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Java.lang.NullPointerException (Read 5782 times)

dhoult YaBB Newbies Offline I love YaBB 1G - SP1! Posts: 23 Joined: Jun 3^rd, 2008	Java.lang.NullPointerException Jun 5^th, 2008 at 2:07pm	Print Post
	Hi, Running in Applet mode. This exception happens about 50% of the time while loading the page and page does not finish loading. The other 50% it works fine and great. Any ideas?


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dhoult YaBB Newbies Offline I love YaBB 1G - SP1! Posts: 23 Joined: Jun 3^rd, 2008	Re: Java.lang.NullPointerException Reply #1 - Jun 5^th, 2008 at 2:09pm	Print Post
	Full text from Java Console: java.lang.NullPointerException at sun.plugin.AppletViewer.loadJarFiles(Unknown Source) at sun.applet.AppletPanel.runLoader(Unknown Source) at sun.applet.AppletPanel.run(Unknown Source) at java.lang.Thread.run(Unknown Source) java.lang.NullPointerException at sun.plugin.AppletViewer.loadJarFiles(Unknown Source) at sun.applet.AppletPanel.runLoader(Unknown Source) at sun.applet.AppletPanel.run(Unknown Source) at java.lang.Thread.run(Unknown Source) java.lang.NullPointerException at sun.plugin.AppletViewer.loadJarFiles(Unknown Source) at sun.applet.AppletPanel.runLoader(Unknown Source) at sun.applet.AppletPanel.run(Unknown Source) at java.lang.Thread.run(Unknown Source) java.lang.NullPointerException at sun.plugin.AppletViewer.loadJarFiles(Unknown Source) at sun.applet.AppletPanel.runLoader(Unknown Source) at sun.applet.AppletPanel.run(Unknown Source) at java.lang.Thread.run(Unknown Source)


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Java.lang.NullPointerException Reply #2 - Jun 5^th, 2008 at 2:24pm	Print Post
	Hi, It doesn't seem the to reach the Netdiagram's applet's code at all. With what browser and Java runtime version are you getting the exception? Stoyan


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dhoult YaBB Newbies Offline I love YaBB 1G - SP1! Posts: 23 Joined: Jun 3^rd, 2008	Re: Java.lang.NullPointerException Reply #3 - Jun 5^th, 2008 at 2:30pm	Print Post
	IE7 Java (build 1.6.0_05-b13) So this could be a problem with code before we get to the applet? as in OUR code? we don't make mistakes whatever the issue, I just want to track it down so if i can eliminate your applet from the possible sources that's a step forward.


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Java.lang.NullPointerException Reply #4 - Jun 5^th, 2008 at 4:03pm	Print Post
	Never said it's your code, the exception log shows the culprit is sun.plugin.AppletViewer Are there any other applets on the page apart from the Flowchart, e.g. the Overview, ShapelistBox, or some third-party applets? Have you set the JarLocation property?


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dhoult YaBB Newbies Offline I love YaBB 1G - SP1! Posts: 23 Joined: Jun 3^rd, 2008	Re: Java.lang.NullPointerException Reply #5 - Jun 5^th, 2008 at 4:06pm	Print Post
	we have this defined first: <ndiag:flowchart id="palette" JarLocation="/Content/JDiagram.jar" runat="server" style="left: 0pt;" BorderColor="#e8eef7" BorderStyle="None" BoxClickedScript="palette_BoxClicked" AntiAlias="AntiAlias" BorderWidth="0" AutoActivateApplet="True"></ndiag:flowchart> then further down the page we have this: <ndiag:flowchart id="canvas" JarLocation="/Content/JDiagram.jar" ArrowCreatedScript="canvas_ArrowCreated" DocClickedScript="canvas_DocClicked" runat="server" style="position: absolute; top: 50px;left: 300px" BoxDblClickedScript="canvas_BoxClicked" AntiAlias="AntiAlias" AutoActivateApplet="True"></ndiag:flowchart>


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Java.lang.NullPointerException Reply #6 - Jun 5^th, 2008 at 4:14pm	Print Post
	Actually AutoActivateApplet is not required anymore, since Microsoft removed the "click to activate" feature from IE with a recent Widows Update. Try how that will work with AutoActivateApplet set to false. It might help, because the auto-activate feature leads to injecting the applets into the DOM via JavaScript, which could get the applet plugin into trouble. I hope that helps, Stoyan


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dhoult YaBB Newbies Offline I love YaBB 1G - SP1! Posts: 23 Joined: Jun 3^rd, 2008	Re: Java.lang.NullPointerException Reply #7 - Jun 5^th, 2008 at 4:16pm	Print Post
	ok, I'll give that a whirl and let you know. Thanks


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dhoult YaBB Newbies Offline I love YaBB 1G - SP1! Posts: 23 Joined: Jun 3^rd, 2008	Re: Java.lang.NullPointerException Reply #8 - Jul 27^th, 2008 at 12:53pm	Print Post
	sorry, forget to let you know. That was the issue Thanks.


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