--- jsr166/src/test/tck/JSR166TestCase.java	2013/09/17 06:38:36	1.114
+++ jsr166/src/test/tck/JSR166TestCase.java	2014/06/16 20:13:54	1.119
@@ -116,6 +116,13 @@ public class JSR166TestCase extends Test
         Boolean.getBoolean("jsr166.expensiveTests");
 
     /**
+     * If true, also run tests that are not part of the official tck
+     * because they test unspecified implementation details.
+     */
+    protected static final boolean testImplementationDetails =
+        Boolean.getBoolean("jsr166.testImplementationDetails");
+
+    /**
      * If true, report on stdout all "slow" tests, that is, ones that
      * take more than profileThreshold milliseconds to execute.
      */
@@ -160,12 +167,13 @@ public class JSR166TestCase extends Test
     }
 
     protected void runTestProfiled() throws Throwable {
+        // Warmup run, notably to trigger all needed classloading.
+        super.runTest();
         long t0 = System.nanoTime();
         try {
             super.runTest();
         } finally {
-            long elapsedMillis =
-                (System.nanoTime() - t0) / (1000L * 1000L);
+            long elapsedMillis = millisElapsedSince(t0);
             if (elapsedMillis >= profileThreshold)
                 System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
         }
@@ -221,12 +229,17 @@ public class JSR166TestCase extends Test
     }
 
     public static final double JAVA_CLASS_VERSION;
+    public static final String JAVA_SPECIFICATION_VERSION;
     static {
         try {
             JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
                 new java.security.PrivilegedAction<Double>() {
                 public Double run() {
                     return Double.valueOf(System.getProperty("java.class.version"));}});
+            JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
+                new java.security.PrivilegedAction<String>() {
+                public String run() {
+                    return System.getProperty("java.specification.version");}});
         } catch (Throwable t) {
             throw new Error(t);
         }
@@ -235,6 +248,10 @@ public class JSR166TestCase extends Test
     public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
     public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
     public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
+    public static boolean atLeastJava9() {
+        // As of 2014-05, java9 still uses 52.0 class file version
+        return JAVA_SPECIFICATION_VERSION.startsWith("1.9");
+    }
 
     /**
      * Collects all JSR166 unit tests as one suite.
@@ -327,6 +344,14 @@ public class JSR166TestCase extends Test
             addNamedTestClasses(suite, java8TestClassNames);
         }
 
+        // Java9+ test classes
+        if (atLeastJava9()) {
+            String[] java9TestClassNames = {
+                "ThreadPoolExecutor9Test",
+            };
+            addNamedTestClasses(suite, java9TestClassNames);
+        }
+
         return suite;
     }
 
@@ -884,7 +909,7 @@ public class JSR166TestCase extends Test
      * startNanoTime, which must have been previously returned from a
      * call to {@link System.nanoTime()}.
      */
-    long millisElapsedSince(long startNanoTime) {
+    static long millisElapsedSince(long startNanoTime) {
         return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
     }