Import GNU Classpath (classpath-0_97_2-release).

libjava/

2008-06-28  Matthias Klose  <doko@ubuntu.com>

        Import GNU Classpath (classpath-0_97_2-release).

        * Regenerate class and header files.
        * Regenerate auto* files.
        * gcj/javaprims.h: Define jobjectRefType.
        * jni.cc (_Jv_JNI_GetObjectRefType): New (stub only).
        (_Jv_JNIFunctions): Initialize GetObjectRefType.
        * gnu/classpath/jdwp/VMVirtualMachine.java,
        java/security/VMSecureRandom.java: Merge from classpath.
        * HACKING: Fix typo.
        * ChangeLog-2007: New file.
        * configure.ac: Set JAVAC, pass --disable-regen-headers to classpath.

libjava/classpath/

2008-06-28  Matthias Klose  <doko@ubuntu.com>

        * m4/ac_prog_javac.m4: Disable check for JAVAC, when
        not configured with --enable-java-maintainer-mode.
        * aclocal.m4, configure: Regenerate.
        * native/jni/gstreamer-peer/Makefile.am: Do not link with
        libclasspathnative.
        * native/jni/gstreamer-peer/Makefile.in: Regenerate.
        * tools/Makefile.am, lib/Makefile.am: Use JAVAC for setting
        JCOMPILER, drop flags not understood by gcj.

From-SVN: r137223

1 files changed, 77 insertions, 0 deletions

diff --git a/libjava/classpath/gnu/java/util/LRUCache.java b/libjava/classpath/gnu/java/util/LRUCache.java
new file mode 100644
index 0000000..784a442
--- /dev/null
+++ b/libjava/classpath/gnu/java/util/LRUCache.java
@@ -0,0 +1,77 @@
+/* LRUCache.java -- A LRU Cache implementation
+   Copyright (C) 2007 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 gnu.java.util;
+
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+/**
+ * A least recently used cache, based on LinkedHashMap.
+ */
+public class LRUCache<K,V>
+  extends LinkedHashMap<K,V>
+{
+
+  /**
+   * The capacity of the cache.
+   */
+  private int capacity;
+
+  /**
+   * Creates a new LRUCache instance with the specified capacity.
+   *
+   * @param cap the capacity of the new cache
+   */
+  public LRUCache(int cap)
+  {
+    super();
+    capacity = cap;
+  }
+
+  /**
+   * Returns <code>true</code> when the oldest entry should be removed.
+   *
+   * @param eldest the entry about to be removed
+   *
+   * @return <code>true</code> when the oldest entry should be removed
+   */
+  protected boolean removeEldestEntry(Map.Entry<K, V> eldest)
+  {
+    return size() > capacity;
+  }
+}