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diff --git a/srcjar_unused/org/apache/log4j/helpers/ISO8601DateFormat.java b/srcjar_unused/org/apache/log4j/helpers/ISO8601DateFormat.java
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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.log4j.helpers;
+
+import java.util.Calendar;
+import java.util.TimeZone;
+import java.util.Date;
+import java.text.FieldPosition;
+import java.text.ParsePosition;
+
+// Contributors: Arndt Schoenewald <arndt@ibm23093i821.mc.schoenewald.de>
+
+/**
+   Formats a {@link Date} in the format "yyyy-MM-dd HH:mm:ss,SSS" for example
+   "1999-11-27 15:49:37,459".
+
+   <p>Refer to the <a
+   href=http://www.cl.cam.ac.uk/~mgk25/iso-time.html>summary of the
+   International Standard Date and Time Notation</a> for more
+   information on this format.
+
+   @author Ceki G&uuml;lc&uuml;
+   @author Andrew Vajoczki
+
+   @since 0.7.5
+*/
+public class ISO8601DateFormat extends AbsoluteTimeDateFormat {
+  private static final long serialVersionUID = -759840745298755296L;
+
+  public
+  ISO8601DateFormat() {
+  }
+
+  public
+  ISO8601DateFormat(TimeZone timeZone) {
+    super(timeZone);
+  }
+
+  static private long   lastTime;
+  static private char[] lastTimeString = new char[20];
+
+  /**
+     Appends a date in the format "YYYY-mm-dd HH:mm:ss,SSS"
+     to <code>sbuf</code>. For example: "1999-11-27 15:49:37,459".
+
+     @param sbuf the <code>StringBuffer</code> to write to
+  */
+  public
+  StringBuffer format(Date date, StringBuffer sbuf,
+		      FieldPosition fieldPosition) {
+
+    long now = date.getTime();
+    int millis = (int)(now % 1000);
+
+    if ((now - millis) != lastTime || lastTimeString[0] == 0) {
+      // We reach this point at most once per second
+      // across all threads instead of each time format()
+      // is called. This saves considerable CPU time.
+
+      calendar.setTime(date);
+
+      int start = sbuf.length();
+
+      int year =  calendar.get(Calendar.YEAR);
+      sbuf.append(year);
+
+      String month;
+      switch(calendar.get(Calendar.MONTH)) {
+      case Calendar.JANUARY: month = "-01-"; break;
+      case Calendar.FEBRUARY: month = "-02-";  break;
+      case Calendar.MARCH: month = "-03-"; break;
+      case Calendar.APRIL: month = "-04-";  break;
+      case Calendar.MAY: month = "-05-"; break;
+      case Calendar.JUNE: month = "-06-";  break;
+      case Calendar.JULY: month = "-07-"; break;
+      case Calendar.AUGUST: month = "-08-";  break;
+      case Calendar.SEPTEMBER: month = "-09-"; break;
+      case Calendar.OCTOBER: month = "-10-"; break;
+      case Calendar.NOVEMBER: month = "-11-";  break;
+      case Calendar.DECEMBER: month = "-12-";  break;
+      default: month = "-NA-"; break;
+      }
+      sbuf.append(month);
+
+      int day = calendar.get(Calendar.DAY_OF_MONTH);
+      if(day < 10) {
+        sbuf.append('0');
+    }
+      sbuf.append(day);
+
+      sbuf.append(' ');
+
+      int hour = calendar.get(Calendar.HOUR_OF_DAY);
+      if(hour < 10) {
+	sbuf.append('0');
+      }
+      sbuf.append(hour);
+      sbuf.append(':');
+
+      int mins = calendar.get(Calendar.MINUTE);
+      if(mins < 10) {
+	sbuf.append('0');
+      }
+      sbuf.append(mins);
+      sbuf.append(':');
+
+      int secs = calendar.get(Calendar.SECOND);
+      if(secs < 10) {
+	sbuf.append('0');
+      }
+      sbuf.append(secs);
+
+      sbuf.append(',');
+
+      // store the time string for next time to avoid recomputation
+      sbuf.getChars(start, sbuf.length(), lastTimeString, 0);
+      lastTime = now - millis;
+    }
+    else {
+      sbuf.append(lastTimeString);
+    }
+
+
+    if (millis < 100) {
+        sbuf.append('0');
+    }
+    if (millis < 10) {
+        sbuf.append('0');
+    }
+
+    sbuf.append(millis);
+    return sbuf;
+  }
+
+  /**
+    This method does not do anything but return <code>null</code>.
+   */
+  public
+  Date parse(java.lang.String s, ParsePosition pos) {
+    return null;
+  }
+}
+