Problems with jheatbugs-2.1 and my Swarm installation (2001-08-25 with JDK 1.2.2 on Solaris 8)

[Gary Polhill]

Having compiled and installed Swarm 2001-08-25 on my Solaris 8 box, and 
successfully compiled and run the objc version of heatbugs, I'm having some 
difficulties with the java heatbugs, which I suspect points more to a problem 
with my compilation skills than with jheatbugs...

I am using jheatbugs-2.1.tar.gz, which I have decompressed and extracted. After 
changing dir to jheatbugs-2.1, I do make, and get the following error:

% make
/software/swarm/swarm-2.1.1/swarm/bin/javacswarm Heatbug.java HeatCell.java 
HeatSpace.java HeatbugModelSwarm.java  HeatbugObserverSwarm.java 
StartHeatbugs.java HeatbugBatchSwarm.java 
HeatbugModelSwarm.java:298: Wrong number of arguments in constructor.
                        new FArgumentsImpl (this, sel, true)));
                        ^
1 error
make: *** [all] Error 1

I modified line 298 of HeabugModelSwarm.java as per the support list archive 
message at 
http://www.santafe.edu/projects/swarm/archive/list-archive.0011/0063.html, 
though interestingly, this says that line 298 in the original should read: new 
FArgumentsImpl (this, sel, Globals.env.LanguageJava)));

Either way, line 298 now reads: new FArgumentsImpl (this, sel)));

Compilation is now successful, but when I do javaswarm StartHeatbugs I get the 
following instead of bright green squares wobbling around on a gradually 
reddening background:

SIGSEGV 11 segmentation violation
    si_signo [11]: SEGV
    si_errno [0]: 
    si_code [1]: SEGV_MAPERR [addr: 0xc346c8f8]

        stackpointer=FFBEDD48
"Finalizer" (TID:0x155e90, sys_thread_t:0x155dc8, state:CW, thread_t: 
address@hidden, threadID:0xfe3c1d78, stack_bottom:0xfe3c2000, 
stack_size:0x20000) prio=8

[1] java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:146)
[2] java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:168)
[3] 
java.lang.ref.Finalizer$FinalizerWorker$FinalizerThread.run(Finalizer.java:124)
-------------------
"Reference Handler" (TID:0x1471e0, sys_thread_t:0x147118, state:CW, thread_t: 
address@hidden, threadID:0xfe3f1d78, stack_bottom:0xfe3f2000, 
stack_size:0x20000) prio=10

[1] java.lang.Object.wait(Object.java:424)
[2] java.lang.ref.Reference$ReferenceHandler.run(Reference.java:136)
-------------------
"Signal dispatcher" (TID:0x12ea00, sys_thread_t:0x12e938, state:MW, thread_t: 
address@hidden, threadID:0xfec51d78, stack_bottom:0xfec52000, 
stack_size:0x20000) prio=10

-------------------
"main" (TID:0x39438, sys_thread_t:0x39370, state:R, thread_t: address@hidden, 
threadID:0x25228, stack_bottom:0xffbf0000, stack_size:0x800000) prio=5 *current 
thread*

[1] swarm.objectbase.ProbeLibraryImpl.getProbeForVariable$inClass(Native Method)
[2] 
HeatbugObserverSwarm$1$HeatbugObserverProbeMap.probeVariable(HeatbugObserverSwarm.java:90)
[3] 
HeatbugObserverSwarm$1$HeatbugObserverProbeMap.addVar(HeatbugObserverSwarm.java:98)
[4] 
HeatbugObserverSwarm$1$HeatbugObserverProbeMap.<init>(HeatbugObserverSwarm.java:105)
[5] HeatbugObserverSwarm.<init>(HeatbugObserverSwarm.java:113)
[6] StartHeatbugs.main(StartHeatbugs.java:25)
-------------------
Abort


As a java newbie this makes little sense to me, but I am vaguely aware of there 
being POSIX threads and Solaris threads and ne'er the twain shall meet. As the 
word "thread" features a great deal in the above error message I am wondering 
if in compiling Swarm or one of its many needed software packages I have 
inadvertantly specified the wrong thread library [Gromit], or even used some 
default thread-disabling configuration option.

All assistance gratefully received...

Gary

Gary Polhill
Research Scientist
The Macaulay Institute
Craigiebuckler
Aberdeen AB15 8QH
UK
Tel: +(44) (0)1224 498200 Ext 2238
Fax: +(44) (0)1224 311556
e-mail: address@hidden
http://www.macaulay.ac.uk/
http://www.macaulay.ac.uk/fearlus/


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