Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via GitHub by louwers
, 1 year ago
via Mojang JIRA by CrustySaturn23, 1 year ago
Failed to check session lock, aborting
java.lang.RuntimeException: Failed to check session lock, aborting	at azy.i(SourceFile:64)	at azy.(SourceFile:50)	at azv.(SourceFile:21)	at azw.a(SourceFile:83)	at wdl.WDL.startDownload(	at wdl.WDL$2.onSelect(	at wdl.gui.GuiWDLMultiworld.a(	at bft.a(SourceFile:346)	at wdl.gui.GuiWDLMultiworld.a(	at bft.k(SourceFile:409)	at bft.p(SourceFile:386)	at bcx.t(SourceFile:1586)	at bcx.av(SourceFile:968)	at bcx.a(SourceFile:396)	at net.minecraft.client.main.Main.main(SourceFile:124)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(	at sun.reflect.DelegatingMethodAccessorImpl.invoke(	at java.lang.reflect.Method.invoke(	at net.minecraft.launchwrapper.Launch.launch(	at net.minecraft.launchwrapper.Launch.main(