Description of problem:

In several places where Seam catches ClassNotFoundException, NoClassDefFoundError, ... it doesn't catch the general LinkageError, causing some deployments to fail on EAP 6.1 (those with Seam Remoting not bundling an an optional gwt-servlet)

Version-Release number of selected component (if applicable):
WFK 2.2.0

How reproducible:
Always

Steps to Reproduce:
1. Attempt to deploy seambay example to EAP 6.1

Notice the warning of failing to load components.xml because of the LinkageError exception, causing the deployment failure:

10:40:40,202 WARN  [org.jboss.seam.integration.jbossas.vfs.VFSScanner] (ServerService Thread Pool -- 51) Cannot read resource: META-INF/components.xml: java.io.IOException
	at org.jboss.seam.integration.jbossas.vfs.VFSScanner.handleItem(VFSScanner.java:212) [jboss-seam-int.jar:6.0.0.GA-redhat-2]
	at org.jboss.seam.integration.jbossas.vfs.VFSScanner.handleRoot(VFSScanner.java:190) [jboss-seam-int.jar:6.0.0.GA-redhat-2]
	at org.jboss.seam.integration.jbossas.vfs.VFSScanner.scanResources(VFSScanner.java:153) [jboss-seam-int.jar:6.0.0.GA-redhat-2]
	at org.jboss.seam.deployment.StandardDeploymentStrategy.scan(StandardDeploymentStrategy.java:119) [jboss-seam.jar:2.3.1.Final-redhat-1]
	at org.jboss.seam.init.Initialization.create(Initialization.java:131) [jboss-seam.jar:2.3.1.Final-redhat-1]
	at org.jboss.seam.servlet.SeamListener.contextInitialized(SeamListener.java:36) [jboss-seam.jar:2.3.1.Final-redhat-1]
	at org.apache.catalina.core.StandardContext.contextListenerStart(StandardContext.java:3339) [jbossweb-7.2.0.Final-redhat-1.jar:7.2.0.Final-redhat-1]
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:3777) [jbossweb-7.2.0.Final-redhat-1.jar:7.2.0.Final-redhat-1]
	at org.jboss.as.web.deployment.WebDeploymentService.doStart(WebDeploymentService.java:156) [jboss-as-web-7.2.0.Final-redhat-6.jar:7.2.0.Final-redhat-6]
	at org.jboss.as.web.deployment.WebDeploymentService.access$000(WebDeploymentService.java:60) [jboss-as-web-7.2.0.Final-redhat-6.jar:7.2.0.Final-redhat-6]
	at org.jboss.as.web.deployment.WebDeploymentService$1.run(WebDeploymentService.java:93) [jboss-as-web-7.2.0.Final-redhat-6.jar:7.2.0.Final-redhat-6]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [rt.jar:1.7.0_19]
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) [rt.jar:1.7.0_19]
	at java.util.concurrent.FutureTask.run(FutureTask.java:166) [rt.jar:1.7.0_19]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_19]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_19]
	at java.lang.Thread.run(Thread.java:722) [rt.jar:1.7.0_19]
	at org.jboss.threads.JBossThread.run(JBossThread.java:122)
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.GeneratedMethodAccessor52.invoke(Unknown Source) [:1.7.0_19]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_19]
	at java.lang.reflect.Method.invoke(Method.java:601) [rt.jar:1.7.0_19]
	at org.jboss.seam.integration.jbossas.vfs.VFSScanner.handleItem(VFSScanner.java:208) [jboss-seam-int.jar:6.0.0.GA-redhat-2]
	... 17 more
Caused by: java.lang.LinkageError: Failed to link org/jboss/seam/remoting/gwt/GWTService (Module "deployment.seam-seambay.ear:main" from Service Module Loader)
	at org.jboss.modules.ModuleClassLoader.defineClass(ModuleClassLoader.java:427) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.ModuleClassLoader.loadClassLocal(ModuleClassLoader.java:260) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.ModuleClassLoader$1.loadClassLocal(ModuleClassLoader.java:75) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.Module.loadModuleClass(Module.java:526) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:188) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:444) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:432) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:374) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:119) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at java.lang.ClassLoader.defineClass1(Native Method) [rt.jar:1.7.0_19]
	at java.lang.ClassLoader.defineClass(ClassLoader.java:791) [rt.jar:1.7.0_19]
	at org.jboss.modules.ModuleClassLoader.doDefineOrLoadClass(ModuleClassLoader.java:344) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.ModuleClassLoader.defineClass(ModuleClassLoader.java:422) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.ModuleClassLoader.loadClassLocal(ModuleClassLoader.java:260) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.ModuleClassLoader$1.loadClassLocal(ModuleClassLoader.java:75) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.Module.loadModuleClass(Module.java:526) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:188) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:444) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:432) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:374) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:119) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.seam.deployment.ClassDescriptor.<init>(ClassDescriptor.java:30) [jboss-seam.jar:2.3.1.Final-redhat-1]
	at org.jboss.seam.deployment.AbstractScanner$Handler.getClassDescriptor(AbstractScanner.java:125) [jboss-seam.jar:2.3.1.Final-redhat-1]
	at org.jboss.seam.deployment.AbstractScanner$Handler.handle(AbstractScanner.java:67) [jboss-seam.jar:2.3.1.Final-redhat-1]
	at org.jboss.seam.deployment.AbstractScanner$Handler.handle(AbstractScanner.java:97) [jboss-seam.jar:2.3.1.Final-redhat-1]
	at org.jboss.seam.deployment.AbstractScanner.handle(AbstractScanner.java:225) [jboss-seam.jar:2.3.1.Final-redhat-1]
	... 21 more
Caused by: java.lang.NoClassDefFoundError: com/google/gwt/user/server/rpc/SerializationPolicyProvider
	at java.lang.ClassLoader.defineClass1(Native Method) [rt.jar:1.7.0_19]
	at java.lang.ClassLoader.defineClass(ClassLoader.java:791) [rt.jar:1.7.0_19]
	at org.jboss.modules.ModuleClassLoader.doDefineOrLoadClass(ModuleClassLoader.java:344) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.ModuleClassLoader.defineClass(ModuleClassLoader.java:422) [jboss-modules.jar:1.2.0.Final-redhat-1]
	... 46 more
Caused by: java.lang.ClassNotFoundException: com.google.gwt.user.server.rpc.SerializationPolicyProvider from [Module "deployment.seam-seambay.ear:main" from Service Module Loader]
	at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:196) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:444) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:432) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:374) [jboss-modules.jar:1.2.0.Final-redhat-1]
	at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:119) [jboss-modules.jar:1.2.0.Final-redhat-1]
	... 50 more