Bug 302152 New path variable created unexpectedly
One of the latest 3.6 IBuilds Steps: 1) Create a general project (let's call is 'project1') 2) Go to Project Properties and make sure that there are only dynamic path variables 2) Drag and drop a folder with a subfolder and files inside to 'project1' In my case it is c:/Folder > SubFolder > a.txt 3) In the "File and Folder Import" dialog, choose 'Automatic' (or later 'Default') and 'Recreate with Virtual Folders and Links' 4) Go to Project Properties again and see that a new variable is added ('C' which is defined relatively to PROJECT_LOC) 5) Open Properties for myProject/Folder/SubFolder/a.txt and see that its location is defined using this new 'C' variable. I should be at least asked if I want Eclipse to create any variables for me.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/PathVariablesGroup.java
* @param variableType the type of variables that are displayed in 
     * 	the widget group. <code>IResource.FILE</code> and/or <code>IResource.FOLDER</code>
     * 	logically ORed together.
     * @param selectionListener listener notified when the selection changes
     * 	in the variables list.
     */
    public PathVariablesGroup(boolean multiSelect, int variableType,
            Listener selectionListener) {
        this(multiSelect, variableType);
        this.selectionListener = selectionListener;
    }
    /**
     * Opens a dialog for creating a new variable.
     */
    private void addNewVariable() {
        
        PathVariableDialog dialog = new PathVariableDialog(shell,
                PathVariableDialog.NEW_VARIABLE, variableType,
                pathVariableManager, tempPathVariables.keySet());
        dialog.setResource(currentResource);
        
        if (dialog.open() == Window.CANCEL) {
			return;
		}
        
        
        String newVariableName = dialog.getVariableName();
        IPath newVariableValue = new Path(dialog.getVariableValue());
        tempPathVariables.put(newVariableName, newVariableValue);