[weld-issues] [JBoss JIRA] (WELD-1040) Support Java Web Start

[Alexandre Gattiker (Updated) (JIRA)]

     [ https://issues.jboss.org/browse/WELD-1040?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexandre Gattiker updated WELD-1040:
-------------------------------------

    Attachment: weld-webstart-bug.zip

    
> Support Java Web Start
> ----------------------
>
>                 Key: WELD-1040
>                 URL: https://issues.jboss.org/browse/WELD-1040
>             Project: Weld
>          Issue Type: Bug
>          Components: Java SE Support
>    Affects Versions: 1.1.4.Final, 1.1.5.Final
>            Reporter: Alexandre Gattiker
>         Attachments: weld-webstart-bug.zip
>
>
> ClassLoader.getResources("META-INF/beans.xml") returns remote server URLs in the format "http://..."
> Weld's FileSystemURLHandler tries to open these URLs as files, which leads to:
> java.lang.RuntimeException: Error handling file http:/localhost:8080/weld-webstart-war-0.0.1-SNAPSHOT/webstart/weld-webstart-jar.jar
> 	at org.jboss.weld.environment.se.discovery.url.FileSystemURLHandler.handleArchiveByFile(FileSystemURLHandler.java:80)
> 	at org.jboss.weld.environment.se.discovery.url.FileSystemURLHandler.handle(FileSystemURLHandler.java:58)
> 	at org.jboss.weld.environment.se.discovery.url.URLScanner.scan(URLScanner.java:102)
> 	at org.jboss.weld.environment.se.discovery.url.WeldSEUrlDeployment.<init>(WeldSEUrlDeployment.java:39)
> 	at org.jboss.weld.environment.se.Weld.createDeployment(Weld.java:130)
> 	at org.jboss.weld.environment.se.Weld.initialize(Weld.java:80)
> 	at com.example.TestApp.main(TestApp.java:12)
> 	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 com.sun.javaws.Launcher.executeApplication(Launcher.java:1914)
> 	at com.sun.javaws.Launcher.executeMainClass(Launcher.java:1847)
> 	at com.sun.javaws.Launcher.doLaunchApp(Launcher.java:1609)
> 	at com.sun.javaws.Launcher.run(Launcher.java:138)
> 	at java.lang.Thread.run(Thread.java:680)
> Caused by: java.util.zip.ZipException: error in opening zip file
> 	at java.util.zip.ZipFile.open(Native Method)
> 	at java.util.zip.ZipFile.<init>(ZipFile.java:127)
> 	at java.util.zip.ZipFile.<init>(ZipFile.java:143)
> 	at org.jboss.weld.environment.se.discovery.url.FileSystemURLHandler.handleArchiveByFile(FileSystemURLHandler.java:71)
> 	... 15 more
> I am attaching a demo project that also contains a proposed fix, using com.sun.jnlp.JNLPClassLoader#getJarFile(URL) to retrieve the location of the locally cached copy of the JAR. As this is an internal class it is accessed by reflection. The getJarFile method only exists in JRE 6, not in JRE 5.
> Add to org.jboss.weld.environment.se.discovery.url.FileSystemURLHandler:
> if (urlPath.startsWith("http:") || urlPath.startsWith("https:")) {
>   ClassLoader cl;
>   if (Thread.currentThread().getContextClassLoader() != null) {
> 	cl = Thread.currentThread().getContextClassLoader();
>   } else {
> 	cl = getClass().getClassLoader();
>   }
>   // see http://javasourcecode.org/html/open-source/jdk/jdk-6u23/com/sun/jnlp/JNLPClassLoader.java.html
>   // public JarFile getJarFile(URL url) throws IOException {
>   Method m = cl.getClass().getMethod("getJarFile", URL.class);
>   // returns a reference to the local cached copy of the JAR
>   JarFile jarFile = (JarFile) m.invoke(cl, new URL(urlPath));
>   urlPath = jarFile.getName();
> }

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