EqualHashCodeTest.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/*
  @test
  @bug 4157612
  @summary tests that certain awt classes do not break basic hashCode() contract.
  @author prs@sparc.spb.su: area=
  @run main EqualHashCodeTest
*/

import java.awt.*;
import java.awt.color.ColorSpace;
import java.awt.datatransfer.DataFlavor;
import java.awt.image.ColorModel;
import java.awt.image.ComponentColorModel;

public class EqualHashCodeTest {

     static DataFlavor df1, df2;
     static Insets insets1, insets2;
     static Dimension dim1, dim2;
     static ColorModel cm1, cm2;
     static int[] ColorModelBits = { 8, 8, 8, 8 };

     public static void main(String[] args) throws Exception {
         boolean passed = true;
         try {
             df1 = new DataFlavor( "application/postscript" );
             df2 = new DataFlavor( "application/*" );
         } catch (ClassNotFoundException e1) {
             throw new RuntimeException("Could not create DataFlavors. This should never happen.");
         } catch (IllegalArgumentException e2) {
             passed = false;
         }
         if (df1.hashCode() != df2.hashCode()) {
             passed = false;
         }
         dim1 = new Dimension(3, 18);
         dim2 = new Dimension(3, 18);
         if (dim1.hashCode() != dim2.hashCode()) {
             passed = false;
         }
         insets1 = new Insets(3, 4, 7, 11);
         insets2 = new Insets(3, 4, 7, 11);
         if (insets1.hashCode() != insets2.hashCode()) {
             passed = false;
         }
         cm1 = new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB),
                                       ColorModelBits, true, true,
                                       Transparency.OPAQUE, 0);
         cm2 = new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB),
                                       ColorModelBits, true, true,
                                       Transparency.OPAQUE, 0);
         if (cm1.hashCode() != cm2.hashCode()) {
             passed = false;
         }
         if (!passed)
             throw new RuntimeException("Test FAILED");
     }

}