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
fIndent++;
					break;
					
				case Symbols.TokenSEMICOLON:
					
					if (found)
						return fScanner.findNonWhitespaceForward(fPreviousPos, position);
					
					takeNextExit= false; 
					indentBlockLess= false; 
					
					nextToken();
					break;
				
				case Symbols.TokenEOF:
					if (found)
						return fScanner.findNonWhitespaceForward(0, position);
					
					return JavaHeuristicScanner.NOT_FOUND;
					
				 
				
				case Symbols.TokenRBRACE:
					if (found)
						return fScanner.findNonWhitespaceForward(fPreviousPos, position);
					skipScope(Symbols.TokenLBRACE, Symbols.TokenRBRACE);
					takeNextExit= false; 
					indentBlockLess= false; 
					nextToken();
					break;