--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/interpreter/BytecodeGotoW.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2002 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+package sun.jvm.hotspot.interpreter;
+
+import sun.jvm.hotspot.oops.*;
+import sun.jvm.hotspot.utilities.*;
+
+public class BytecodeGotoW extends BytecodeJmp {
+  BytecodeGotoW(Method method, int bci) {
+    super(method, bci);
+  }
+
+  public int getTargetBCI() {
+    return bci() + javaSignedWordAt(1);
+  }
+
+  public void verify() {
+    if (Assert.ASSERTS_ENABLED) {
+      Assert.that(isValid(), "check goto_w");
+    }
+  }
+
+  public boolean isValid() {
+    return javaCode() == Bytecodes._goto_w;
+  }
+
+  public static BytecodeGotoW at(Method method, int bci) {
+    BytecodeGotoW b = new BytecodeGotoW(method, bci);
+    if (Assert.ASSERTS_ENABLED) {
+      b.verify();
+    }
+    return b;
+  }
+
+  /** Like at, but returns null if the BCI is not at goto_w  */
+  public static BytecodeGotoW atCheck(Method method, int bci) {
+    BytecodeGotoW b = new BytecodeGotoW(method, bci);
+    return (b.isValid() ? b : null);
+  }
+
+  public static BytecodeGotoW at(BytecodeStream bcs) {
+    return new BytecodeGotoW(bcs.method(), bcs.bci());
+  }
+}