java.lang.NullPointerException

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  • After upgrading jenkins (1.432 to 1.465), the instant-messenger (to 1.21) plugin and the jabber (to 1.22) plugin the jabber comunication (using google talk) stopped working, and started throwing a null pointer exception. {noformat} May 26, 2012 6:46:53 PM hudson.plugins.jabber.im.transport.JabberIMConnection connect INFO: Connected to XMPP on talk.google.com:5222/gmail.com using TLS May 26, 2012 6:46:53 PM hudson.plugins.jabber.im.transport.JabberIMConnection connect WARNING: java.lang.NullPointerException at hudson.plugins.jabber.im.transport.JabberIMConnection.connect(JabberIMConnection.java:166) at hudson.plugins.jabber.im.transport.JabberIMConnectionProvider.createConnection(JabberIMConnectionProvider.java:42) at hudson.plugins.im.IMConnectionProvider.create(IMConnectionProvider.java:65) at hudson.plugins.im.IMConnectionProvider.access$600(IMConnectionProvider.java:22) at hudson.plugins.im.IMConnectionProvider$ConnectorRunnable.run(IMConnectionProvider.java:183) at java.lang.Thread.run(Thread.java:662) {noformat} In the 1.22 version of the jabber plugin the line where the nullpointer occurs is {code:title=hudson.plugins.jabber.im.transport.JabberIMConnection.java|borderStyle=solid} for (IMMessageTarget chat : this.groupChats) { {code} In the previous version of the jabber plugin I didn´t have any groupChat defined, so I thought that maybe there was some problem updating that configuration so I: * configured a fake group chat * saved and restarted (this gave an error that it couldn´t use the groupchat obviously) * removed the fake group chat * saved and restarted (now the nullpointer error stopped and everything works fine) In the end I think that the fix should be either handling the possibility of a null groupchat list or detecting that and fixing the configuration before attempting to connect.
    via by Ruben Garat,
  • After upgrading jenkins (1.432 to 1.465), the instant-messenger (to 1.21) plugin and the jabber (to 1.22) plugin the jabber comunication (using google talk) stopped working, and started throwing a null pointer exception. {noformat} May 26, 2012 6:46:53 PM hudson.plugins.jabber.im.transport.JabberIMConnection connect INFO: Connected to XMPP on talk.google.com:5222/gmail.com using TLS May 26, 2012 6:46:53 PM hudson.plugins.jabber.im.transport.JabberIMConnection connect WARNING: java.lang.NullPointerException at hudson.plugins.jabber.im.transport.JabberIMConnection.connect(JabberIMConnection.java:166) at hudson.plugins.jabber.im.transport.JabberIMConnectionProvider.createConnection(JabberIMConnectionProvider.java:42) at hudson.plugins.im.IMConnectionProvider.create(IMConnectionProvider.java:65) at hudson.plugins.im.IMConnectionProvider.access$600(IMConnectionProvider.java:22) at hudson.plugins.im.IMConnectionProvider$ConnectorRunnable.run(IMConnectionProvider.java:183) at java.lang.Thread.run(Thread.java:662) {noformat} In the 1.22 version of the jabber plugin the line where the nullpointer occurs is {code:title=hudson.plugins.jabber.im.transport.JabberIMConnection.java|borderStyle=solid} for (IMMessageTarget chat : this.groupChats) { {code} In the previous version of the jabber plugin I didn´t have any groupChat defined, so I thought that maybe there was some problem updating that configuration so I: * configured a fake group chat * saved and restarted (this gave an error that it couldn´t use the groupchat obviously) * removed the fake group chat * saved and restarted (now the nullpointer error stopped and everything works fine) In the end I think that the fix should be either handling the possibility of a null groupchat list or detecting that and fixing the configuration before attempting to connect.
    via by Ruben Garat,
    • java.lang.NullPointerException at hudson.plugins.jabber.im.transport.JabberIMConnection.connect(JabberIMConnection.java:166) at hudson.plugins.jabber.im.transport.JabberIMConnectionProvider.createConnection(JabberIMConnectionProvider.java:42) at hudson.plugins.im.IMConnectionProvider.create(IMConnectionProvider.java:65) at hudson.plugins.im.IMConnectionProvider.access$600(IMConnectionProvider.java:22) at hudson.plugins.im.IMConnectionProvider$ConnectorRunnable.run(IMConnectionProvider.java:183) at java.lang.Thread.run(Thread.java:662)
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