This issue was originally marked as duplicate of issue 162214, that is already resolved. This issue is still valid, so this seems to be another issue, but it might be related.

Build: NetBeans IDE 6.8 Beta (Build 200910212001)
VM: Java HotSpot(TM) 64-Bit Server VM, 14.3-b01, Java(TM) SE Runtime Environment, 1.6.0_17-b04
OS: Linux, 2.6.31-14-generic, amd64

User Comments:
ovk: - started new IDE;
- went to Services and activated ruby by adding GF3;
- created and run ruby app;
- removed GF3 from IDE;
- activated J2EE and Web;->exception during activatioon

pdeville: just opening maven project

mithridates: Started 6.8 beta on Mac OS for the first time (Importing settings from 6.7)



Stacktrace: 
org.netbeans.modules.j2ee.deployment.plugins.api.InstanceCreationException: 0 handlers registered, no handlers for [/local/softs/glassfish/3.0-68/glassfish]deployer:gfv3ee6:localhost:4848
        at org.netbeans.modules.j2ee.deployment.impl.ServerRegistry.addInstanceImpl(ServerRegistry.java:466)
        at org.netbeans.modules.j2ee.deployment.impl.ServerRegistry.addInstance(ServerRegistry.java:360)
        at org.netbeans.modules.j2ee.deployment.plugins.api.InstanceProperties.createInstancePropertiesWithoutUI(InstanceProperties.java:260)
        at org.netbeans.modules.glassfish.javaee.JavaEEServerModuleFactory.createModule(JavaEEServerModuleFactory.java:117)
        at org.netbeans.modules.glassfish.common.GlassfishInstance.updateFactories(GlassfishInstance.java:180)
        at org.netbeans.modules.glassfish.common.GlassfishInstance.resultChanged(GlassfishInstance.java:200)