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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
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* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 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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*/
import java.awt.image.ImageObserver;
import java.awt.image.ImageProducer;
import java.awt.image.ImageConsumer;
import java.awt.Image;
import java.awt.Container;
/* @test 1.0 12/01/17
@ bug 7104151
@ summary Make sure that we don ' t leak image observers ( or related objects )
@ run main / othervm AddNoLeak
@ author David Buck
*/
public class AddNoLeak {
public static void main(String[] args) {
System.setProperty("java.awt.headless" , "true" );
Container cont = new Container();
Image img = cont.createImage(new DummyImageSource());
for (int i=0 ;i < 15000 ;i++) {
img.getWidth(new ImageObserver() {
public boolean imageUpdate(Image img, int infoflags, int x, int y, int width, int height) {return false ;}
});
if (i % 100 == 0 ) {
System.gc();
}
}
}
private static class DummyImageSource implements ImageProducer {
public void addConsumer(ImageConsumer ic){}
public boolean isConsumer(ImageConsumer ic){return false ;}
public void removeConsumer(ImageConsumer ic){}
public void startProduction(ImageConsumer ic){}
public void requestTopDownLeftRightResend(ImageConsumer ic){}
}
}
Messung V0.5 in Prozent C=97 H=98 G=97
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