On my machine (Sparc 5 running SunOS 5.4) I get a seg fault on starting
the interpreter with any arbitrary class file. This is with the Nov 20
promoted build. Mark Reinhold is investigating this.

%java1.1 Test
SIGSEGV 11* segmentation violation
    si_signo [11]: SIGSEGV 11* segmentation violation
    si_errno [0]: Error 0
    si_code [1]: SEGV_ACCERR [addr: 0x18]

stackbase=0, stackpointer=0

Full thread dump:
    NULL (TID:0xee300150, sys_thread_t:0x57cd8, state:R) prio=5 *current thread*
java.lang.System.getProperty(System.java)
java.io.CharToByteConverter.<clinit>(CharToByteConverter.java)
java.io.OutputStreamWriter.<init>(OutputStreamWriter.java)
java.io.OutputStreamWriter.<init>(OutputStreamWriter.java)
java.io.PrintStream.<init>(PrintStream.java)
java.lang.System.<clinit>(System.java)
java.lang.String.getChars(String.java)
java.lang.StringBuffer.append(StringBuffer.java)
java.lang.StringBuffer.<init>(StringBuffer.java)
java.lang.Thread.<init>(Thread.java)
Monitor Cache Dump:
java.lang.Class@EE3002E8/EE3351E0 (key=0xee3002e8): monitor owner 57cd8: NULL
unknown key (key=0xef5edc18): monitor owner 57cd8: NULL
java.lang.Class@EE3001B8/EE3340C0 (key=0xee3001b8): monitor owner 57cd8: NULL
java.lang.Class@EE300028/EE3334C0 (key=0xee300028): monitor owner 57cd8: NULL
java.lang.StringBuffer@EE300198/EE334050 (key=0xee300198): monitor owner 57cd8: NULL
java.lang.Class@EE300300/EE3352A0 (key=0xee300300): monitor owner 57cd8: NULL
Registered Monitor Dump:
    Thread queue lock: unowned
    Name and type hash table lock: unowned
    String intern lock: unowned
    JNI global reference lock: unowned
    BinClass lock: unowned
    Class loading lock: unowned
    Java stack lock: unowned
    Code rewrite lock: unowned
    Heap lock: unowned
    Has finalization queue lock: unowned
    Monitor IO lock: unowned
    Child death monitor: unowned
    Event monitor: unowned
    I/O monitor: monitor owner 57cd8: NULL
    Alarm monitor: unowned
    Sbrk lock: unowned
    Monitor cache expansion lock: unowned
    Monitor registry: monitor owner 57cd8: NULL
Thread Alarm Q:
    sys_thread_t 0x57cd8 [Timeout in 24852 ms]
Abort - core dumped


Looking at the back trace in dbx using command
dbx /usr/local/java/jdk1.1/solaris/bin/sparc/green_threads/java core:

Reading symbolic information for java
core file header read successfully
Reading symbolic information for rtld /usr/lib/ld.so.1
Reading symbolic information for libjava.so
Reading symbolic information for libm.so.1
Reading symbolic information for libdl.so.1
Reading symbolic information for libX11.so.4
Reading symbolic information for libsocket.so.1
Reading symbolic information for libnsl.so.1
Reading symbolic information for libresolv.so.1
Reading symbolic information for libc.so.1
Reading symbolic information for libXext.so.0
Reading symbolic information for libw.so.1
Reading symbolic information for libintl.so.1
Reading symbolic information for nss_files.so.1
Reading symbolic information for nss_nis.so.1
Reading symbolic information for straddr.so
program terminated by signal ABRT (Abort)
(/usr/dist/local/pkgs/sunpro/5.x-sparc/bin/dbx) where
=>[1] _kill(0x0, 0x6, 0x1, 0xef53dcb0, 0xef540778, 0xef73fbe0), at 0xef521830
  [2] abort(0xb, 0xef78c400, 0xefffd1b8, 0x0, 0x1, 0x0), at 0xef4ed7ec
  ---- called from signal handler with signal 11 (SIGSEGV) ------
  [3] queueSignal(), at 0xef769704
  [4] sysMonitorWait(0x20ab0, 0x61a7, 0x0, 0x57cd8, 0x0, 0x3e8), at 0xef769fa8
  [5] poll(0x0, 0xef784c00, 0x61a7, 0xef78c660, 0xef544000, 0x0), at 0xef768eb4
  [6] read_vc(0x1, 0x0, 0x2000, 0x75164, 0x400, 0xef5f8368), at 0xef5ab3f0
  [7] fill_input_buf(0x73030, 0xef78c628, 0xef78c628, 0x0, 0x0, 0x838c0), at 0xef5bb70c
  [8] get_input_bytes(0x73030, 0xefffd714, 0x4, 0x73060, 0x7305c, 0x0), at 0xef5bb76c
  [9] set_input_fragment(0x73030, 0xefffd774, 0x0, 0x0, 0x48, 0x750f0), at 0xef5bb7d8
  [10] xdrrec_getbytes(0x0, 0xefffd7dc, 0x4, 0x73068, 0x73030, 0x73064), at 0xef5bb134
  [11] xdrrec_getlong(0x751a0, 0xefffd8cc, 0x818c0, 0x818c4, 0x858c0, 0x73030), at 0xef5bb064
  [12] xdr_replymsg(0x751a0, 0xefffd8cc, 0x0, 0x818c0, 0x73068, 0x73030), at 0xef5b04ec
  [13] clnt_vc_call(0x2, 0x75178, 0x3297428b, 0x0, 0xef5b9f20, 0x751a0), at 0xef5aaa50
  [14] ypbindproc_domain_3(0xefffd9ec, 0x70580, 0x19, 0xef5ef740, 0x767a0, 0xef5f6c78), at 0xef5becb4
  [15] __yp_dobind(0x42820, 0xefffda7c, 0x70580, 0xfffffffc, 0x0, 0xefffda80), at 0xef5bf4e8
  [16] yp_match(0x42820, 0xef463900, 0xefffdbb4, 0x5, 0xefffdb4c, 0xefffdb48), at 0xef5c07fc
  [17] _nss_nis_ypmatch(0x42820, 0xef463900, 0xefffdbb4, 0xefffdb4c, 0xefffdb48, 0x0), at 0xef4616c4
  [18] _nss_nis_lookup(0x42780, 0xefffdc88, 0x0, 0xef463900, 0xefffdbb4, 0x0), at 0xef461744
  [19] getbyuid(0x42780, 0xefffdc88, 0x42780, 0x7a7f8, 0x0, 0x1), at 0xef461da8
  [20] _nss_search(0x30, 0x42780, 0x5, 0xefffdc88, 0x1, 0x1), at 0xef50a4f4
  [21] _getpwuid_r(0x791a, 0x74674, 0x74698, 0x400, 0xee3005e0, 0x74668), at 0xef520508
  [22] java_lang_System_initProperties(0xee300350, 0xee300350, 0xef78a600, 0x6d750, 0xeffffd23, 0xef78c664), at 0xef7640f8
  [23] Java_java_lang_System_initProperties_stub(0x230c8, 0xef784bc0, 0xef784bc0, 0x400, 0xee3001b8, 0xee335799), at 0xef73e1c4
  [24] invokeNativeMethod(0x230c8, 0x6bcc0, 0x230a0, 0xef784bc0, 0xef73c238, 0x6bdbc), at 0xef73c400
  [25] finish_invokevirtual(0x6c1f2, 0xef784bc0, 0x230c8, 0x2309c, 0x6acf0, 0x230a0), at 0xef76c4e0
  [26] do_execute_java_method_vararg(0x0, 0x23014, 0x2304c, 0x75579, 0x76208, 0x1), at 0xef74832c
  [27] do_execute_java_method(0xef784bc0, 0xee300300, 0x0, 0x0, 0x76208, 0x1), at 0xef747c88
  [28] RunStaticInitializers(0xef784bc0, 0xef784524, 0x76208, 0xee300300, 0x457e0, 0x0), at 0xef73cf68
  [29] RuntimeInitClass(0x0, 0xee300300, 0x58b40, 0xfffd, 0x0, 0xee300300), at 0xef73747c
  [30] Locked_ResolveClass(0xee300300, 0xefffe68c, 0xfc00, 0xee300010, 0xee300300, 0x0), at 0xef73b934
  [31] ResolveClass(0xee300300, 0xefffe68c, 0x73e40, 0x0, 0x74657200, 0x74657200), at 0xef73b1b0
  [32] FindLoadedClass(0x0, 0x1, 0x0, 0x41f90, 0x0, 0xee300300), at 0xef73baf0
  [33] FindClassFromClass(0xef784bc0, 0x73e40, 0x1, 0xee3002e8, 0x0, 0xef78c664), at 0xef73bccc
  [34] Locked_ResolveClassConstant(0xee3002e8, 0x73870, 0x2, 0xef784bc0, 0x8, 0xef78c664), at 0xef737670
  [35] Locked_ResolveClassConstantField(0xa, 0xee3002e8, 0x73870, 0x738d4, 0xef784bc0, 0xef78c664), at 0xef737930
  [36] Locked_ResolveClassConstant(0xee3002e8, 0x73870, 0x19, 0xef784bc0, 0x400, 0x18), at 0xef7378d0
  [37] ResolveClassConstant(0x73870, 0x19, 0xef784bc0, 0x400, 0xee3002e8, 0xee3002e8), at 0xef7375d4
  [38] ResolveClassConstantFromPC(0x19, 0xb8, 0x73870, 0xef784bc0, 0x400, 0x74028), at 0xef74944c
  [39] invokestatic_0(0x7442a, 0xef784bc0, 0x23044, 0x23008, 0x73870, 0x23014), at 0xef76fb90
  [40] do_execute_java_method_vararg(0x0, 0x22f00, 0x22f40, 0x6b101, 0x6c0b0, 0x1), at 0xef74832c
  [41] do_execute_java_method(0xef784bc0, 0xee3001b8, 0x0, 0x0, 0x6c0b0, 0x1), at 0xef747c88
  [42] RunStaticInitializers(0xef784bc0, 0xef784524, 0x6c0b0, 0xee3001b8, 0x457e0, 0x0), at 0xef73cf68
  [43] RuntimeInitClass(0x0, 0xee3001b8, 0x57f00, 0xfffd, 0x0, 0xee3001b8), at 0xef73747c
  [44] Locked_ResolveClass(0xee3001b8, 0xefffee4c, 0xfc00, 0xee300010, 0xee3001b8, 0x0), at 0xef73b934
  [45] ResolveClass(0xee3001b8, 0xefffee4c, 0x59980, 0x0, 0x0, 0x0), at 0xef73b1b0
  [46] FindLoadedClass(0x0, 0x1, 0x0, 0x41f58, 0x0, 0xee3001b8), at 0xef73baf0
  [47] FindClassFromClass(0xef784bc0, 0x59980, 0x1, 0xee300028, 0x0, 0xef78c664), at 0xef73bccc
  [48] Locked_ResolveClassConstant(0xee300028, 0x58d38, 0x13, 0xef784bc0, 0x4c, 0xef78c664), at 0xef737670
  [49] Locked_ResolveClassConstantField(0xa, 0xee300028, 0x58d38, 0x58db0, 0xef784bc0, 0xef78c664), at 0xef737930
  [50] Locked_ResolveClassConstant(0xee300028, 0x58d38, 0x1e, 0xef784bc0, 0x400, 0x227ac), at 0xef7378d0
  [51] ResolveClassConstant(0x58d38, 0x1e, 0xef784bc0, 0x400, 0xee300028, 0xef78c664), at 0xef7375d4
  [52] ResolveClassConstantFromPC(0x1e, 0xb8, 0x58d38, 0xef784bc0, 0x400, 0x10), at 0xef74944c
  [53] invokestatic_0(0x5b19e, 0xef784bc0, 0x22f3c, 0x22eec, 0x58d38, 0x22f00), at 0xef76fb90
  [54] do_execute_java_method_vararg(0x1, 0x0, 0x22e24, 0x42da1, 0x43930, 0x0), at 0xef74832c
  [55] execute_java_constructor(0xee300180, 0x43930, 0xee300000, 0xef78af18, 0x1, 0xee300000), at 0xef747c50
  [56] InitializeClock(0xef78bd68, 0xef78af08, 0x57cd8, 0x57cd8, 0x0, 0x57ef9), at 0xef765010
  [57] sysThreadInitializeSystemThreads(0x0, 0x5, 0x57cd8, 0x0, 0x0, 0x3eca9), at 0xef76ac38
  [58] threadBootstrap(0xee300150, 0xeffff780, 0xee300158, 0xef7899c0, 0x0, 0xee300158), at 0xef75d9f4
  [59] InitializeClassThread(0xee300168, 0xeffff714, 0xee300150, 0xef784400, 0x100000, 0xfc5aade0), at 0xef75d82c
  [60] sysInitializeJavaVM(0xef784bc0, 0xeffff8b4, 0xef78c400, 0x344, 0x3, 0x0), at 0xef74b528
  [61] JNI_CreateJavaVM(0xeffff7e8, 0xeffff7e4, 0xeffff8b4, 0x0, 0x4, 0x2f), at 0xef755f64
  [62] java_main(0xeffff950, 0xeffff94c, 0x0, 0xeffff94c, 0xeffffa77, 0x0), at 0xef74abdc
(/usr/dist/local/pkgs/sunpro/5.x-sparc/bin/dbx)