JBossDeveloper

What JVM are you using? Is that the first error you see in the log file?

Also, mabye try unzipping GateIn in a folder without spaces in the names.

It gives lots of error:

Below is the one and there are many more..

Caused by: java.lang.ClassNotFoundException: org.apache.xerces.xni.XMLDocumentHandler from BaseClassLoader@adaa9f{VFSClassLoaderPolicy@19cea9e{name=vfsfile:/C:/Documents%20and%20Settings/Administrator/Desktop/java/GateIn/test/GateIn-3.1.0-GA/server/default/deploy/gatein.ear/ domain=ClassLoaderDomain@15f4a7f{name=DefaultDomain parentPolicy=BEFORE parent=org.jboss.bootstrap.NoAnnotationURLClassLoader@13582d} roots=[MemoryContextHandler@15684846[path= context=vfsmemory://a00y-ru7jx2-gkyyxpnx-1-gkyyy3tx-2b real=vfsmemory://a00y-ru7jx2-gkyyxpnx-1-gkyyy3tx-2b], DelegatingHandler@11591678[path=gatein.ear/lib/activation-1.1.jar context=file:/C:/Documents%20and%20Settings/Administrator/Desktop/java/GateIn/test/GateIn-3.1.0-GA/server/default/deploy/ real=file:/C:/Documents%20and%20Settings/Administrator/Desktop/java/GateIn/test/GateIn-3.1.0-GA/server/default/deploy/gatein.ear/lib/activation-1.1.jar], FileHandler@31389825[path=gatein.ear context=file:/C:/Documents%20and%20Settings/Administrator/Desktop/java/GateIn/test/GateIn-3.1.0-GA/server/default/deploy/ real=file:/C:/Documents%20and%20Settings/Administrator/Desktop/java/GateIn/test/GateIn-3.1.0-GA/server/default/deploy/gatein.ear/]]