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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
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*
* 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 ) .
*
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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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*/
package gc.g1;
/*
* @ test TestConcurrentSystemGC
* @ bug 8195158
* @ summary Test that a System . gc ( ) with - XX : + ExplicitGCInvokesConcurrent
* is * not * upgraded to STW full GC
* @ requires vm . gc . G1
* @ library / test / lib
* @ modules java . base / jdk . internal . misc
* java . management
* @ run main / othervm - XX : + UseG1GC - XX : + ExplicitGCInvokesConcurrent - Xmx8m - Xms8m - XX : G1HeapRegionSize = 1 m gc . g1 . TestConcurrentSystemGC
*/
import java.util.ArrayList;
import java.util.List;
public class TestConcurrentSystemGC {
public static List<char []> memory;
public static void main(String[] args) throws Exception {
memory = new ArrayList<>();
try {
while (true ) {
memory.add(new char [1024 * 128 ]);
System.gc(); // should not trigger any assertions
}
} catch (OutOfMemoryError e) {
memory = null ;
System.gc();
}
}
}
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