Java 異常java.lang.IllegalArgumentException: Illegal group reference

當字符串方法replaceAll()中替換字符含有特殊字符$如，

String test  = "<StreamingNo>abc</StreamingNo>";
test = test.replaceAll("abc", "1111111111$$");

會報異常，解決方法為改寫以下形式：

test = test.replaceAll("abc", java.util.regex.Matcher.quoteReplacement("dXNlcjM1NDk2NQ$$"));

參考：http://cuisuqiang.iteye.com/blog/2062173