In a multiplayer game, when opening the grab menu on a specific floor stack of items, the game freezes completely. The console has the same stacktrace repeated continuously, it seems to be executing the same function multiple times per second, and continues that forever such that it locks the game up. Stacktrace:
Dec 23, 2020 3:45:42 PM zombie.GameWindow run
SEVERE: null
java.lang.IllegalArgumentException: Comparison method violates its general contract!
at java.util.TimSort.mergeLo(TimSort.java:777)
at java.util.TimSort.mergeAt(TimSort.java:514)
at java.util.TimSort.mergeCollapse(TimSort.java:441)
at java.util.TimSort.sort(TimSort.java:245)
at java.util.Arrays.sort(Arrays.java:1512)
at java.util.ArrayList.sort(ArrayList.java:1454)
at java.util.Collections.sort(Collections.java:175)
at zombie.iso.IsoObjectPicker.ContextPick(IsoObjectPicker.java:252)
at zombie.ui.UIManager.update(UIManager.java:1377)
at zombie.GameWindow.logic(GameWindow.java:630)
at zombie.GameWindow.run(GameWindow.java:1315)
at zombie.GameWindow.maina(GameWindow.java:1091)
at zombie.gameStates.MainScreenState.main(MainScreenState.java:184)
