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Failed to open Jython JAR file in Burp Suite in macOS Big Sur

Mohamed | Last updated: Sep 02, 2021 05:05PM UTC

Failed to open Jython JAR file in Burp Suite, only getting this error for Python based Extensions, Java based ones are installing and loading ok. Only change I did was installing iTerm2 and oh-my-zsh, may be this screwed up the path for python or Jython paths. Error message --> java.lang.Exception: Failed to open Jython JAR file at burp.h_1.<init>(Unknown Source) at burp.ah5.a(Unknown Source) at burp.evt.lambda$panelLoaded$0(Unknown Source) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) at java.base/java.lang.Thread.run(Thread.java:832)

Ben, PortSwigger Agent | Last updated: Sep 03, 2021 12:41PM UTC

Hi Mohamed, Can you confirm which Jython Jar file you are trying to use? Out of interest, did this used to work for you prior to installing iTerm2 and oh-my-zsh or is this the first time that you have tried to install Python based extensions?

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