https://bugs.eclipse.org/bugs/show_bug.cgi?id=303317

Fixed this bug upstream but not sure if they'll accept the patch I'm not sure if there's already a bug here for it but I'll dup it if there is.

Build Identifier: I20090528-2000

Path for project must have only one segment.

java.lang.IllegalArgumentException: Path for project must have only one
segment.
at org.eclipse.core.runtime.Assert.isLegal(Assert.java:63)
at
org.eclipse.core.internal.resources.WorkspaceRoot.getProject(WorkspaceRoot.java:181)
at
org.eclipse.wst.common.project.facet.core.internal.FacetedProjectWorkingCopy.getFacetedProject(FacetedProjectWorkingCopy.java:428)
at
org.eclipse.jst.common.project.facet.core.libprov.LibraryInstallDelegate.refresh(LibraryInstallDelegate.java:376)
at
org.eclipse.jst.common.project.facet.core.libprov.LibraryInstallDelegate$2.handleEvent(LibraryInstallDelegate.java:132)
at
org.eclipse.wst.common.project.facet.core.internal.FacetedProjectWorkingCopy.notifyListeners(FacetedProjectWorkingCopy.java:1690)
at
org.eclipse.wst.common.project.facet.core.internal.FacetedProjectWorkingCopy.resumeEventNotification(FacetedProjectWorkingCopy.java:1735)
at
org.eclipse.wst.common.project.facet.core.internal.FacetedProjectWorkingCopy.setTargetedRuntimes(FacetedProjectWorkingCopy.java:1237)
at
org.jboss.tools.seam.ui.wizard.SeamProjectWizard.setRuntimeAndDefaultFacets(SeamProjectWizard.java:222)
at
org.eclipse.wst.web.ui.internal.wizards.NewProjectDataModelFacetWizard$2.propertyChanged(NewProjectDataModelFacetWizard.java:215)
at
org.eclipse.wst.common.frameworks.internal.datamodel.DataModelImpl.notifyListeners(DataModelImpl.java:346)
at
org.eclipse.wst.common.frameworks.internal.datamodel.DataModelImpl.notifyPropertyChange(DataModelImpl.java:337)

Reproducible: Always

Steps to Reproduce:
EXECUTE: New dynamic web project.
EXECUTE: Input project name "test2/2"
ASSERT: Warning, related to incorrect project name appears.
EXECUTE: Change Server runtime
FAILURE: Two same exceptions thrown in error log each time, when runtime
changes.