[jboss-user] [EJB/JBoss] - Using Properties in Stateless bean causes NuzllpointerExcept

[sunstarnova]

Hi, I use Properties and get an Error when calling setProperty(Sring, String) or put in the following stateless Bean method. The bean itself is deployed and up and running in JBoss 4.0.3 CR2 EJB3.0.

  | 	private Session getSession(String smtpServer){
  | 		if (session == null){
  | 			//Properties props = new Properties();
  | 			Properties props = System.getProperties();
  | 			System.out.println(">>>>>>     Properties = " + props);
  | 			props.setProperty("mail.smtp.host", smtpServer);
  | 

When calling SetProperty I get the following exception. Anyway if I use new Properties() using System.out.println() I will get printed probs={} in the console or when using System.getProperties() probs={JBOS...Path:.....} so it seems the property Objects are fine. When I call the class as Pojo everything wors fine!

Exception:

  | Exception in thread "main" javax.ejb.EJBException: java.lang.NullPointerException
  | 	at org.jboss.ejb3.tx.Ejb3TxPolicy.handleExceptionInOurTx(Ejb3TxPolicy.java:69)
  | 	at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:83)
  | 	at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:192)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
  | 	at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
  | 	at org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.java:81)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
  | 	at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:78)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
  | 	at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
  | 	at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
  | 	at org.jboss.ejb3.stateful.StatefulContainer.dynamicInvoke(StatefulContainer.java:308)
  | 	at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:104)
  | 	at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82)
  | 	at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828)
  | 	at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:681)
  | 	at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:358)
  | 	at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:412)
  | 	at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:239)
  | 	at org.jboss.remoting.RemoteClientInvoker.invoke(RemoteClientInvoker.java:190)
  | 	at org.jboss.remoting.Client.invoke(Client.java:525)
  | 	at org.jboss.remoting.Client.invoke(Client.java:488)
  | 	at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:55)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
  | 	at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPropagationInterceptor.java:61)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
  | 	at org.jboss.aspects.security.SecurityClientInterceptor.invoke(SecurityClientInterceptor.java:55)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
  | 	at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:65)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
  | 	at org.jboss.ejb3.stateful.StatefulRemoteProxy.invoke(StatefulRemoteProxy.java:133)
  | 	at $Proxy1.sendTextMail(Unknown Source)
  | 	at com.teec.ios.core.client.MailClient.sendTextMail(MailClient.java:44)
  | 	at com.teec.ios.core.client.MailClient.main(MailClient.java:88)
  | Caused by: java.lang.NullPointerException
  | 	at java.util.Hashtable.put(Unknown Source)
  | 	at org.jboss.util.property.PropertyMap.put(PropertyMap.java:182)
  | 	at org.jboss.util.property.PropertyMap.setProperty(PropertyMap.java:615)
  | 	at com.teec.ios.core.ejb.session.MailManagerBean.getSession(MailManagerBean.java:210)
  | 	at com.teec.ios.core.ejb.session.MailManagerBean.sendTextMail(MailManagerBean.java:99)
  | 	at com.teec.ios.core.ejb.session.MailManagerBean.sendTextMail(MailManagerBean.java:82)
  | 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  | 	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  | 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  | 	at java.lang.reflect.Method.invoke(Unknown Source)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:109)
  | 	at org.jboss.ejb3.entity.ExtendedPersistenceContextPropagationInterceptor.invoke(ExtendedPersistenceContextPropagationInterceptor.java:57)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
  | 	at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
  | 	at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
  | 	at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79)
  | 	at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:192)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
  | 	at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
  | 	at org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.java:81)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
  | 	at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:78)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
  | 	at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
  | 	at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
  | 	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98)
  | 	at org.jboss.ejb3.stateful.StatefulContainer.dynamicInvoke(StatefulContainer.java:308)
  | 	at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:104)
  | 	at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82)
  | 	at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828)
  | 	at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:681)
  | 	at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:358)
  | 	at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:412)
  | 	at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:239)
  | 

Thanks for your help!

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