--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/oops/ArrayKlass.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,159 @@
+/*
+ * Copyright 2000-2007 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.oops;
+
+import java.io.*;
+import java.util.*;
+import sun.jvm.hotspot.utilities.*;
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.memory.*;
+import sun.jvm.hotspot.runtime.*;
+import sun.jvm.hotspot.types.*;
+
+// ArrayKlass is the abstract class for all array classes
+
+public class ArrayKlass extends Klass {
+  static {
+    VM.registerVMInitializedObserver(new Observer() {
+        public void update(Observable o, Object data) {
+          initialize(VM.getVM().getTypeDataBase());
+        }
+      });
+  }
+
+  private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
+    Type type          = db.lookupType("arrayKlass");
+    dimension          = new CIntField(type.getCIntegerField("_dimension"), Oop.getHeaderSize());
+    higherDimension    = new OopField(type.getOopField("_higher_dimension"), Oop.getHeaderSize());
+    lowerDimension     = new OopField(type.getOopField("_lower_dimension"), Oop.getHeaderSize());
+    vtableLen          = new CIntField(type.getCIntegerField("_vtable_len"), Oop.getHeaderSize());
+    allocSize          = new CIntField(type.getCIntegerField("_alloc_size"), Oop.getHeaderSize());
+    componentMirror    = new OopField(type.getOopField("_component_mirror"), Oop.getHeaderSize());
+    javaLangCloneableName = null;
+    javaLangObjectName = null;
+    javaIoSerializableName = null;
+  }
+
+  ArrayKlass(OopHandle handle, ObjectHeap heap) {
+    super(handle, heap);
+  }
+
+  private static CIntField dimension;
+  private static OopField  higherDimension;
+  private static OopField  lowerDimension;
+  private static CIntField vtableLen;
+  private static CIntField allocSize;
+  private static OopField  componentMirror;
+
+  public Klass getJavaSuper() {
+    SystemDictionary sysDict = VM.getVM().getSystemDictionary();
+    return sysDict.getObjectKlass();
+  }
+
+  public long  getDimension()       { return         dimension.getValue(this); }
+  public Klass getHigherDimension() { return (Klass) higherDimension.getValue(this); }
+  public Klass getLowerDimension()  { return (Klass) lowerDimension.getValue(this); }
+  public long  getVtableLen()       { return         vtableLen.getValue(this); }
+  public long  getAllocSize()       { return         allocSize.getValue(this); }
+  public Oop   getComponentMirror() { return         componentMirror.getValue(this); }
+
+  // constant class names - javaLangCloneable, javaIoSerializable, javaLangObject
+  // Initialized lazily to avoid initialization ordering dependencies between ArrayKlass and SymbolTable
+  private static Symbol javaLangCloneableName;
+  private static Symbol javaLangObjectName;
+  private static Symbol javaIoSerializableName;
+  private static Symbol javaLangCloneableName() {
+    if (javaLangCloneableName == null) {
+      javaLangCloneableName = VM.getVM().getSymbolTable().probe("java/lang/Cloneable");
+    }
+    return javaLangCloneableName;
+  }
+
+  private static Symbol javaLangObjectName() {
+    if (javaLangObjectName == null) {
+      javaLangObjectName = VM.getVM().getSymbolTable().probe("java/lang/Object");
+    }
+    return javaLangObjectName;
+  }
+
+  private static Symbol javaIoSerializableName() {
+    if (javaIoSerializableName == null) {
+      javaIoSerializableName = VM.getVM().getSymbolTable().probe("java/io/Serializable");
+    }
+    return javaIoSerializableName;
+  }
+
+  public int getClassStatus() {
+     return JVMDIClassStatus.VERIFIED | JVMDIClassStatus.PREPARED | JVMDIClassStatus.INITIALIZED;
+  }
+
+  public long computeModifierFlags() {
+     return JVM_ACC_ABSTRACT | JVM_ACC_FINAL | JVM_ACC_PUBLIC;
+  }
+
+  public long getArrayHeaderInBytes() {
+    return Bits.maskBits(getLayoutHelper() >> LH_HEADER_SIZE_SHIFT, 0xFF);
+  }
+
+  public int getLog2ElementSize() {
+    return Bits.maskBits(getLayoutHelper() >> LH_LOG2_ELEMENT_SIZE_SHIFT, 0xFF);
+  }
+
+  public int getElementType() {
+    return Bits.maskBits(getLayoutHelper() >> LH_ELEMENT_TYPE_SHIFT, 0xFF);
+  }
+
+  boolean computeSubtypeOf(Klass k) {
+    // An array is a subtype of Serializable, Clonable, and Object
+    Symbol name = k.getName();
+    if (name != null && (name.equals(javaIoSerializableName()) ||
+                         name.equals(javaLangCloneableName()) ||
+                         name.equals(javaLangObjectName()))) {
+      return true;
+    } else {
+      return false;
+    }
+  }
+
+  public void printValueOn(PrintStream tty) {
+    tty.print("ArrayKlass");
+  }
+
+  public long getObjectSize() {
+    return alignObjectSize(InstanceKlass.getHeaderSize() + getVtableLen() * getHeap().getOopSize());
+  }
+
+  public void iterateFields(OopVisitor visitor, boolean doVMFields) {
+    super.iterateFields(visitor, doVMFields);
+    if (doVMFields) {
+      visitor.doCInt(dimension, true);
+      visitor.doOop(higherDimension, true);
+      visitor.doOop(lowerDimension, true);
+      visitor.doCInt(vtableLen, true);
+      visitor.doCInt(allocSize, true);
+      visitor.doOop(componentMirror, true);
+    }
+  }
+}