< prev index next >

test/lib/jdk/test/lib/cds/CDSTestUtils.java

Print this page




  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 package jdk.test.lib.cds;
  24 
  25 import java.io.IOException;
  26 import java.io.File;
  27 import java.io.FileOutputStream;
  28 import java.io.PrintStream;
  29 import java.text.SimpleDateFormat;
  30 import java.util.ArrayList;
  31 import java.util.Date;
  32 import jdk.test.lib.Utils;
  33 import jdk.test.lib.process.OutputAnalyzer;
  34 import jdk.test.lib.process.ProcessTools;
  35 
  36 
  37 // This class contains common test utilities for testing CDS
  38 public class CDSTestUtils {





  39     public interface Checker {
  40         public void check(OutputAnalyzer output) throws Exception;
  41     }
  42 
  43     /*
  44      * INTRODUCTION
  45      *
  46      * When testing various CDS functionalities, we need to launch JVM processes
  47      * using a "launch method" (such as TestCommon.run), and analyze the results of these
  48      * processes.
  49      *
  50      * While typical jtreg tests would use OutputAnalyzer in such cases, due to the
  51      * complexity of CDS failure modes, we have added the CDSTestUtils.Result class
  52      * to make the analysis more convenient and less error prone.
  53      *
  54      * A Java process can end in one of the following 4 states:
  55      *
  56      *    1: Unexpected error - such as JVM crashing. In this case, the "launch method"
  57      *                          will throw a RuntimeException.
  58      *    2: Mapping Failure  - this happens when the OS (intermittently) fails to map the




  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 package jdk.test.lib.cds;
  24 
  25 import java.io.IOException;
  26 import java.io.File;
  27 import java.io.FileOutputStream;
  28 import java.io.PrintStream;
  29 import java.text.SimpleDateFormat;
  30 import java.util.ArrayList;
  31 import java.util.Date;
  32 import jdk.test.lib.Utils;
  33 import jdk.test.lib.process.OutputAnalyzer;
  34 import jdk.test.lib.process.ProcessTools;
  35 
  36 
  37 // This class contains common test utilities for testing CDS
  38 public class CDSTestUtils {
  39     public static final String MSG_RANGE_NOT_WITHIN_HEAP =
  40         "UseSharedSpaces: Unable to allocate region, range is not within java heap.";
  41     public static final String MSG_RANGE_ALREADT_IN_USE =
  42         "Unable to allocate region, java heap range is already in use.";
  43 
  44     public interface Checker {
  45         public void check(OutputAnalyzer output) throws Exception;
  46     }
  47 
  48     /*
  49      * INTRODUCTION
  50      *
  51      * When testing various CDS functionalities, we need to launch JVM processes
  52      * using a "launch method" (such as TestCommon.run), and analyze the results of these
  53      * processes.
  54      *
  55      * While typical jtreg tests would use OutputAnalyzer in such cases, due to the
  56      * complexity of CDS failure modes, we have added the CDSTestUtils.Result class
  57      * to make the analysis more convenient and less error prone.
  58      *
  59      * A Java process can end in one of the following 4 states:
  60      *
  61      *    1: Unexpected error - such as JVM crashing. In this case, the "launch method"
  62      *                          will throw a RuntimeException.
  63      *    2: Mapping Failure  - this happens when the OS (intermittently) fails to map the


< prev index next >