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JAVACLASS (?:[a-zA-Z$_][a-zA-Z$_0-9]*\.)*[a-zA-Z$_][a-zA-Z$_0-9]*
#Space is an allowed character to match special cases like 'Native Method' or 'Unknown Source'
JAVAFILE (?:[A-Za-z0-9_. -]+)
#Allow special <init> method
JAVAMETHOD (?:(<init>)|[a-zA-Z$_][a-zA-Z$_0-9]*)
#Line number is optional in special cases 'Native method' or 'Unknown source'
JAVASTACKTRACEPART %{SPACE}at %{JAVACLASS:class}\.%{JAVAMETHOD:method}\(%{JAVAFILE:file}(?::%{NUMBER:line})?\)
