Cannot Launch SUM Java Unable to Load

Question

Dear Guru's,
I'm going to upgrade Java SP on my SOLMAN 7.1, i have run the ./STARTUP from OS level and SL Controller have been started.
but when I access the SUM via web and launch it, i got this error from Java :
JNLPException[category: Download Error : Exception: java.net.UnknownHostException: xxxxx : LaunchDesc: null ]
  at com.sun.javaws.cache.DownloadProtocol.doDownload(Unknown Source)
  at com.sun.javaws.cache.DownloadProtocol.isLaunchFileUpdateAvailable(Unknown Source)
  at com.sun.javaws.LaunchDownload.getUpdatedLaunchDesc(Unknown Source)
  at com.sun.javaws.Launcher.downloadResources(Unknown Source)
  at com.sun.javaws.Launcher.handleApplicationDesc(Unknown Source)
  at com.sun.javaws.Launcher.handleLaunchFile(Unknown Source)
  at com.sun.javaws.Launcher.run(Unknown Source)
  at java.lang.Thread.run(Unknown Source)
I'm Using JRE 1.4.2_16.
i have tried to Run DSUGui from OS level using <sid>adm and still got this error :
<hostname>:smhadm 53> ./DSUGui
java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at SDTGui.showSUMSplashScreen(SDTGui.java:446)
        at SDTGui.configureSUM(SDTGui.java:261)
        at SDTGui.parseArgs(SDTGui.java:171)
        at SDTGui.<init>(SDTGui.java:48)
        at SDTGui.main(SDTGui.java:73)
Caused by: java.awt.HeadlessException:
No X11 DISPLAY variable was set, but this program performed an operation which requires it.
        at java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:161)
        at java.awt.Window.<init>(Window.java:432)
        at java.awt.Frame.<init>(Frame.java:403)
        at java.awt.Frame.<init>(Frame.java:368)
        at javax.swing.SwingUtilities$SharedOwnerFrame.<init>(SwingUtilities.java:1734)
        at javax.swing.SwingUtilities.getSharedOwnerFrame(SwingUtilities.java:1811)
        at javax.swing.JDialog.<init>(JDialog.java:253)
        at javax.swing.JDialog.<init>(JDialog.java:187)
        at javax.swing.JDialog.<init>(JDialog.java:135)
        at com.sap.sdt.gui.core.swing.util.SplashScreen.create(SplashScreen.java:136)
        at com.sap.sdt.gui.core.swing.util.SplashScreen.show(SplashScreen.java:62)
        at com.sap.sdt.gui.core.admin.SDTGuiAdmin.showSUMSplashScreen(SDTGuiAdmin.java:115)
        ... 9 more
Exception in thread "main" java.lang.NullPointerException: while trying to invoke the method java.lang.Object.toString() of a null object loaded from local variable 'result'
        at SDTGui.printErrorMessage(SDTGui.java:332)
        at SDTGui.showSUMSplashScreen(SDTGui.java:476)
        at SDTGui.configureSUM(SDTGui.java:261)
        at SDTGui.parseArgs(SDTGui.java:171)
        at SDTGui.<init>(SDTGui.java:48)
        at SDTGui.main(SDTGui.java:73)
my java version is :
java version "1.4.2_32"
Java(TM) 2 Runtime Environment, Standard Edition (build 4.1.016)
SAP Java Server VM (build 4.1.016 19.1-b02, Jan  2 2012 21:54:35 - 41_REL - optU - linux amd64 - 6 - bas2:164914 (mixed mode))
please help to solve this problem..
Best Regards,
Marvin

Answer 1

Hi Divyanshu,
you're right, afer i set the env, the SUM Gui shows up.
thankyou.
i'm trying to export the Certificate to fix the error at SUM when i try to run it.
but when i export it, it says like this :
<localhost>:<sid>adm 56> sapgenpse export_own_cert -v -p /usr/sap/<SID>/DVEBMGS00/sec/SAPSSLS.pse -o /sapcd/SUM/solman.crt
Opening PSE "/usr/sap/<SID>/DVEBMGS00/sec/SAPSSLS.pse"...
No SSO credentials found for this PSE.
PSE (v2) open ok.
Retrieving my certificate... ok.
Couldn't open output file /sapcd/SUM/solman.crt
is there something that i missed ?
Regards,
Marvin