Question

Is there a way to forward the garbage collection information (for example the output of -XX:+PrintGCDetails or -verbose:gc) to a logger within the Java application (sl4j + logback in my case)?

Answer 1

Those messages are generated by the JVM native process and not from Java code, so you just can

1. Redirect output to file using -Xloggc (no rotation)
   • How to redirect verbose garbage collection output to a file?
2. Pipe stdout directly (several rotation options)
   • Log rotation of stdout?
   • Rolling garbage collector logs in java
   • Garbage collector log (loggc) file rotation with logrotate does not work properly