--- a/jaxp/src/java.xml/share/classes/com/sun/org/apache/bcel/internal/generic/ACONST_NULL.java	Tue Aug 08 22:52:41 2017 +0000
+++ b/jaxp/src/java.xml/share/classes/com/sun/org/apache/bcel/internal/generic/ACONST_NULL.java	Sun Aug 13 21:10:40 2017 -0700
@@ -21,41 +21,43 @@
 
 package com.sun.org.apache.bcel.internal.generic;
 
-
 /**
  * ACONST_NULL - Push null reference
  * <PRE>Stack: ... -&gt; ..., null</PRE>
  *
- * @author  <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
+ * @version $Id: ACONST_NULL.java 1747278 2016-06-07 17:28:43Z britter $
  */
-public class ACONST_NULL extends Instruction
-  implements PushInstruction, TypedInstruction {
-  /**
-   * Push null reference
-   */
-  public ACONST_NULL() {
-    super(com.sun.org.apache.bcel.internal.Constants.ACONST_NULL, (short)1);
-  }
+public class ACONST_NULL extends Instruction implements PushInstruction, TypedInstruction {
 
-  /** @return Type.NULL
-   */
-  public Type getType(ConstantPoolGen cp) {
-    return Type.NULL;
-  }
+    /**
+     * Push null reference
+     */
+    public ACONST_NULL() {
+        super(com.sun.org.apache.bcel.internal.Const.ACONST_NULL, (short) 1);
+    }
 
 
-  /**
-   * Call corresponding visitor method(s). The order is:
-   * Call visitor methods of implemented interfaces first, then
-   * call methods according to the class hierarchy in descending order,
-   * i.e., the most specific visitXXX() call comes last.
-   *
-   * @param v Visitor object
-   */
-  public void accept(Visitor v) {
-    v.visitStackProducer(this);
-    v.visitPushInstruction(this);
-    v.visitTypedInstruction(this);
-    v.visitACONST_NULL(this);
-  }
+    /** @return Type.NULL
+     */
+    @Override
+    public Type getType( final ConstantPoolGen cp ) {
+        return Type.NULL;
+    }
+
+
+    /**
+     * Call corresponding visitor method(s). The order is:
+     * Call visitor methods of implemented interfaces first, then
+     * call methods according to the class hierarchy in descending order,
+     * i.e., the most specific visitXXX() call comes last.
+     *
+     * @param v Visitor object
+     */
+    @Override
+    public void accept( final Visitor v ) {
+        v.visitStackProducer(this);
+        v.visitPushInstruction(this);
+        v.visitTypedInstruction(this);
+        v.visitACONST_NULL(this);
+    }
 }