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test/jdk/java/lang/ClassLoader/forNameLeak/ClassForNameLeak.java

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rev 51731 : imported patch 8210732


  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  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  * @test
  26  * @bug 8151486
  27  * @summary Call Class.forName() on the system classloader from a class loaded
  28  *          from a custom classloader.
  29  * @library /lib/testlibrary
  30  * @build jdk.testlibrary.Utils JarUtils

  31  * @build ClassForName ClassForNameLeak
  32  * @run main/othervm/policy=test.policy -Djava.security.manager ClassForNameLeak
  33  */
  34 
  35 import java.io.IOException;
  36 import java.lang.ref.PhantomReference;
  37 import java.lang.ref.Reference;
  38 import java.lang.ref.ReferenceQueue;
  39 import java.net.MalformedURLException;
  40 import java.net.URL;
  41 import java.net.URLClassLoader;
  42 import java.nio.file.Path;
  43 import java.nio.file.Paths;
  44 import java.util.List;
  45 import java.util.concurrent.Callable;
  46 import java.util.concurrent.ExecutorService;
  47 import java.util.concurrent.Executors;
  48 import java.util.concurrent.Future;
  49 import java.util.stream.Collectors;
  50 import java.util.stream.Stream;
  51 import jdk.testlibrary.Utils;
  52 
  53 /*
  54  * Create .jar, load ClassForName from .jar using a URLClassLoader
  55  */
  56 public class ClassForNameLeak {
  57     private static final long TIMEOUT = (long)(5000.0 * Utils.TIMEOUT_FACTOR);
  58     private static final int THREADS = 10;
  59     private static final Path jarFilePath = Paths.get("cfn.jar");
  60     private static final ReferenceQueue<ClassLoader> rq = new ReferenceQueue<>();
  61 
  62     static class TestLoader {
  63         private final PhantomReference<ClassLoader> ref;
  64         TestLoader() {
  65             this.ref = loadAndRun();
  66         }
  67 
  68         // Use a new classloader to load the ClassForName class, then run its
  69         // Runnable.
  70         PhantomReference<ClassLoader> loadAndRun() {
  71             try {




  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  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  * @test
  26  * @bug 8151486
  27  * @summary Call Class.forName() on the system classloader from a class loaded
  28  *          from a custom classloader.
  29  * @library /lib/testlibrary
  30  * @library /test/lib
  31  * @build jdk.test.lib.Utils JarUtils
  32  * @build ClassForName ClassForNameLeak
  33  * @run main/othervm/policy=test.policy -Djava.security.manager ClassForNameLeak
  34  */
  35 
  36 import java.io.IOException;
  37 import java.lang.ref.PhantomReference;
  38 import java.lang.ref.Reference;
  39 import java.lang.ref.ReferenceQueue;
  40 import java.net.MalformedURLException;
  41 import java.net.URL;
  42 import java.net.URLClassLoader;
  43 import java.nio.file.Path;
  44 import java.nio.file.Paths;
  45 import java.util.List;
  46 import java.util.concurrent.Callable;
  47 import java.util.concurrent.ExecutorService;
  48 import java.util.concurrent.Executors;
  49 import java.util.concurrent.Future;
  50 import java.util.stream.Collectors;
  51 import java.util.stream.Stream;
  52 import jdk.test.lib.Utils;
  53 
  54 /*
  55  * Create .jar, load ClassForName from .jar using a URLClassLoader
  56  */
  57 public class ClassForNameLeak {
  58     private static final long TIMEOUT = (long)(5000.0 * Utils.TIMEOUT_FACTOR);
  59     private static final int THREADS = 10;
  60     private static final Path jarFilePath = Paths.get("cfn.jar");
  61     private static final ReferenceQueue<ClassLoader> rq = new ReferenceQueue<>();
  62 
  63     static class TestLoader {
  64         private final PhantomReference<ClassLoader> ref;
  65         TestLoader() {
  66             this.ref = loadAndRun();
  67         }
  68 
  69         // Use a new classloader to load the ClassForName class, then run its
  70         // Runnable.
  71         PhantomReference<ClassLoader> loadAndRun() {
  72             try {


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