java.lang.NullPointerException error seen when testing Email or SMTP settings

Products

• CA Automic Applications Manager (AM)

Issue/Introduction

After entering SMTP values (host, port, etc), selecting the 'Test' button, results in the below error being displayed:

java.rmi.RemoteException: example.rmi.hostIP:RMIRegistryPort:sendEmail; nested exception is:

      java.lang.NullPointerException
      at com.appworx.client.screen.util.ClientSocketManager.sendRequest1(ClientSocketManager.java:310)
      at com.appworx.shared.iface.IRmiServer_Stub.sendEmail(IRmiServer_Stub.java:1214)
      at com.appworx.client.screen.agentmgr.B$1.actionPerformed(EmailPanel.java:182)
           ...
      at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
      at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
Caused by: java.lang.NullPointerException
      at com.appworx.shared.code.email.Email.A(Email.java:365)
      at com.appworx.server.data.AxRmiServer.sendEmail(AxRmiServer.java:3455)
           ...
      at com.uc4.be.threading.AbstractWorker.run(AbstractWorker.java:367)
      at java.lang.Thread.run(Thread.java:750)

Environment

Applications Manager all versions

Resolution

A more detailed error can be found in the $AW_HOME/log/RmiServer<timestamp>.log covering time of issue. 

It is best to enable RmiServer debug, reproduce the issue by selecting the Test button, and then reviewing the latest RmiServer<timestamp>.log for the latest "AwE-" error.

The most common error message found in the RmiServer log is:

ErrorMsg: AwE-5123 Email error
Details: {mail.smtp.port=25, mail.smtp.writetimeout=180000, mail.smtp.host=example.smtp.hostIP, mail.smtp.timeout=180000, mail.smtp.connectiontimeout=30000, [email protected]}
com.sun.mail.util.MailConnectException: Couldn't connect to host, port: example.smtp.hostIP, 25; timeout 30000;
  nested exception is:
    java.net.ConnectException: Connection refused (Connection refused)
    at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2210)
    at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:722)
    at jakarta.mail.Service.connect(Service.java:342)
    at jakarta.mail.Service.connect(Service.java:222)
    at jakarta.mail.Service.connect(Service.java:171)
    at jakarta.mail.Transport.send0(Transport.java:230)
    at jakarta.mail.Transport.send(Transport.java:100)
    at com.appworx.shared.code.email.Email.A(Email.java:355)
    at com.appworx.server.data.AxRmiServer.sendEmail(AxRmiServer.java:3455)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at com.uc4.be.util.InvokeUtil.invoke(InvokeUtil.java:122)
    at com.appworx.util.InvokeRequest.invokeMethod(InvokeRequest.java:47)
    at com.appworx.server.data.B.A(ClientServices.java:150)
    at com.appworx.server.data.B.A(ClientServices.java:132)
    at com.appworx.server.data.D$_A.doRun(RemoteClientSocketManager.java:174)
    at com.uc4.be.threading.AbstractWorker.run(AbstractWorker.java:367)
    at java.lang.Thread.run(Thread.java:750)

If the above error is seen:

1. The SMTP host/IP and/or Port values are incorrect
or 
2. If values are correct, a network/firewall issue maybe present. 

Lastly, if a different error is found that can not be resolved, open a case with Broadcom Support, and provide issue information as well as RmiServer log containing the error.