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POJWS stack overflow error
 

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  1. POJWS stack overflow error
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    <p>I like to use Java Web Start to put up a demo of my Java game to the web so that user can view and interact with the game characters and so on. </p> <p>I exported the project to a jar file using Eclipse export runnable jar feature. I was then able to run it with <code>java -jar</code> successfully. I set up a <code>test.jnlp</code> file as below:</p> <pre><code> &lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;jnlp spec="1.0+" codebase="/home/bili/JWSdeploytest/" href="test.jnlp"&gt; &lt;information&gt; &lt;title&gt;Demo&lt;/title&gt; &lt;vendor&gt;binman&lt;/vendor&gt; &lt;description&gt;Test&lt;/description&gt; &lt;offline-allowed/&gt; &lt;/information&gt; &lt;resources&gt; &lt;jar href="LoadbonesFOrmat.jar" main="true"/&gt; &lt;extension name="Demo" href="test.jnlp" /&gt; &lt;/resources&gt; &lt;security&gt; &lt;all-permissions/&gt; &lt;/security&gt; &lt;application-desc /&gt; &lt;/jnlp&gt; </code></pre> <p>I tried to test it locally on my machine with debug turning on that I read from other post on here:</p> <pre><code>set JAVAWS_TRACE_NATIVE=1 set JAVAWS_VM_ARGS="-Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket, address=8989,server=y,suspend=n" </code></pre> <p>But when I run <code>javaws test.jnlp</code> I got <code>StackOverflowError</code>. Below is output:</p> <pre><code>bili@bili-SFF:~/JWSdeploytest$ javaws -J test.jnlp Exception in thread "Demo" java.lang.StackOverflowError at java.util.LinkedHashMap$LinkedHashIterator.&lt;init&gt;(LinkedHashMap.java:362) at java.util.LinkedHashMap$LinkedHashIterator.&lt;init&gt;(LinkedHashMap.java:362) at java.util.LinkedHashMap$KeyIterator.&lt;init&gt;(LinkedHashMap.java:400) at java.util.LinkedHashMap$KeyIterator.&lt;init&gt;(LinkedHashMap.java:400) at java.util.LinkedHashMap.newKeyIterator(LinkedHashMap.java:413) at java.util.HashMap$KeySet.iterator(HashMap.java:891) at java.io.ExpiringCache.cleanup(ExpiringCache.java:117) at java.io.ExpiringCache.get(ExpiringCache.java:74) at java.io.UnixFileSystem.canonicalize(UnixFileSystem.java:152) at java.io.File.getCanonicalPath(File.java:576) at sun.security.provider.PolicyFile.canonPath(PolicyFile.java:1872) at java.io.FilePermission$1.run(FilePermission.java:203) at java.io.FilePermission$1.run(FilePermission.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.io.FilePermission.init(FilePermission.java:200) at java.io.FilePermission.&lt;init&gt;(FilePermission.java:266) at java.lang.SecurityManager.checkRead(SecurityManager.java:888) at net.sourceforge.jnlp.config.DeploymentConfiguration.getProperty(DeploymentConfiguration.java:269) at net.sourceforge.jnlp.SecurityDesc.getCustomTrustedPolicy(SecurityDesc.java:172) at net.sourceforge.jnlp.SecurityDesc.&lt;init&gt;(SecurityDesc.java:159) at net.sourceforge.jnlp.Parser.getSecurity(Parser.java:553) at net.sourceforge.jnlp.JNLPFile.parse(JNLPFile.java:594) at net.sourceforge.jnlp.JNLPFile.&lt;init&gt;(JNLPFile.java:178) at net.sourceforge.jnlp.JNLPFile.&lt;init&gt;(JNLPFile.java:211) at net.sourceforge.jnlp.runtime.JNLPClassLoader.getInstance(JNLPClassLoader.java:351) at net.sourceforge.jnlp.runtime.JNLPClassLoader.initializeExtensions(JNLPClassLoader.java:370) at net.sourceforge.jnlp.runtime.JNLPClassLoader.&lt;init&gt;(JNLPClassLoader.java:174) at net.sourceforge.jnlp.runtime.JNLPClassLoader.getInstance(JNLPClassLoader.java:295) at net.sourceforge.jnlp.runtime.JNLPClassLoader.getInstance(JNLPClassLoader.java:351) at net.sourceforge.jnlp.runtime.JNLPClassLoader.initializeExtensions(JNLPClassLoader.java:370) at net.sourceforge.jnlp.runtime.JNLPClassLoader.&lt;init&gt;(JNLPClassLoader.java:174) at net.sourceforge.jnlp.runtime.JNLPClassLoader.getInstance(JNLPClassLoader.java:295) at net.sourceforge.jnlp.runtime.JNLPClassLoader.getInstance(JNLPClassLoader.java:351) at net.sourceforge.jnlp.runtime.JNLPClassLoader.initializeExtensions(JNLPClassLoader.java:370) </code></pre> <p>The three line 295:351:370 are repeated dozen more time. It looks to me from the output as if there is some restricted access going on. I checked and verified that the Jar file, jnlp are allowed to be executed/read.</p> <p>I start to wonder if I need a web server to test it out. However few things that cast doubt in my mind as I never work with JWS before:</p> <ol> <li>Something is wrong with the jar file (I didn't export it correctly)</li> <li>The <code>test.jnlp</code> is not configured correctly</li> </ol> <p>Any pointers as to how can I solve this JWS business?</p> <p>Edit: I have removed the extention element and it throws another Exception:</p> <pre><code> bili@bili-SFF:~/JWSdeploytest$ javaws test.jnlp net.sourceforge.jnlp.LaunchException: Fatal: Launch Error: Could not launch JNLP file. at net.sourceforge.jnlp.Launcher.launchApplication(Launcher.java:596) at net.sourceforge.jnlp.Launcher$TgThread.run(Launcher.java:887) Caused by: java.lang.IllegalArgumentException: file:/home/bili/JWSdeploytest/LoadbonesFOrmat.jar is not a cacheable resource at net.sourceforge.jnlp.cache.CacheUtil.getCacheFile(CacheUtil.java:297) at net.sourceforge.jnlp.Launcher.launchApplication(Launcher.java:561) ... 1 more Caused by: java.lang.IllegalArgumentException: file:/home/bili/JWSdeploytest/LoadbonesFOrmat.jar is not a cacheable resource at net.sourceforge.jnlp.cache.CacheUtil.getCacheFile(CacheUtil.java:297) at net.sourceforge.jnlp.Launcher.launchApplication(Launcher.java:561) at net.sourceforge.jnlp.Launcher$TgThread.run(Launcher.java:887) </code></pre> <p>This one seems more intuitive and I'm positive this timethat I haven't packed the Jar file correctly. Going to try it again later. Here is the output from JaNeLA:</p> <pre><code>content type application/xml does not equal expected type of application/x-java-jnlp-file XML encoding not known, but declared as utf-8 Codebase '/home/bili/JWSdeploytest/' is a malformed URL! Defaulting to file:/home/bili/JWSdeploytest/test.jnlp Codebase '/home/bili/JWSdeploytest/' is a malformed URL! Defaulting to file:/home/bili/JWSdeploytest/test.jnlp Codebase '/home/bili/JWSdeploytest/' is a malformed URL! Defaulting to file:/home/bili/JWSdeploytest/test.jnlp Codebase '/home/bili/JWSdeploytest/' is a malformed URL! Defaulting to file:/home/bili/JWSdeploytest/test.jnlp Downloads can be optimized by specifying a resource size for 'LoadbonesFOrmat.jar'. The resource download at LoadbonesFOrmat.jar can be optimized by removing the (default) value of download='eager'. Lazy downloads might not work as expected for LoadbonesFOrmat.jar unless the download 'part' is specified. </code></pre> <p>I've moved the security element above resource element to get rid of the cvc-complex-type.2.4.a: according to JaNeLa's help file on the website. In console, it says document is valid but the data might still be wrong!</p>
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    1. COYou have added the `applet` tag to the question but the JNLP indicates this is an application (JWS can launch either). Is it an applet, or not?
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      1. USAndrew Thompson
    2. COit's not an applet sorry! It was really early and I was just trying to finish the question.
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    3. COThanks for confirming (and the good sense to edit the tags). :)
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