Saturday, 24 March 2018

Log4j not printing the stacktrace for exception

I've noticed interesting behavior in the server logs on jdk 8. There was an exception without stack trace. After small research I have found that hotspot may apply some optimization to exceptions that are thrown too frequent, it simply trim stack trace) So I scrolled to the first occurrences of the exception and found my stack trace. Here is oracle docs describing it:

http://www.oracle.com/technetwork/java/javase/relnotes-139183.html

and you can disable it with -XX:-OmitStackTraceInFastThrow

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