Imported GNU Classpath 0.20

Imported GNU Classpath 0.20
       * Makefile.am (AM_CPPFLAGS): Add classpath/include.
       * java/nio/charset/spi/CharsetProvider.java: New override file.
       * java/security/Security.java: Likewise.
       * sources.am: Regenerated.
       * Makefile.in: Likewise.

From-SVN: r109831

libjava/classpath/java/lang/StackTraceElement.java

@@ -49,7 +49,7 @@ import java.io.Serializable;
  * @author Mark Wielaard (mark@klomp.org)
  * @author Eric Blake (ebb9@email.byu.edu)
  * @since 1.4
- * @status updated to 1.4
+ * @status updated to 1.5
  */
 public final class StackTraceElement implements Serializable
 {
@@ -111,6 +111,26 @@ public final class StackTraceElement implements Serializable
     this.isNative = isNative;
   }
 
+  /**
+   * Create a new StackTraceElement representing a given source location.
+   *
+   * @param className the fully qualified name of the class
+   * @param methodName the name of the method
+   * @param fileName the name of the file, null if unknown
+   * @param lineNumber the line in the file, negative if unknown, or -2
+   * if this method is native
+   * 
+   * @since 1.5
+   */
+  public StackTraceElement(String className, String methodName, String fileName,
+                           int lineNumber)
+  {
+    this(fileName, lineNumber, className, methodName, lineNumber == -2);
+    // The public constructor doesn't allow certain values to be null.
+    if (className == null || methodName == null)
+      throw new NullPointerException("invalid argument to constructor");
+  }
+
   /**
    * Returns the name of the file, or null if unknown. This is usually
    * obtained from the <code>SourceFile</code> attribute of the class file