diff -u -r jamvm-1.4.2/src/excep.c vmlog-jamvm-1.4.2/src/excep.c
--- jamvm-1.4.2/src/excep.c	2005-12-31 08:12:55.000000000 +0100
+++ vmlog-jamvm-1.4.2/src/excep.c	2006-03-12 00:42:34.000000000 +0100
@@ -23,6 +23,8 @@
 #include "jam.h"
 #include "lock.h"
 
+#include <vmlog_jamvm.h>
+
 extern char VM_initing;
 
 static Class *ste_class, *ste_array_class, *throw_class, *vmthrow_class;
@@ -83,6 +85,7 @@
                 }
 
                 getExecEnv()->exception = exp;
+		vmlog_jamvm_throw(getExecEnv()->thread,exp);
             }
         }
     }
@@ -90,11 +93,15 @@
 
 void setException(Object *exp) {
     getExecEnv()->exception = exp;
+    vmlog_jamvm_throw(getExecEnv()->thread,exp);
 }
 
 void clearException() {
     ExecEnv *ee = getExecEnv();
 
+    if (ee->exception)
+	vmlog_jamvm_catch(ee->thread,ee->exception);
+
     if(ee->overflow) {
         ee->overflow = FALSE;
         ee->stack_end -= STACK_RED_ZONE_SIZE;
@@ -157,6 +164,8 @@
     while(((handler_pc = findCatchBlockInMethod(frame->mb, exception, frame->last_pc)) == NULL)
                     && (frame->prev->mb != NULL)) {
 
+	vmlog_jamvm_unwnd_method(getExecEnv()->thread,frame->mb);
+
         if(frame->mb->access_flags & ACC_SYNCHRONIZED) {
             Object *sync_ob = frame->mb->access_flags & ACC_STATIC ?
                     (Object*)frame->mb->class : (Object*)frame->lvars[0];
diff -u -r jamvm-1.4.2/src/frame.h vmlog-jamvm-1.4.2/src/frame.h
--- jamvm-1.4.2/src/frame.h	2005-09-05 02:02:45.000000000 +0200
+++ vmlog-jamvm-1.4.2/src/frame.h	2006-03-14 00:26:07.000000000 +0100
@@ -53,7 +53,12 @@
                                                                 \
     new_frame->prev = dummy;                                    \
     ee->last_frame = new_frame;                                 \
+    vmlog_jamvm_enter_method(ee->thread,mb);                    \
 }
 
 #define POP_TOP_FRAME(ee)                                       \
+    if (ee->exception)                                          \
+        vmlog_jamvm_unwnd_method(ee->thread,mb);                \
+    else                                                        \
+        vmlog_jamvm_leave_method(ee->thread,mb);                \
     ee->last_frame = ee->last_frame->prev->prev;
diff -u -r jamvm-1.4.2/src/interp.c vmlog-jamvm-1.4.2/src/interp.c
--- jamvm-1.4.2/src/interp.c	2006-01-22 23:32:38.000000000 +0100
+++ vmlog-jamvm-1.4.2/src/interp.c	2006-03-13 04:21:48.000000000 +0100
@@ -59,6 +59,8 @@
     }                                                                      \
 }
 
+#include "vmlog_jamvm.c"
+
 uintptr_t *executeJava() {
     CodePntr pc;
     ExecEnv *ee = getExecEnv();
@@ -2220,6 +2222,8 @@
 
     ee->last_frame = new_frame;
 
+    vmlog_jamvm_enter_method(ee->thread,new_mb);
+
     if(new_mb->access_flags & ACC_SYNCHRONIZED) {
         sync_ob = new_mb->access_flags & ACC_STATIC ? (Object*)new_mb->class : (Object*)*arg1;
         objectLock(sync_ob);
@@ -2229,6 +2233,11 @@
         ostack = (*(uintptr_t *(*)(Class*, MethodBlock*, uintptr_t*))
                      new_mb->native_invoker)(new_mb->class, new_mb, arg1);
 
+	if (exceptionOccured0(ee))
+		vmlog_jamvm_unwnd_method(ee->thread,new_mb);
+	else
+		vmlog_jamvm_leave_method(ee->thread,new_mb);
+
         if(sync_ob)
             objectUnlock(sync_ob);
 
@@ -2262,6 +2271,8 @@
         return ostack;
     }
 
+    vmlog_jamvm_leave_method(ee->thread,mb);
+
     if(mb->access_flags & ACC_SYNCHRONIZED) {
         Object *sync_ob = mb->access_flags & ACC_STATIC ? (Object*)mb->class : this;
         objectUnlock(sync_ob);
@@ -2294,6 +2305,8 @@
             return NULL;
         }
 
+	vmlog_jamvm_catch(ee->thread,excep);
+
         /* If we're handling a stack overflow, reduce the stack
            back past the red zone to enable handling of further
            overflows */
diff -u -r jamvm-1.4.2/src/jam.c vmlog-jamvm-1.4.2/src/jam.c
--- jamvm-1.4.2/src/jam.c	2006-01-17 01:36:59.000000000 +0100
+++ vmlog-jamvm-1.4.2/src/jam.c	2006-03-13 04:32:16.000000000 +0100
@@ -25,6 +25,8 @@
 
 #include "jam.h"
 
+#include <vmlog_jamvm.h>
+
 /* Setup default values for command line args */
 
 static int noasyncgc = FALSE;
@@ -282,6 +284,8 @@
     int status;
     int i;
 
+    vmlog_jamvm_init(&argc,argv);
+
     int class_arg = parseCommandLine(argc, argv);
 
     initVM();