Bug 29003 Preferences 'Output Folder Name' needs to allow '/' in the path [build path]
In the window/preferences/Java/New Project panel, when 'Folders' radio button is set, the 'output folder name' cannot be set to something like 'WEB- INF/classes'. The error message "'/' is an invalid character" appears. However, when setting the output path on the project (project/properties), 'WEB- INF/classes' is allowed, as the '/' is valid. Please change the window/preferences to allow a '/' in output folder name, so this value can be set by default.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/NewJavaProjectPreferencePage.java
}
		for (int i= 0; i < fRadioButtons.size(); i++) {
			Button button= (Button) fRadioButtons.get(i);
			String[] info= (String[]) button.getData();
			button.setSelection(info[1].equals(store.getDefaultString(info[0])));
		}
		for (int i= 0; i < fTextControls.size(); i++) {
			Text text= (Text) fTextControls.get(i);
			String key= (String) text.getData();
			text.setText(store.getDefaultString(key));
		}
		if (fJRECombo != null) {
			fJRECombo.select(store.getDefaultInt(CLASSPATH_JRELIBRARY_INDEX));
		}
		
		validateFolders();
		super.performDefaults();
	}
	/*
	 * @see IPreferencePage#performOk()
	 */
	public boolean performOk() {
		IPreferenceStore store= getPreferenceStore();
		for (int i= 0; i < fCheckBoxes.size(); i++) {
			Button button= (Button) fCheckBoxes.get(i);
			String key= (String) button.getData();
			store.setValue(key, button.getSelection());
		}
		for (int i= 0; i < fRadioButtons.size(); i++) {
			Button button= (Button) fRadioButtons.get(i);