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: 1.1.5.Final, 1.1.4.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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