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
button.setLayoutData(gd);
		button.setSelection(value.equals(getPreferenceStore().getString(key)));
		
		fRadioButtons.add(button);
		return button;
	}
	
	private Text addTextControl(Composite parent, Label labelControl, String key, int indent) {
		GridData gd= new GridData();
		gd.horizontalIndent= indent;
		
		labelControl.setLayoutData(gd);
		
		gd= new GridData(GridData.FILL_HORIZONTAL);
		gd.widthHint= convertWidthInCharsToPixels(40);
		
		Text text= new Text(parent, SWT.SINGLE | SWT.BORDER);
		text.setText(getPreferenceStore().getString(key));
		text.setData(key);
		text.setLayoutData(gd);
		
		fTextControls.add(text);
		return text;
	}	
	
	
	protected Control createContents(Composite parent) {
		initializeDialogUnits(parent);
		
		Composite result= new Composite(parent, SWT.NONE);