websphere commerce - RAD - Data service layer wizard is not working -

i trying create new data service layer in rad. when select data service layer in wizard , on selecting next below exception in metadata logs

!entry org.eclipse.ui 4 0 2015-07-13 16:38:49.199 !message unhandled event loop exception !stack 0 java.lang.noclassdeffounderror: com.ibm.websphere.command.commandexception @ java.lang.classloader.defineclassimpl(native method) @ java.lang.classloader.defineclass(unknown source) @         org.eclipse.osgi.internal.baseadaptor.defaultclassloader.defineclass(unknown source) @ org.eclipse.osgi.baseadaptor.loader.classpathmanager.defineclass(unknown source) @ org.eclipse.osgi.baseadaptor.loader.classpathmanager.findclassimpl(unknown source) @ org.eclipse.osgi.baseadaptor.loader.classpathmanager.findlocalclassimpl(unknown source) @ org.eclipse.osgi.baseadaptor.loader.classpathmanager.findlocalclass_lockclassloader(unknown source) @ org.eclipse.osgi.baseadaptor.loader.classpathmanager.findlocalclass(unknown source) @ org.eclipse.osgi.internal.baseadaptor.defaultclassloader.findlocalclass(unknown source) @ org.eclipse.osgi.framework.internal.core.bundleloader.findlocalclass(unknown source) @ org.eclipse.osgi.framework.internal.core.bundleloader.findclassinternal(unknown source) @ org.eclipse.osgi.framework.internal.core.bundleloader.findclass(unknown source) @ org.eclipse.osgi.framework.internal.core.bundleloader.findclass(unknown source) @ org.eclipse.osgi.internal.baseadaptor.defaultclassloader.loadclass(unknown source) @ java.lang.classloader.loadclass(unknown source) @ java.lang.j9vminternals.verifyimpl(native method) @ java.lang.j9vminternals.verify(unknown source) @ java.lang.j9vminternals.initialize(unknown source) @ com.ibm.commerce.config.aesmigration.util.wcencryptionalgcheckerfactory.parsecommerceproductfile(unknown source) @ com.ibm.commerce.config.aesmigration.util.wcencryptionalgcheckerfactory.getwcencryptionalgchecker(unknown source) @ com.ibm.commerce.util.nc_crypt.decrypt(unknown source) @ com.ibm.commerce.util.nc_crypt.decrypt(unknown source) @ com.ibm.commerce.util.nc_crypt.decrypt(unknown source) @ com.ibm.commerce.toolkit.internal.dataaccess.wizards.sdogenerationwizard.initdatabaseconnection(unknown source) @ com.ibm.commerce.toolkit.internal.dataaccess.wizards.sdogenerationwizard.init(unknown source) @ org.eclipse.ui.internal.dialogs.workbenchwizardnode.getwizard(unknown source) @ org.eclipse.jface.wizard.wizardselectionpage.getnextpage(unknown source) @ org.eclipse.ui.internal.dialogs.workbenchwizardselectionpage.getnextpage(unknown source) @ org.eclipse.jface.wizard.wizarddialog.nextpressed(unknown source) @ org.eclipse.jface.wizard.wizarddialog.buttonpressed(unknown source) @ org.eclipse.jface.dialogs.dialog$2.widgetselected(unknown source) @ org.eclipse.swt.widgets.typedlistener.handleevent(unknown source) @ org.eclipse.swt.widgets.eventtable.sendevent(unknown source) @ org.eclipse.swt.widgets.widget.sendevent(unknown source) @ org.eclipse.swt.widgets.display.rundeferredevents(unknown source) @ org.eclipse.swt.widgets.display.readanddispatch(unknown source) @ org.eclipse.jface.window.window.runeventloop(unknown source) @ org.eclipse.jface.window.window.open(unknown source) @ org.eclipse.ui.internal.handlers.wizardhandler$new.executehandler(unknown source) @ org.eclipse.ui.internal.handlers.wizardhandler.execute(unknown source) @ org.eclipse.ui.internal.handlers.handlerproxy.execute(unknown source) @ org.eclipse.core.commands.command.executewithchecks(unknown source) @ org.eclipse.core.commands.parameterizedcommand.executewithchecks(unknown source) @ org.eclipse.ui.internal.handlers.handlerservice.executecommand(unknown source) @ org.eclipse.ui.internal.handlers.slavehandlerservice.executecommand(unknown source) @ org.eclipse.ui.internal.actions.commandaction.runwithevent(unknown source) @ org.eclipse.jface.action.actioncontributionitem.handlewidgetselection(unknown source) @ org.eclipse.jface.action.actioncontributionitem.access$2(unknown source) @ org.eclipse.jface.action.actioncontributionitem$5.handleevent(unknown source) @ org.eclipse.swt.widgets.eventtable.sendevent(unknown source) @ org.eclipse.swt.widgets.widget.sendevent(unknown source) @ org.eclipse.swt.widgets.display.rundeferredevents(unknown source) @ org.eclipse.swt.widgets.display.readanddispatch(unknown source) @ org.eclipse.ui.internal.workbench.runeventloop(unknown source) @ org.eclipse.ui.internal.workbench.runui(unknown source) @ org.eclipse.ui.internal.workbench.access$4(unknown source) @ org.eclipse.ui.internal.workbench$5.run(unknown source) @ org.eclipse.core.databinding.observable.realm.runwithdefault(unknown source) @ org.eclipse.ui.internal.workbench.createandrunworkbench(unknown source) @ org.eclipse.ui.platformui.createandrunworkbench(unknown source) @ org.eclipse.ui.internal.ide.application.ideapplication.start(unknown source) @ org.eclipse.equinox.internal.app.eclipseapphandle.run(unknown source) @ org.eclipse.core.runtime.internal.adaptor.eclipseapplauncher.runapplication(unknown source) @ org.eclipse.core.runtime.internal.adaptor.eclipseapplauncher.start(unknown source) @ org.eclipse.core.runtime.adaptor.eclipsestarter.run(unknown source) @ org.eclipse.core.runtime.adaptor.eclipsestarter.run(unknown source) @ sun.reflect.nativemethodaccessorimpl.invoke0(native method) @ sun.reflect.nativemethodaccessorimpl.invoke(unknown source) @ sun.reflect.delegatingmethodaccessorimpl.invoke(unknown source) @ java.lang.reflect.method.invoke(unknown source) @ org.eclipse.equinox.launcher.main.invokeframework(unknown source) @ org.eclipse.equinox.launcher.main.basicrun(unknown source) @ org.eclipse.equinox.launcher.main.run(unknown source) @ org.eclipse.equinox.launcher.main.main(unknown source) caused by: java.lang.classnotfoundexception: com.ibm.websphere.command.commandexception @ org.eclipse.osgi.framework.internal.core.bundleloader.findclassinternal(unknown source) @ org.eclipse.osgi.framework.internal.core.bundleloader.findclass(unknown source) @ org.eclipse.osgi.framework.internal.core.bundleloader.findclass(unknown source) @ org.eclipse.osgi.internal.baseadaptor.defaultclassloader.loadclass(unknown source) @ java.lang.classloader.loadclass(unknown source) ... 74 more 

the rad version 7.5.5.

fep 7.

we seeing same problem across vms(vms copy pasted in differnt machines). there should corrupted in source or not installed. ideas?

you might have possibly resolved issue now. if not, can double check, if jet (java emitter template) package installed , enabled.

you can verify using steps provided in ibm knowledge center : http://www-01.ibm.com/support/knowledgecenter/sszlc2_7.0.0/com.ibm.commerce.component-services.doc/tasks/twvjet.htm