Initial ARM JNI compiler support.

Change-Id: I85183eec9a2645e6cb074b4b18bc6af800a77e06
diff --git a/src/object.cc b/src/object.cc
index 6d18beb..289f526 100644
--- a/src/object.cc
+++ b/src/object.cc
@@ -125,6 +125,8 @@
   CHECK_LT(param, NumArgs());
   if (IsStatic()) {
     param++;  // 0th argument must skip return value at start of the shorty
+  } else if (param == 0) {
+    return false;  // this argument
   }
   return (shorty_[param] == 'J') || (shorty_[param] == 'D');
 }