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 8140520
  27  * @summary Setting small CompilerThreadStackSize, ThreadStackSize, and
  28  * VMThreadStackSize values should result in an error message that shows
  29  * the minimum stack size value for each thread type.
  30  * @library /test/lib
  31  * @modules java.base/jdk.internal.misc
  32  *          java.management
  33  * @run main TooSmallStackSize
  34  */
  35 
  36 /*
  37  * The primary purpose of this test is to make sure we can run with a
  38  * stack smaller than the minimum without crashing. Also this test will
  39  * determine the minimum allowed stack size for the platform (as
  40  * provided by the JVM error message when a very small stack is used),
  41  * and then verify that the JVM can be launched with that stack size
  42  * without a crash or any error messages.
  43  *
  44  * Note: The '-Xss<size>' and '-XX:ThreadStackSize=<k-bytes>' options
  45  * both control Java thread stack size. This repo's version of the test
  46  * exercises the '-XX:ThreadStackSize' VM option. The jdk repo's version
  47  * of the test exercises the '-Xss' option.
  48  */
  49 
  50 import jdk.test.lib.process.ProcessTools;
  51 import jdk.test.lib.process.OutputAnalyzer;
  52 
  53 public class TooSmallStackSize {

  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 8140520
  27  * @summary Setting small CompilerThreadStackSize, ThreadStackSize, and
  28  * VMThreadStackSize values should result in an error message that shows
  29  * the minimum stack size value for each thread type.
  30  * @library /test/lib
  31  * @modules java.base/jdk.internal.misc
  32  *          java.management
  33  * @run driver TooSmallStackSize
  34  */
  35 
  36 /*
  37  * The primary purpose of this test is to make sure we can run with a
  38  * stack smaller than the minimum without crashing. Also this test will
  39  * determine the minimum allowed stack size for the platform (as
  40  * provided by the JVM error message when a very small stack is used),
  41  * and then verify that the JVM can be launched with that stack size
  42  * without a crash or any error messages.
  43  *
  44  * Note: The '-Xss<size>' and '-XX:ThreadStackSize=<k-bytes>' options
  45  * both control Java thread stack size. This repo's version of the test
  46  * exercises the '-XX:ThreadStackSize' VM option. The jdk repo's version
  47  * of the test exercises the '-Xss' option.
  48  */
  49 
  50 import jdk.test.lib.process.ProcessTools;
  51 import jdk.test.lib.process.OutputAnalyzer;
  52 
  53 public class TooSmallStackSize {