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+/* ElementScanner7.java -- A scanning visitor of program elements for 1.7.
+   Copyright (C) 2015  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package javax.lang.model.util;
+
+import javax.annotation.processing.SupportedSourceVersion;
+
+import javax.lang.model.SourceVersion;
+
+import javax.lang.model.element.Element;
+import javax.lang.model.element.ElementVisitor;
+import javax.lang.model.element.VariableElement;
+
+/**
+ * <p>A scanning implementation of {@link ElementVisitor} for the
+ * 1.7 version of the Java programming language
+ * ({@link SourceVersion#RELEASE_7}).  Each {@code visitXYZ} method
+ * calls {@link scan(Element)} on the elements enclosed within the
+ * one it receives as an argument.  Implementors may extend this
+ * class and provide alternative implementations of the {@code visitXYZ}
+ * methods appropriate, so that scanning takes place in a different
+ * order.</p>
+ * <p>As the interface this class implements may be extended in future,
+ * in order to support later language versions, methods beginning with
+ * the phrase {@code "visit"} should be avoided in subclasses.  This
+ * class itself will be extended to direct these new methods to the
+ * {@link #visitUnknown(Element,P)} method and a new class will be
+ * added to provide implementations for the new language version.
+ * At this time, all or some of this class may be deprecated.</p>
+ * 
+ * @param <R> the return type of the visitor's methods.  {@code Void}
+ *            can be used where there is no return value.
+ * @param <P> the type of the additional parameter supplied to the visitor's
+ *            methods.
+ *
+ * @author Andrew John Hughes (gnu_andrew@member.fsf.org)
+ * @since 1.7
+ */
+@SupportedSourceVersion(SourceVersion.RELEASE_7)
+public class ElementScanner7<R,P> extends ElementScanner6<R,P>
+{
+
+  /**
+   * Constructs a new {@code ElementScanner7} using {@code null}
+   * as the default value.
+   */
+  protected ElementScanner7()
+  {
+    this(null);
+  }
+
+  /**
+   * Constructs a new {@code ElementScanner7} using the specified
+   * default value.
+   *
+   * @param defaultValue the default value to return when there
+   *                     no elements to scan.
+   */
+  protected ElementScanner7(R defaultValue)
+  {
+    super(defaultValue);
+  }
+
+  /**
+   * Visits a variable element.  This implementation scans the
+   * enclosed elements.
+   *
+   * @param element the variable element to visit.
+   * @param parameter the additional parameter, specific to the visitor.
+   *        May be {@code null}.
+   */
+  @Override
+  public R visitVariable(VariableElement element, P parameter)
+  {
+    return scan(element.getEnclosedElements(), parameter);
+  }
+
+}