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
fOutputLocation= outputLocation;
		
		RootFieldAdapter adapter= new RootFieldAdapter();
		
		fRootDialogField= new StringButtonDialogField(adapter);
		fRootDialogField.setLabelText(NewWizardMessages.NewSourceFolderWizardPage_root_label); 
		fRootDialogField.setButtonLabel(NewWizardMessages.NewSourceFolderWizardPage_root_button); 
		if (fNewElement.getPath() == null) {
			fRootDialogField.setText(""); 
		} else {
			setFolderDialogText(fNewElement.getPath());
		}
		fRootDialogField.setEnabled(fNewElement.getJavaProject() != null);
		
		fExcludeInOthersFields= new SelectionButtonDialogField(SWT.CHECK);
		fExcludeInOthersFields.setLabelText(NewWizardMessages.NewSourceFolderWizardPage_exclude_label); 
		fExcludeInOthersFields.setEnabled(fOrginalPath == null);
		if (!fExcludeInOthersFields.isEnabled()) 
			fExcludeInOthersFields.setSelection(true);
		
		fReplaceExistingField= new SelectionButtonDialogField(SWT.CHECK);
		fReplaceExistingField.setLabelText(NewWizardMessages.NewSourceFolderWizardPage_ReplaceExistingSourceFolder_label); 
		fReplaceExistingField.setEnabled(fOrginalPath == null);
		
		fLinkFields= new LinkFields();
		if (fNewElement.getLinkTarget() != null) {
			fLinkFields.setLinkTarget(fNewElement.getLinkTarget());
		}
		
		fReplaceExistingField.setDialogFieldListener(adapter);