[jboss-remoting-issues] [JBoss JIRA] Commented: (JBREM-1043) CLONE -Fix PortUtil.getRandomStartingPort()

Ronnie Govender (JIRA) jira-events at lists.jboss.org
Thu Oct 9 16:04:20 EDT 2008 

    [ https://jira.jboss.org/jira/browse/JBREM-1043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12433297#action_12433297 ] 

Ronnie Govender commented on JBREM-1043:
----------------------------------------

This issue still exists in jboss-embedded-all.jar in embedded-jboss-beta3.SP2. 
I attempted deploying within Tomcat on an iSeries and it failed exactly as above.

> CLONE -Fix PortUtil.getRandomStartingPort()
> -------------------------------------------
>
>                 Key: JBREM-1043
>                 URL: https://jira.jboss.org/jira/browse/JBREM-1043
>             Project: JBoss Remoting
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 2.2.2.SP7
>            Reporter: Ronnie Govender
>            Assignee: Ron Sigal
>             Fix For: 2.2.2.SP8
>
>
> From support case 176016:
> Description:
> While starting JBoss using the "all" configuration we get the following error message: "Problem starting service jboss.messaging:service=Connector,transport=bisocket".  Followed in the stack trace by the error: "Caused by: java.lang.NumberFormatException: For input string: "add46e5e"".
> The JBoss messaging service does not start which prevents other JBoss services from being deployed.
> Walking through the following stack trace:
> 2008-04-16 09:29:46,160 WARN  [org.jboss.system.ServiceController] Problem starting service jboss.messaging:service=Connector,transport=bisocket
> java.lang.ExceptionInInitializerError
> at org.jboss.remoting.transport.bisocket.BisocketServerInvoker.start(BisocketS erverInvoker.java:182)
> at org.jboss.remoting.transport.Connector.start(Connector.java:322)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:3 9)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImp l.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.jav a:155)
> at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
> at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
> at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:2 64)
> at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
> at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.ja va:995)
> at $Proxy0.start(Unknown Source)
> at org.jboss.system.ServiceController.start(ServiceController.java:417)
> at sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImp l.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.jav a:155)
> at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
> at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
> at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:2 64)
> at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
> at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
> at $Proxy4.start(Unknown Source)
> at org.jboss.deployment.SARDeployer.start(SARDeployer.java:302)
> at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)
> at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1015)
> at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)
> at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:3 9)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImp l.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.jav a:155)
> at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
> at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.jav a:133)
> at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
> at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOp erationInterceptor.java:142)
> at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
> at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:2 64)
> at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
> at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
> at $Proxy9.deploy(Unknown Source)
> at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScann er.java:421)
> at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner .java:634)
> at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan (AbstractDeploymentScanner.java:263)
> at org.jboss.deployment.scanner.AbstractDeploymentScanner.startService(Abstrac tDeploymentScanner.java:336)
> at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport .java:289)
> at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSup port.java:245)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:3 9)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImp l.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.jav a:155)
> at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
> at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
> at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:2 64)
> at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
> at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.ja va:978)
> at $Proxy0.start(Unknown Source)
> at org.jboss.system.ServiceController.start(ServiceController.java:417)
> at sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImp l.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.jav a:155)
> at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
> at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
> at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:2 64)
> at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
> at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
> at $Proxy4.start(Unknown Source)
> at org.jboss.deployment.SARDeployer.start(SARDeployer.java:302)
> at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)
> at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)
> at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782)
> at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:766)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:3 9)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImp l.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.jav a:155)
> at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
> at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.jav a:133)
> at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
> at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOp erationInterceptor.java:142)
> at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
> at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:2 64)
> at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
> at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
> at $Proxy5.deploy(Unknown Source)
> at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:533)
> at org.jboss.system.server.ServerImpl.start(ServerImpl.java:399)
> at org.jboss.Main.boot(Main.java:200)
> at org.jboss.Main$1.run(Main.java:508)
> at java.lang.Thread.run(Thread.java:602)
> Caused by: java.lang.NumberFormatException: For input string: "add46e5e"
> at java.lang.Throwable.<init>(Throwable.java:196)
> at java.lang.Exception.<init>(Exception.java:41)
> at java.lang.RuntimeException.<init>(RuntimeException.java:43)
> at java.lang.IllegalArgumentException.<init>(IllegalArgumentException.ja va:36)
> at java.lang.NumberFormatException.<init>(NumberFormatException.java:38)
> at java.lang.NumberFormatException.forInputString(NumberFormatException.java:4 8)
> at java.lang.Integer.parseInt(Integer.java:459)
> at org.jboss.remoting.transport.PortUtil.getRandomStartingPort(PortUtil.java:1 47)
> at org.jboss.remoting.transport.PortUtil.<clinit>(PortUtil.java:49)
> Gets us to the method "getRandomStartingPort" in the class "PortUtil" in the package "org.jboss.remoting.transport".   Which is part of the "jboss-remoting.jar" in the directory jboss430/thirdparty/jboss/remoting/lib.
> The existing code that is failing is:
>   public static int getRandomStartingPort()
>   {
>      Object o = new Object();
>      String os = o.toString();
>      os = os.substring(17);
>      int n = Integer.parseInt(os, 16);
>      int p = Math.abs(new SecureRandom(String.valueOf(System.currentTimeMillis() + n).getBytes()).nextInt(2000)) + 2000;
>      return p;
>   }
> The issue with this code is that, what an object returns for toString() is platform- and JVM-specific and never guaranteed to be parseable as an integer. There's also no guarantee that toString() will produce anything that's at least 17 characters long. The only time the output of toString() is defined is for instances of java.lang.Object; pretty much all classes override that method. Besides the hard-coding of the 17 in the code is rather naive, converting the hex string suffers from the fact that it may be representing a negative number. The parseInt() method allows only 31 bits of magnitude for the string, since the sign must be given externally (leading '+' or '-', with '+' being the default).  In many JVM implementations, the hashCode() method for non-String objects returns a value based on the allocation address of the object. For 32-bit systems, such an address is almost always under the 2 GB boundary, and therefore positive. For architectures that use more than 32 bits for an address (including the Unisys OS 2200), there's no guarantee of any particular sign of the result.
> We propose that the code be changed to the following:
>   public static int getRandomStartingPort()
>   {
>      int n = new Object().hashCode();
>      int p = Math.abs(new SecureRandom(String.valueOf(System.currentTimeMillis() + n).getBytes()).nextInt(2000)) + 2000;
>      return p;
>   }

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