Stack trace happens when running it. This was after recovering a corrupted project file. Looks like some additional null checks should be made.
java.lang.NullPointerException
at burp.egf.getProxyHistory(Unknown Source)
at burp.dqd.getProxyHistory(Unknown Source)
at burp.bcd.getProxyHistory(Unknown Source)
at com.professionallyevil.bc.CorrelatorEngine.doInBackground(CorrelatorEngine.java:61)
at com.professionallyevil.bc.CorrelatorEngine.doInBackground(CorrelatorEngine.java:31)
at java.desktop/javax.swing.SwingWorker$1.call(SwingWorker.java:304)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.desktop/javax.swing.SwingWorker.run(SwingWorker.java:343)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
After some conversation with PortSwigger on this, there does not appear to be a way to reproduce or analyze further. As this seems to be a fluke, I will close the issue for now.
Stack trace happens when running it. This was after recovering a corrupted project file. Looks like some additional null checks should be made.