at org.apache.deltaspike.proxy.impl.invocation.AbstractManualInvocationHandler.invoke(AbstractManualInvocationHandler.java:38)     at org.apache.deltaspike.proxy.impl.invocation.DelegateManualInvocationHandler$$OwbNormalScopeProxy0.invoke(org/apache/deltaspike/proxy/impl/invocation/DelegateManualInvocationHandler.java)     at org.apache.deltaspike.proxy.impl.invocation.DelegateManualInvocationHandler.staticInvoke(DelegateManualInvocationHandler.java:40)     at be.fgov.sfpd.attestation.ConcurrencyBugTest$PartialBean$$DSPartialBeanProxy.getValue(Unknown Source)     at java.util.concurrent.FutureTask.run(Unknown Source)     at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)     at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)     at java.lang.Thread.run(Unknown Source)
{code}



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