Looking at the stack in one of those files:
Stack: [0x0000000015110000,0x0000000015210000], sp=0x000000001520edb8, free space=1019k
Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j org.lwjgl.openal.EFX10.nalGenFilters2(I)I+0
j org.lwjgl.openal.EFX10.alGenFilters()I+1
j com.fs.starfarer.Object.return.Ó00000(FF)V+17
j com.fs.starfarer.Object.return.õ00000(FF)V+16
j com.fs.starfarer.Object.return.o00000(F)V+142
j com.fs.starfarer.Object.I.super(FFFFFI)V+20
j com.fs.starfarer.campaign.CampaignState.advance(FLcom/fs/starfarer/util/oOOO/OoOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO;)V+585
j com.fs.starfarer.BaseGameState.traverse()Ljava/lang/String;+300
j com.fs.state.AppDriver.begin()V+100
j com.fs.starfarer.combat.CombatMain.main([Ljava/lang/String;)V+677
j com.fs.starfarer.StarfarerLauncher$1.run()V+320
j java.lang.Thread.run()V+11
v ~StubRoutines::call_stub
Some sort of OpenAL issue, looks like. Apparently this sort of thing can also happen if you don't have any audio device plugged in but run w/ sound enabled.