[GSS](7.1.0) NPE when MBean does not have no-arg constructor ------------------------------------------------------------ Key: WFLY-8458 URL: https://issues.jboss.org/browse/WFLY-8458 Project: WildFly Issue Type: Bug Components: JMX, Server Affects Versions: 11.0.0.Alpha1 Reporter: Chao Wang Assignee: Chao Wang NPE when MBean does not have no-arg constructor, it should log an error message indicating the issue rather than NPE {code} 15:05:48,605 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-8) MSC000001: Failed to start service jboss.deployment.unit."jboss-helloworld-dynamicmbean-helloworld-mbean-service.sar".INSTALL: org.jboss.msc.service.StartException in service jboss.deployment.unit."jboss-helloworld-dynamicmbean-helloworld-mbean-service.sar".INSTALL: WFLYSRV0153: Failed to process phase INSTALL of deployment "jboss-helloworld-dynamicmbean-helloworld-mbean-service.sar" at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:172) at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:2032) at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1955) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.IllegalArgumentException: WFLYSAR0004: Class not instantiated at org.jboss.as.service.ReflectionUtils.newInstance(ReflectionUtils.java:133) at org.jboss.as.service.ParsedServiceDeploymentProcessor.newInstance(ParsedServiceDeploymentProcessor.java:283) at org.jboss.as.service.ParsedServiceDeploymentProcessor.addServices(ParsedServiceDeploymentProcessor.java:129) at org.jboss.as.service.ParsedServiceDeploymentProcessor.deploy(ParsedServiceDeploymentProcessor.java:118) at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:165) ... 5 more Caused by: java.lang.NullPointerException at org.jboss.as.service.ReflectionUtils.newInstance(ReflectionUtils.java:131) ... 9 more {code}