Bug 43032 Autoindent/Smart Tab in case statement
... case label: { <press Enter here> I <new cursor position> Indentation level should be one less.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/JavaIndenter.java
private int prefArrayDimensionIndent() {
		
		return 2;
	}
	private boolean prefArrayDimensionsDeepIndent() {
		
		return true;
	}
	private boolean prefMethodDeclDeepIndent() {
		
		return true;
	}
	private int prefCallContinuationIndent() {
		
		return 2;
	}
	private int prefArrayIndent() {
		
		return 2;
	}
	private boolean prefArrayDeepIndent() {
		
		return false;
	}
	private boolean prefTenaryDeepAlign() {
		
		return true;
	}
}