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It appears that the innocuous pattern is generating a pattern syntax expression: 

  String pattern = "^ (?.: *) \\ * {$" s; // is pattern: ^ (?:. *) \ S * {$   
 As you can see when you are looking at it, it seems that working properly .  
 For example, that string should match:  
  name {  
 The message I'm bringing back is " Index 9 has illegal repetition "but I do not know what I am doing, which is illegal, criminal character should match any number of white space between the final section and <{p> 
 Is anyone wrong who I am?   
 
 
 prevent you from  { to  \\  is required.

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