diff -r c436414a719e -r 437d03ea40b1 src/cpu/sparc/vm/sharedRuntime_sparc.cpp
--- a/src/cpu/sparc/vm/sharedRuntime_sparc.cpp	Wed May 21 13:46:23 2008 -0700
+++ b/src/cpu/sparc/vm/sharedRuntime_sparc.cpp	Wed May 21 16:31:35 2008 -0700
@@ -2556,7 +2556,6 @@
   int total_strings = 0;
   int first_arg_to_pass = 0;
   int total_c_args = 0;
-  int box_offset = java_lang_boxing_object::value_offset_in_bytes();
 
   // Skip the receiver as dtrace doesn't want to see it
   if( !method->is_static() ) {
@@ -2778,7 +2777,9 @@
             __ br_null(in_reg, true, Assembler::pn, skipUnbox);
             __ delayed()->mov(G0, tmp);
 
-            switch (out_sig_bt[c_arg]) {
+            BasicType bt = out_sig_bt[c_arg];
+            int box_offset = java_lang_boxing_object::value_offset_in_bytes(bt);
+            switch (bt) {
                 case T_BYTE:
                   __ ldub(in_reg, box_offset, tmp); break;
                 case T_SHORT: