Crash on Launch, MacOSX JDK 1.5 - jitlib suspected


    May 07 2006 | 4:27 pm
    I have been having some serious problems with starting MaxMSP ever since I installed Java 5.0/JDK 1.5 on MacOSX, an upgrade that has was installed by Apple's Software Update application. This only happens on my laptop, a 667MHz G4 with 512M RAM running OSX 10.4.2.
    I have tried reinstalling MaxMSP. Everything is fine until I install Jitter. Then Max crashes shortly after startup. Here's the beginning of the crash log:
    Date/Time: 2006-05-07 10:26:31.325 -0500 OS Version: 10.4.6 (Build 8I127) Report Version: 4
    Command: MaxMSP 4.5.app Path: /Applications/MaxMSP 4.5/MaxMSP 4.5.app Parent: WindowServer [66]
    Version: 4.5.7 (4.5.7 - 3 February 2006)
    PID: 313 Thread: 0
    Exception: EXC_BAD_ACCESS (0x0001) Codes: KERN_PROTECTION_FAILURE (0x0002) at 0x00000010
    Thread 0 Crashed: 0 mxj{ 0x04b7ac14 construct + 256 1 mxj{ 0x04b7a26c maxjava_new + 1368 2 MaxPPC3.1pwpc 0x00436f78 typedmess_fun + 152 3 MaxPPC3.1pwpc 0x00536430 object_new_typed + 164 4 MaxPPC3.1pwpc 0x00429744 auxtable_search + 156 5 MaxPPC3.1pwpc 0x0042baf8 extload + 220 6 MaxPPC3.1pwpc 0x0042be3c newload_internal + 524 7 MaxPPC3.1pwpc 0x0042bbe4 newload + 52 8 MaxPPC3.1pwpc 0x00436f78 typedmess_fun + 152 9 MaxPPC3.1pwpc 0x00436c60 typedmess + 92 10 MaxPPC3.1pwpc 0x0046d968 newinstance + 44 11 jitlib 0x0445beec jit_java_init + 496 12 jitlib 0x0443fab8 initialize + 464 13 ...ple.CoreServices.CarbonCore 0x90bea8bc InitializeOneConnection + 504 14 ...ple.CoreServices.CarbonCore 0x90bea68c InitializeConnections + 136 15 ...ple.CoreServices.CarbonCore 0x90be76f8 PrepareClosure + 364 16 ...ple.CoreServices.CarbonCore 0x90be63b4 PCFragPrepareClosureFromFile + 468 17 ...ple.CoreServices.CarbonCore 0x90be4c84 GetDiskFragment + 288 18 MaxPPC3.1pwpc 0x00429bd0 external_fragload + 316 19 MaxPPC3.1pwpc 0x00429610 external_load + 316 20 MaxPPC3.1pwpc 0x0046a564 startup_load + 216 21 MaxPPC3.1pwpc 0x0042c288 main + 680
    This seems to point to jitlib.
    I have had numerous unresolved problems with mxj on this machine. YOu can check the archives. They were only nuisances, so I did not complain at any length. I did go so far as to get an iLok and install MaxMSP + Jitter onto another machine, a 950Mhz G4 with 1M RAM running MACOSX 10.4.6. It also has Java 5.0/JDK 1.5 installed and all the externals I use on the laptop. I have no problems.
    I have not been able to find any advice in the forums, but maybe I just am not entering the right search criteria.
    Are there know problems with JDK 1.5 and jitlib on MacOSX?
    -- Paul

    • May 08 2006 | 5:33 am
      Okay, I'll reply to myself and hope someone from Cycling74 can follow up on this.
      When I remove jitter.jar from Library/Application Support/Cycling '74/java/lib/ I can then launch MaxMSP.
      Obviously I won't have any Java control over Jitter if I do that. I don't want that to be my solution.
      It seems clear to me that there is some incompatibility between jitter.jar and my Java installation.
      I have removed all my preferences, reinstalled my MaxMSP/JItter installation with no non-c74 externals, modified the classpaths in .bash_profile (worth a try), etc.
      I can't seem to isolate the problem elsewhere in such a way that jitter.jar can be installed.
      -- Paul
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    • May 09 2006 | 9:33 pm
      Hi Paul - sorry for the delay in replying to your original message.
      In the last thread on the max-msp list where you reported problems with mxj, you mentioned that reverting to the older versions of mxj and mxj~ fixed your problem. Topher pointed out that this probably means that your java installation is probably using an out-of-date version of max.jar. You replied to this email, but it wasn't clear from your reply what steps you had taken to make sure your max.jar file was up-to-date. I would 1. trash all instances of max.jar and jitter.jar on your hard drive. do a thorough search. 2. reinstall Max/MSP
      if you haven't already tried this, do it and report back if there are still problems. thanks! Ben
    • May 10 2006 | 4:26 am
      Ben,
      Right. that's what I did. A clean install of MaxMSP & Jitter. I zipped my old Cycling74 folder to keep my externals around, then trashed it. Also searched for copies of jitter.jar or max.jar and trashed those. Restarted. Got the same error, pretty much as you see it in my first message in this thread, every time. At least it's consistent.
      This has been a difficult problem to track down. I can claim some expertise in Java--I write code in my day job--but it is a big, multi-leveled language, and I can't claim any knowledge of how applications interface with the VM. My guess would be that there is where the problem originates, but I am not sure.
      For one project I am currently working on, access to Jitter/OpenGL via mxj could be very useful. I think after a year of fighting with this problem, I'd like to solve it once and for all.
      thanks,
      -- Paul
    • May 10 2006 | 3:31 pm
      Hi Paul, It seems like it's time to take this problem into C74 Support. As it seems there is something specific to your machine, it will be much more efficient for us to communicate directly off-list. Send an email to support@cycling74.com, and be sure to include as much detail as possible.
      Thanks, Andrew B.
    • May 11 2006 | 5:54 pm
      Andrew,
      In the process of documenting my system, I think I have solved the problem. System Profiler found a stale copy of max.jar that was not located by Spotlight (I should have used the Unix locate command). It was located in /Library/Java/Extensions/, where I had placed it when compiling mxj classes using XCode.
      The old max.jar in the Extensions folder was getting loaded before the max.jar in Cycling '74 Support, and causing the current crashes and earlier non-fatal errors from mxj.
      I'm working on a solution for setting the classpath in XCode instead of copying the jar files, and almost have it working. That would be better to discuss on the Java-Dev forum.
      Meanwhile, thanks for getting back to me--at least it kicked me into the close examination of my system that was needed to find the problem.
      -- Paul
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