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PONullPointerException when attempting to start JWS application
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  1. PONullPointerException when attempting to start JWS application
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    copied!<p>I am trying to start the JNLP located at <a href="http://gparyani.com/beatbox.jnlp" rel="nofollow">http://gparyani.com/beatbox.jnlp</a>, but I get a NullPointerException in an internal class when I try to do so:</p> <pre><code>java.lang.NullPointerException at com.sun.deploy.security.SandboxSecurity.showSandboxDialog(Unknown Source) at com.sun.deploy.security.SandboxSecurity.checkSignedSandboxSecurity(Unknown Source) at com.sun.deploy.security.SandboxSecurity.isPermissionGranted(Unknown Source) at com.sun.javaws.security.JNLPSignedResourcesHelper.checkSignedResourcesHelper(Unknown Source) at com.sun.javaws.security.JNLPSignedResourcesHelper.checkSignedResources(Unknown Source) at com.sun.javaws.Launcher.prepareResources(Unknown Source) at com.sun.javaws.Launcher.prepareAllResources(Unknown Source) at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source) at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source) at com.sun.javaws.Launcher.launch(Unknown Source) at com.sun.javaws.Main.launchApp(Unknown Source) at com.sun.javaws.Main.continueInSecureThread(Unknown Source) at com.sun.javaws.Main.access$000(Unknown Source) at com.sun.javaws.Main$1.run(Unknown Source) at java.lang.Thread.run(Unknown Source) </code></pre> <p>Here's the JNLP:</p> <pre class="lang-xml prettyprint-override"><code>&lt;jnlp spec="1.0+" codebase="http://gparyani.com/"&gt; &lt;information&gt; &lt;title&gt;BeatBox&lt;/title&gt; &lt;vendor&gt;Gaurav Paryani, Nick Hoang, and Harrison Qi&lt;/vendor&gt; &lt;offline-allowed/&gt; &lt;/information&gt; &lt;update check="background" policy="prompt-run"/&gt; &lt;resources&gt; &lt;j2se version="1.7+"/&gt; &lt;jar href="beatbox.jar" main="true"/&gt; &lt;/resources&gt; &lt;application-desc main-class="com.gparyani.beatbox.GUIMaker"/&gt; &lt;/jnlp&gt; </code></pre> <p>What is the problem here?</p>
 

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