I dunno if this is Minecraft related or Bukkit related, but, I got a "fatal error" through Java, and this was the log it gave me. I suppose this could be useful to someone. Code: # # A fatal error has been detected by the Java Runtime Environment: # # EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x6d9972c7, pid=3200, tid=888 # # JRE version: 6.0_22-b04 # Java VM: Java HotSpot(TM) Client VM (17.1-b03 mixed mode windows-x86 ) # Problematic frame: # V [jvm.dll+0x1a72c7] # # If you would like to submit a bug report, please visit: # http://java.sun.com/webapps/bugreport/crash.jsp # --------------- T H R E A D --------------- Current thread (0x48c40800): VMThread [stack: 0x48cd0000,0x48d20000] [id=888] siginfo: ExceptionCode=0xc0000005, reading address 0x62a94718 Registers: EAX=0x42a945c8, EBX=0x42a952d8, ECX=0x62a946e8, EDX=0x00000001 ESP=0x48d1fe0c, EBP=0x48d1fe10, ESI=0x62a946e8, EDI=0x00000011 EIP=0x6d9972c7, EFLAGS=0x00010206 Top of Stack: (sp=0x48d1fe0c) 0x48d1fe0c: 0000002c 48d1fe28 6d8d1081 62a946e8 0x48d1fe1c: 0000000d 003b55d0 00000000 48d1fe44 0x48d1fe2c: 6d99735d 6d9972c0 0000000e 88888888 0x48d1fe3c: 40402888 0000000d 48d1fea4 6d99741a 0x48d1fe4c: 7c801a81 ffffffff 48d1fe78 48d1fe7c 0x48d1fe5c: 7c90d8ba 7c80a4db 48d1fe8c 48d1fe6c 0x48d1fe6c: ca271940 00000000 48010100 6d971cda 0x48d1fe7c: 00000000 00000000 48d1fea0 48d1fea4 Instructions: (pc=0x6d9972c7) 0x6d9972b7: cc cc cc cc cc cc cc cc cc 55 8b ec 56 8b 75 08 0x6d9972c7: 8b 56 30 8b c2 c1 e8 03 8b c8 d1 f9 85 c0 7e 09 Stack: [0x48cd0000,0x48d20000], sp=0x48d1fe0c, free space=13f48d1f980k Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) V [jvm.dll+0x1a72c7] V [jvm.dll+0xe1081] V [jvm.dll+0x1a735d] V [jvm.dll+0x1a741a] V [jvm.dll+0x1a8065] V [jvm.dll+0x1ff7e2] V [jvm.dll+0x1ffd02] V [jvm.dll+0x185f3c] C [msvcr71.dll+0x9565] C [kernel32.dll+0xb729] --------------- P R O C E S S --------------- Java Threads: ( => current thread ) 0x48f7ac00 JavaThread "Timer-1" [_thread_blocked, id=2036, stack(0x49440000,0x49490000)] 0x48fb8c00 JavaThread "Timer-0" daemon [_thread_blocked, id=2256, stack(0x49390000,0x493e0000)] 0x48f55c00 JavaThread "Thread-3" [_thread_blocked, id=1788, stack(0x49330000,0x49380000)] 0x48f9fc00 JavaThread "Listen thread" [_thread_in_native, id=3900, stack(0x492e0000,0x49330000)] 0x48f61800 JavaThread "Thread-2" daemon [_thread_in_native, id=3700, stack(0x491f0000,0x49240000)] 0x003b6400 JavaThread "DestroyJavaVM" [_thread_blocked, id=976, stack(0x00910000,0x00960000)] 0x48cbb800 JavaThread "Server thread" [_thread_blocked, id=3300, stack(0x491a0000,0x491f0000)] 0x48cbd400 JavaThread "Thread-1" daemon [_thread_blocked, id=3092, stack(0x49150000,0x491a0000)] 0x48c67400 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=3288, stack(0x48eb0000,0x48f00000)] 0x48c58800 JavaThread "CompilerThread0" daemon [_thread_blocked, id=596, stack(0x48e60000,0x48eb0000)] 0x48c57000 JavaThread "Attach Listener" daemon [_thread_blocked, id=3640, stack(0x48e10000,0x48e60000)] 0x48c55c00 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=3616, stack(0x48dc0000,0x48e10000)] 0x48c47c00 JavaThread "Finalizer" daemon [_thread_blocked, id=4068, stack(0x48d70000,0x48dc0000)] 0x48c43000 JavaThread "Reference Handler" daemon [_thread_blocked, id=1248, stack(0x48d20000,0x48d70000)] Other Threads: =>0x48c40800 VMThread [stack: 0x48cd0000,0x48d20000] [id=888] 0x48c69400 WatcherThread [stack: 0x48f00000,0x48f50000] [id=1648] VM state:at safepoint (normal execution) VM Mutex/Monitor currently owned by a thread: ([mutex/lock_event]) [0x003b5500] Safepoint_lock - owner thread: 0x48c40800 [0x003b5568] Threads_lock - owner thread: 0x48c40800 Heap def new generation total 314560K, used 162305K [0x02a10000, 0x17f60000, 0x17f60000) eden space 279616K, 58% used [0x02a10000, 0x0c890698, 0x13b20000) from space 34944K, 0% used [0x13b20000, 0x13b20000, 0x15d40000) to space 34944K, 0% used [0x15d40000, 0x15d40000, 0x17f60000) tenured generation total 699072K, used 0K [0x17f60000, 0x42a10000, 0x42a10000) the space 699072K, 0% used [0x17f60000, 0x17f60000, 0x17f60200, 0x42a10000) compacting perm gen total 12288K, used 6740K [0x42a10000, 0x43610000, 0x46a10000) the space 12288K, 54% used [0x42a10000, 0x430a5170, 0x430a5200, 0x43610000) No shared spaces configured. Dynamic libraries: 0x00400000 - 0x00424000 C:\WINDOWS\system32\java.exe 0x7c900000 - 0x7c9b2000 C:\WINDOWS\system32\ntdll.dll 0x7c800000 - 0x7c8f6000 C:\WINDOWS\system32\kernel32.dll 0x77dd0000 - 0x77e6b000 C:\WINDOWS\system32\ADVAPI32.dll 0x77e70000 - 0x77f03000 C:\WINDOWS\system32\RPCRT4.dll 0x77fe0000 - 0x77ff1000 C:\WINDOWS\system32\Secur32.dll 0x7c340000 - 0x7c396000 C:\Program Files\Java\jre6\bin\msvcr71.dll 0x6d7f0000 - 0x6da97000 C:\Program Files\Java\jre6\bin\client\jvm.dll 0x7e410000 - 0x7e4a1000 C:\WINDOWS\system32\USER32.dll 0x77f10000 - 0x77f59000 C:\WINDOWS\system32\GDI32.dll 0x76b40000 - 0x76b6d000 C:\WINDOWS\system32\WINMM.dll 0x76390000 - 0x763ad000 C:\WINDOWS\system32\IMM32.DLL 0x6d7a0000 - 0x6d7ac000 C:\Program Files\Java\jre6\bin\verify.dll 0x6d320000 - 0x6d33f000 C:\Program Files\Java\jre6\bin\java.dll 0x6d280000 - 0x6d288000 C:\Program Files\Java\jre6\bin\hpi.dll 0x76bf0000 - 0x76bfb000 C:\WINDOWS\system32\PSAPI.DLL 0x6d7e0000 - 0x6d7ef000 C:\Program Files\Java\jre6\bin\zip.dll 0x6d600000 - 0x6d613000 C:\Program Files\Java\jre6\bin\net.dll 0x71ab0000 - 0x71ac7000 C:\WINDOWS\system32\WS2_32.dll 0x77c10000 - 0x77c68000 C:\WINDOWS\system32\msvcrt.dll 0x71aa0000 - 0x71aa8000 C:\WINDOWS\system32\WS2HELP.dll 0x6d620000 - 0x6d629000 C:\Program Files\Java\jre6\bin\nio.dll 0x71a50000 - 0x71a8f000 C:\WINDOWS\system32\mswsock.dll 0x662b0000 - 0x66308000 C:\WINDOWS\system32\hnetcfg.dll 0x71a90000 - 0x71a98000 C:\WINDOWS\System32\wshtcpip.dll 0x76f20000 - 0x76f47000 C:\WINDOWS\system32\DNSAPI.dll 0x76fb0000 - 0x76fb8000 C:\WINDOWS\System32\winrnr.dll 0x76f60000 - 0x76f8c000 C:\WINDOWS\system32\WLDAP32.dll 0x76fc0000 - 0x76fc6000 C:\WINDOWS\system32\rasadhlp.dll VM Arguments: jvm_args: -Xms1024M -Xmx1024M java_command: craftbukkit-0.0.1-SNAPSHOT.jar nogui Launcher Type: SUN_STANDARD Environment Variables: PATH=C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\system32\WBEM;C:\Program Files\Java\jre6\bin USERNAME=BASEMENT SERVER OS=Windows_NT PROCESSOR_IDENTIFIER=x86 Family 15 Model 3 Stepping 4, GenuineIntel --------------- S Y S T E M --------------- OS: Windows XP Build 2600 Service Pack 3 CPU:total 2 (1 cores per cpu, 2 threads per core) family 15 model 3 stepping 4, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ht Memory: 4k page, physical 2349132k(1562588k free), swap 4289924k(2832404k free) vm_info: Java HotSpot(TM) Client VM (17.1-b03) for windows-x86 JRE (1.6.0_22-b04), built on Sep 15 2010 00:56:36 by "java_re" with MS VC++ 7.1 (VS2003) time: Tue Feb 22 15:44:21 2011 elapsed time: 754 seconds