Hi,
I've been using pax-exam 1.x and now start to migrate to 2.0. I've tried out
the 2.0 rc4 version of Pax-Exam but have run into a couple of problems. I
use the native container support with Felix 3.0.8 (is that supported?). I
use the following dependencies:
<dependency>
<groupId>org.ops4j.pax.exam</groupId>
<artifactId>pax-exam-junit4</artifactId>
<version>2.0.0-RC4</version>
</dependency>
<dependency>
<groupId>org.ops4j.pax.exam</groupId>
<artifactId>pax-exam-container-native</artifactId>
<version>2.0.0-RC4</version>
</dependency>
<dependency>
<groupId>org.ops4j.pax.exam</groupId>
<artifactId>pax-exam-link-mvn</artifactId>
<version>2.0.0-RC4</version>
</dependency>
<dependency>
<groupId>org.apache.felix</groupId>
<artifactId>org.apache.felix.framework</artifactId>
<version>3.0.8</version>
</dependency>
I've been wondering what the artifact "pax-exam-link-mvn" does? I currently
list my dependencies in the pom.xml and use the Pax-Runner options to
specifiy what bundles to load - just like I did with Pax-Exam 1.x. Is there
a better way to do this in Pax-Exam 2.0? Is there a way to use Karaf
features (I use Karaf 2.2.0)?
I have problems using slf4j. I used to install the bundle "slf4j-log4j12"
(version 1.5.6) but whenever I do that I get an error message saying "Cannot
start fragment". I assume that slf4j-log4j12 is a fragment and that Pax-Exam
is trying to start it (which of course is not possible). Is this a known bug
or is there a way for me to specify that this bundle is a fragment and
cannot be started?
Also, I get the following exception:
*ERROR: Bundle org.apache.aries.jpa.container [8]: Error starting
> mvn:org.apache.aries.jpa/org.apache.aries.jpa.container/0.3
> (org.osgi.framework.BundleException: Activator start error in bundle
> org.apache.aries.jpa.container [8].)
> java.lang.SecurityException: class
> "org.osgi.util.tracker.BundleTrackerCustomizer"'s signer information does
> not match signer information of other classes in the same package
> at java.lang.ClassLoader.checkCerts(ClassLoader.java:807)
> at java.lang.ClassLoader.preDefineClass(ClassLoader.java:488)
> at java.lang.ClassLoader.defineClassCond(ClassLoader.java:626)
> at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
> at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
> at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
> at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
> at
> org.apache.felix.framework.ExtensionManager$ExtensionManagerModule.getClassByDelegation(ExtensionManager.java:697)
> at org.apache.felix.framework.resolver.WireImpl.getClass(WireImpl.java:99)
> at
> org.apache.felix.framework.ModuleImpl.searchImports(ModuleImpl.java:1390)
> at
> org.apache.felix.framework.ModuleImpl.findClassOrResourceByDelegation(ModuleImpl.java:722)
> at org.apache.felix.framework.ModuleImpl.access$400(ModuleImpl.java:71)
> at
> org.apache.felix.framework.ModuleImpl$ModuleClassLoader.loadClass(ModuleImpl.java:1768)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
> at java.lang.ClassLoader.defineClass1(Native Method)
> at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
> at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
> at
> org.apache.felix.framework.ModuleImpl$ModuleClassLoader.findClass(ModuleImpl.java:1907)
> at
> org.apache.felix.framework.ModuleImpl.findClassOrResourceByDelegation(ModuleImpl.java:727)
> at org.apache.felix.framework.ModuleImpl.access$400(ModuleImpl.java:71)
> at
> org.apache.felix.framework.ModuleImpl$ModuleClassLoader.loadClass(ModuleImpl.java:1768)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
> at
> org.apache.felix.framework.ModuleImpl.getClassByDelegation(ModuleImpl.java:645)
> at org.apache.felix.framework.Felix.createBundleActivator(Felix.java:3687)
> at org.apache.felix.framework.Felix.activateBundle(Felix.java:1830)
> at org.apache.felix.framework.Felix.startBundle(Felix.java:1752)
> at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1156)
> at org.apache.felix.framework.StartLevelImpl.run(StartLevelImpl.java:264)
> at java.lang.Thread.run(Thread.java:619)*
Does anyone know what this means?
I'm very interested in moving on to Pax-Exam 2.0. Convenient testing within
an OSGi container is something that I really need and this seems like a good
way of achieving it. However, I do feel that there is a lack of
documentation as to how Pax-Exam works. I'm sure that will improve once 2.0
is released.
Thanks,
/Bengt
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