title: java.net.SocketException: Permission denied: listen failed with Gradle
body: <p>On my console:
  my server is running fine with <code>gradle run</code>, but when I go into my website\trunk and try to run <code>gradlew appRun</code>, I get the following errors.  </p>
  
  <pre><code>java.net.SocketException: Permission denied: listen failed
  </code></pre>
  
  <p>I have checked my firewall settings, and also disabled it.  Unfortunately, it did not make a difference.</p>
  
  <p>I also manually installed gradle, but I'm still getting this exception.   What do you think could be the problem?</p>
  
  <p>Here's the full console output including the error:</p>
  
  <p>From running <strong><code>gradlew appRun</code>:</strong></p>
  
  <pre><code>&gt; C:\Users\IJ\website\trunk&gt;**gradlew appRun**
  :librideabike:compileJava UP-TO-DATE
  :librideabike:processResources UP-TO-DATE
  :librideabike:classes UP-TO-DATE
  :librideabike:jar UP-TO-DATE
  :compileJava UP-TO-DATE
  :processResources UP-TO-DATE
  :classes UP-TO-DATE
  :prepareInplaceWebAppClasses UP-TO-DATE
  :prepareInplaceWebAppFolder UP-TO-DATE
  :prepareInplaceWebApp UP-TO-DATE
  :appRun FAILED
  
  FAILURE: Build failed with an exception.
  
  *** What went wrong:
  Execution failed for task ':appRun'.
  &gt; java.util.concurrent.ExecutionException: java.net.SocketException: Permission denied: listen failed**
  
  * Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
  
  BUILD FAILED
  
  Total time: 5.578 secs
  </code></pre>
  
  <p>This is from <strong><code>gradlew appRun --stacktrace</code>:</strong></p>
  
  <pre><code>&gt; C:\Users\IJ\website\trunk&gt;**gradlew appRun --stacktrace**
  :librideabike:compileJava UP-TO-DATE
  :librideabike:processResources UP-TO-DATE
  :librideabike:classes UP-TO-DATE
  :librideabike:jar UP-TO-DATE
  :compileJava UP-TO-DATE
  :processResources UP-TO-DATE
  :classes UP-TO-DATE
  :prepareInplaceWebAppClasses UP-TO-DATE
  :prepareInplaceWebAppFolder UP-TO-DATE
  :prepareInplaceWebApp UP-TO-DATE
  :appRun FAILED
  
  FAILURE: Build failed with an exception.
  
  *** What went wrong:
  Execution failed for task ':appRun'.
  &gt; java.util.concurrent.ExecutionException: java.net.SocketException: Permission denied: listen failed**
  
  * Try:
  Run with --info or --debug option to get more log output.
  
  * Exception is:
  org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':appRun'.
          at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:69)
          at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:46)
          at org.gradle.api.internal.tasks.execution.PostExecutionAnalysisTaskExecuter.execute(PostExecutionAnalysisTaskExecuter.java:35)
          at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:64)
          at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
          at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:42)
          at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52)
          at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:53)
          at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
          at org.gradle.api.internal.AbstractTask.executeWithoutThrowingTaskFailure(AbstractTask.java:306)
          at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.executeTask(AbstractTaskPlanExecutor.java:79)
          at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:63)
          at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:51)
          at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:23)
          at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:88)
          at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:29)
          at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:62)
          at org.gradle.execution.DefaultBuildExecuter.access$200(DefaultBuildExecuter.java:23)
          at org.gradle.execution.DefaultBuildExecuter$2.proceed(DefaultBuildExecuter.java:68)
          at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32)
          at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:62)
          at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:55)
          at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:149)
          at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:106)
          at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:86)
          at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:80)
          at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:33)
          at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:24)
          at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:36)
          at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:26)
          at org.gradle.launcher.cli.RunBuildAction.run(RunBuildAction.java:51)
          at org.gradle.internal.Actions$RunnableActionAdapter.execute(Actions.java:169)
          at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:237)
          at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:210)
          at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:35)
          at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:24)
          at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:206)
          at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:169)
          at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:33)
          at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:22)
          at org.gradle.launcher.Main.doAction(Main.java:33)
          at org.gradle.launcher.bootstrap.EntryPoint.run(EntryPoint.java:45)
          at org.gradle.launcher.bootstrap.ProcessBootstrap.runNoExit(ProcessBootstrap.java:54)
          at org.gradle.launcher.bootstrap.ProcessBootstrap.run(ProcessBootstrap.java:35)
          at org.gradle.launcher.GradleMain.main(GradleMain.java:23)
          at org.gradle.wrapper.BootstrapMainStarter.start(BootstrapMainStarter.java:30)
          at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:127)
          at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:61)
  Caused by: org.gradle.internal.UncheckedException: java.util.concurrent.ExecutionException: java.net.SocketException: Permission denied: listen failed
          at org.gradle.internal.UncheckedException.throwAsUncheckedException(UncheckedException.java:39)
          at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:66)
          at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.doExecute(AnnotationProcessingTaskFactory.java:218)
          at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:211)
          at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:200)
          at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:585)
          at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:568)
          at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:80)
          at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:61)
          ... 47 more
  Caused by: java.util.concurrent.ExecutionException: java.net.SocketException: Permission denied: listen failed
          at java_util_concurrent_Future$get.call(Unknown Source)
          at org.akhikhl.gretty.LauncherBase.launchThread(LauncherBase.groovy:230)
          at org.akhikhl.gretty.LauncherBase.launch(LauncherBase.groovy:71)
          at org.akhikhl.gretty.Launcher$launch.call(Unknown Source)
          at org.akhikhl.gretty.StartBaseTask.action(StartBaseTask.groovy:40)
          at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:63)
          ... 54 more
  Caused by: java.net.SocketException: Permission denied: listen failed
          at org.akhikhl.gretty.ServiceProtocol.readMessage(ServiceProtocol.groovy:15)
          at org.akhikhl.gretty.ServiceProtocol$readMessage.call(Unknown Source)
          at org.akhikhl.gretty.LauncherBase$_launchThread_closure4$_closure9.doCall(LauncherBase.groovy:157)
          at org.akhikhl.gretty.LauncherBase$_launchThread_closure4$_closure9.doCall(LauncherBase.groovy)
  
  
  BUILD FAILED
  
  Total time: 5.907 secs
  </code></pre>