test/demo/jvmti/mtrace/JFrameCreateTime.java

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  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 
  25 /* JFrameCreateTime:
  26  *
  27  * Example swing application that just creates a JFrame object.
  28  *
  29  */
  30 
  31 /* Early in 1.5 it was reported that doing a step into the first JFrame
  32  *   was very slow (VisualMust debugger people reported this).
  33  */
  34 

  35 import javax.swing.*;
  36 
  37 public class JFrameCreateTime {
  38     public static void main(String[] args) {



  39         JFrame f;
  40         long start, end;
  41 
  42         start = System.currentTimeMillis();
  43         f = new JFrame("JFrame");
  44         end = System.currentTimeMillis();
  45 
  46         System.out.println("JFrame first creation took " + (end - start) + " ms");
  47 
  48         start = System.currentTimeMillis();
  49         f = new JFrame("JFrame");
  50         end = System.currentTimeMillis();
  51 
  52         System.out.println("JFrame second creation took " + (end - start) + " ms");

  53         System.exit(0);
  54     }
  55 }


  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 
  25 /* JFrameCreateTime:
  26  *
  27  * Example swing application that just creates a JFrame object.
  28  *
  29  */
  30 
  31 /* Early in 1.5 it was reported that doing a step into the first JFrame
  32  *   was very slow (VisualMust debugger people reported this).
  33  */
  34 
  35 import java.awt.GraphicsEnvironment;
  36 import javax.swing.*;
  37 
  38 public class JFrameCreateTime {
  39     public static void main(String[] args) {
  40         if (GraphicsEnvironment.getLocalGraphicsEnvironment().isHeadlessInstance()) {
  41             System.out.println("JFrame test was skipped due to headless mode");            
  42         } else {    
  43             JFrame f;
  44             long start, end;
  45 
  46             start = System.currentTimeMillis();
  47             f = new JFrame("JFrame");
  48             end = System.currentTimeMillis();
  49 
  50             System.out.println("JFrame first creation took " + (end - start) + " ms");
  51 
  52             start = System.currentTimeMillis();
  53             f = new JFrame("JFrame");
  54             end = System.currentTimeMillis();

  55             System.out.println("JFrame second creation took " + (end - start) + " ms");
  56         }
  57         System.exit(0);
  58     }
  59 }