[shrinkwrap-issues] [JBoss JIRA] (SHRINKWRAP-462) Better Error Message if ClassLoaders can't find impl/spi

[Andrew Rubinger (JIRA)]

Andrew Rubinger created SHRINKWRAP-462:
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             Summary: Better Error Message if ClassLoaders can't find impl/spi
                 Key: SHRINKWRAP-462
                 URL: https://issues.jboss.org/browse/SHRINKWRAP-462
             Project: ShrinkWrap
          Issue Type: Feature Request
          Components: api
    Affects Versions: 1.1.3
            Reporter: Andrew Rubinger


If the user is mixing SW versions, for instance like so:

{code}[INFO] com.sparta.ee:ee-integration-testing:jar:1.0.0.I9-SNAPSHOT
[INFO] +- org.jboss.shrinkwrap:shrinkwrap-api:jar:1.1.1:compile
[INFO] \- org.jboss.shrinkwrap:shrinkwrap-impl-base:jar:1.1.1:test
[INFO]    \- org.jboss.shrinkwrap:shrinkwrap-spi:jar:1.0.1:test (version managed from 1.1.1){code}

...the following exception is very unhelpful:

{code}<error message="Could not invoke deployment method: public static org.jboss.shrinkwrap.api.spec.JavaArchive com.sparta.ee.test.authorization.api.AuthorizationAPIITest.createDeployment1()" type="java.lang.RuntimeException">java.lang.RuntimeException: Could not invoke deployment method: public static org.jboss.shrinkwrap.api.spec.JavaArchive com.sparta.ee.test.authorization.api.AuthorizationAPIITest.createDeployment1()
  at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:264)
	at org.jboss.shrinkwrap.api.ClassLoaderSearchUtil.findClassFromClassLoaders(ClassLoaderSearchUtil.java:74)
	at org.jboss.shrinkwrap.api.ArchiveFactory.create(ArchiveFactory.java:138)
	at org.jboss.shrinkwrap.api.ShrinkWrap.create(ShrinkWrap.java:163)
	at com.sparta.ee.test.utils.DeploymentUtils.createFromZip(DeploymentUtils.java:30)
	at com.sparta.ee.test.utils.DeploymentUtils.importArtifact(DeploymentUtils.java:24)
	at com.sparta.ee.test.utils.DeploymentUtils.createTwsClient(DeploymentUtils.java:57)
	at com.sparta.ee.test.authorization.api.AuthorizationAPIITest.createDeployment1(AuthorizationAPIITest.java:45)
</error>{code}

Let's catch any problems in loading the SPI/implementation classes via the API, provide some context, and suggest that the user check his/her config to ensure that all SW modules used have the same version.

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