Replace\remove last occurrence of a string using regular expressions

Try this regex (^.+)b(.+$)

Example (Remove the last b character)

    System.out.println("1abchhhabcjjjabc".replaceFirst("(^.+)b(.+$)", "$1$2"));

 Outputs (Notice the underlined portion of string)
   1abchhhabcjjjac

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