Bug 123233 [build path] link source wizard creates invalid folder
20060110 - Open build paty > link source - enter a source folder name but leave the location empty - folder is created - Open the properties on the new folder -> NPE java.lang.NullPointerException at org.eclipse.core.internal.filesystem.InternalFileSystemCore.getFileSystem(InternalFileSystemCore.java:62) at org.eclipse.core.filesystem.EFS.getFileSystem(EFS.java:248) at org.eclipse.ui.internal.ide.dialogs.ResourceInfoPage.createStateGroup(ResourceInfoPage.java:428) at org.eclipse.ui.internal.ide.dialogs.ResourceInfoPage.createContents(ResourceInfoPage.java:251) at org.eclipse.jface.preference.PreferencePage.createControl(PreferencePage.java:232) at org.eclipse.jface.preference.PreferenceDialog.createPageControl(PreferenceDialog.java:1371) at org.eclipse.jface.preference.PreferenceDialog$12.run(PreferenceDialog.java:1138) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37) at org.eclipse.core.runtime.Platform.run(Platform.java:785) at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:44) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:148) at org.eclipse.jface.preference.PreferenceDialog.showPage(PreferenceDialog.java:1132) at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.showPage(FilteredPreferenceDialog.java:350) at org.eclipse.jface.preference.PreferenceDialog$8.selectionChanged(PreferenceDialog.java:638) at org.eclipse.jface.viewers.StructuredViewer$3.run(StructuredViewer.java:802) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37) at org.eclipse.core.runtime.Platform.run(Platform.java:785) at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:44) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:148) at org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(StructuredViewer.java:800) at org.eclipse.jface.viewers.StructuredViewer.setSelection(StructuredViewer.java:1511) at org.eclipse.jface.preference.PreferenceDialog.selectSavedItem(PreferenceDialog.java:925) at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.selectSavedItem(FilteredPreferenceDialog.java:393)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/AddSourceFolderWizardPage.java
String title= NewWizardMessages.NewSourceFolderWizardPage_ChooseExistingRootDialog_title; 
			String message= NewWizardMessages.NewSourceFolderWizardPage_ChooseExistingRootDialog_description; 
			IFolder folder= chooseFolder(title, message, initialPath);
			if (folder != null) {
				setFolderDialogText(folder.getFullPath());
			}
		}
	}
	private void setFolderDialogText(IPath path) {
		IPath shortPath= path.removeFirstSegments(1);
		fRootDialogField.setText(shortPath.toString());
	}	
	
	protected void packRootDialogFieldChanged() {
		StatusInfo status= updateRootStatus();
		updateStatus(new IStatus[] {status});
	}
	private StatusInfo updateRootStatus() {		
		IJavaProject javaProject= fNewElement.getJavaProject();		
		IProject project= javaProject.getProject();
		
		StatusInfo pathNameStatus= validatePathName(fRootDialogField.getText(), project);
		
		if (!pathNameStatus.isOK())
			return pathNameStatus;
		
		StatusInfo result= new StatusInfo();
		result.setOK();
		IPath projPath= project.getFullPath();	
		IPath path= projPath.append(fRootDialogField.getText());