ArrayUtil - remove unused method

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1876205 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/poi/util/ArrayUtil.java

@@ -20,33 +20,11 @@ package org.apache.poi.util;
 
 /**
  * Utility classes for dealing with arrays.
- *
- * @author Glen Stampoultzis
  */
-public class ArrayUtil
+@Internal
-{
+public final class ArrayUtil {
-    /**
-     * This is really a debugging version of <code>System.arraycopy()</code>.
-     * Use it to provide better exception messages when copying arrays around.
-     * For production use it's better to use the original for speed.
-     */
-    public static void arraycopy(byte[] src, int src_position, byte[] dst, int dst_position, int length)
-    {
-        if (src_position < 0)
-            throw new IllegalArgumentException("src_position was less than 0.  Actual value " + src_position);
-        if (src_position >= src.length)
-            throw new IllegalArgumentException( "src_position was greater than src array size.  Tried to write starting at position " + src_position + " but the array length is " + src.length );
-        if (src_position + length > src.length)
-            throw new IllegalArgumentException("src_position + length would overrun the src array.  Expected end at " + (src_position + length) + " actual end at " + src.length);
-        if (dst_position < 0)
-            throw new IllegalArgumentException("dst_position was less than 0.  Actual value " + dst_position);
-        if (dst_position >= dst.length)
-            throw new IllegalArgumentException( "dst_position was greater than dst array size.  Tried to write starting at position " + dst_position + " but the array length is " + dst.length );
-        if (dst_position + length > dst.length)
-            throw new IllegalArgumentException("dst_position + length would overrun the dst array.  Expected end at " + (dst_position + length) + " actual end at " + dst.length);
 
-        System.arraycopy( src, src_position, dst, dst_position, length);
+	private ArrayUtil() {}
-    }
 
 	/**
      * Moves a number of entries in an array to another point in the array,

src/testcases/org/apache/poi/util/TestArrayUtil.java

@@ -29,22 +29,6 @@ import org.junit.Test;
  * Unit test for ArrayUtil
  */
 public class TestArrayUtil {
-	/**
-	 * Test to ensure that our own arraycopy behaves as it should do
-	 */
-	@Test
-	public void testarraycopy() {
-		byte[] bytes = new byte[] { 0x01, 0x02, 0x03, 0x04 };
-
-		// Test copy whole thing
-		byte[] dest = new byte[4];
-		ArrayUtil.arraycopy(bytes, 0, dest, 0, 4);
-
-		assertArrayEquals(dest, bytes);
-		// ToDo - test exceptions are as expected
-	}
-
-
 	/**
 	 * Helper for testArrayMoveWithin
 	 */