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Posted to issues@karaf.apache.org by "Tommy Svensson (JIRA)" <ji...@apache.org> on 2017/07/11 15:09:00 UTC
[jira] [Commented] (KARAF-5242) Classloading not compliant with
java .class structure/content
[ https://issues.apache.org/jira/browse/KARAF-5242?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16082349#comment-16082349 ]
Tommy Svensson commented on KARAF-5242:
---------------------------------------
Strangely, on my MacBookPro:
`Darwin Tommys-MBP4 16.6.0 Darwin Kernel Version 16.6.0: Fri Apr 14 16:21:16 PDT 2017; root:xnu-3789.60.24~6/RELEASE_X86_64 x86_64`
and jdk:
{{java version "1.8.0_131"
Java(TM) SE Runtime Environment (build 1.8.0_131-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.131-b11, mixed mode)}}
this does not happen! Same Karaf version, same JDK version.
> Classloading not compliant with java .class structure/content
> -------------------------------------------------------------
>
> Key: KARAF-5242
> URL: https://issues.apache.org/jira/browse/KARAF-5242
> Project: Karaf
> Issue Type: Bug
> Affects Versions: 4.1.1
> Environment: Linux run in Vagrant.
> openjdk version "1.8.0_131"
> OpenJDK Runtime Environment (build 1.8.0_131-8u131-b11-0ubuntu1.16.04.2-b11)
> OpenJDK 64-Bit Server VM (build 25.131-b11, mixed mode)
> Reporter: Tommy Svensson
>
> I get the following stack trace in the log:
> {{
> Caused by: java.lang.ClassNotFoundException: Unable to load class 'se.natusoft.osgi.aps.web.adminweb.WebContentServer$_closure1$_closure5' because the bundle wiring for aps-admin-web-a2 is no longer valid.
> at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1515) ~[?:?]
> at org.apache.felix.framework.BundleWiringImpl.access$200(BundleWiringImpl.java:79) ~[?:?]
> at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1958) ~[?:?]
> at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:?]
> ... 44 more
> }}
> Note that '_closure1' is an inner class and that '_closure5' is in inner class of '_closure_1'.
> Bytecode wise they both reside in WebContentServer.class, and there is no such thing as "se.natusoft.osgi.aps.web.adminweb.WebContentServer$_closure1.class" nor "se.natusoft.osgi.aps.web.adminweb.WebContentServer$_closure1$_closure5.class"!
> From decompiled WebContentServer.class:
> {{
> public class WebContentServer extends VertxConsumer implements Consumer<Vertx>, Constants {
> ...
> public class _closure1 extends Closure implements GeneratedClosure {
> public _closure1(Object _thisObject) {
> super(WebContentServer.this, _thisObject);
> }
> public Object doCall(Consumed<Router> router) {
> WebContentServer.pfaccess$01((WebContentServer)this.getThisObject(), router);
> class _closure5 extends Closure implements GeneratedClosure {
> public _closure5(Object _thisObject) {
> super(_closure1.this, _thisObject);
> }
> ...
> }}
> This is compiled from Groovy code which is still compatible with java5 byte code standard. I have not read anywhere that java8 is not capable of running java5 byte code, and when the code is run in unit tests with java8 there is no problem. So I conclude that this problem resides in Karaf or more probably Felix which is at the bottom as I understand it. It is with Karaf I have the problem so it is here I report this.
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