*** old/test/compiler/whitebox/BlockingCompilation.java	Fri Apr  8 14:17:25 2016
--- new/test/compiler/whitebox/BlockingCompilation.java	Fri Apr  8 14:17:24 2016

*** 26,44 ****
--- 26,45 ----
   * @bug 8150646
   * @summary Add support for blocking compiles through whitebox API
   * @library /testlibrary /test/lib /
   * @build sun.hotspot.WhiteBox
   *        compiler.testlibrary.CompilerUtils
   * @run main ClassFileInstaller sun.hotspot.WhiteBox
+  * @build BlockingCompilation
+  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
   *                                sun.hotspot.WhiteBox$WhiteBoxPermission
   *
   * @run main/othervm/timeout=60
   *        -Xbootclasspath/a:.
   *        -Xmixed
   *        -XX:+UnlockDiagnosticVMOptions
   *        -XX:+WhiteBoxAPI
   *        -XX:+PrintCompilation
+  *        -XX:TieredCompileTaskTimeout=60000
   *        BlockingCompilation
   */
  
  import java.lang.reflect.Method;
  import java.util.Random;

*** 75,85 ****
--- 76,92 ----
  
          // Try compiling on highest available comp level.
          // If the compiles are blocking, this call will block until the test time out,
          // Progress == success
          // (Don't run with -Xcomp since that can cause long timeouts due to many compiles)
          WB.enqueueMethodForCompilation(m, highest_level);
+         if (!WB.enqueueMethodForCompilation(m, highest_level)) {
+             throw new Exception("Failed to enqueue method on level: " + highest_level);
+         }
+ 
+         if (!WB.isMethodQueuedForCompilation(m)) {
+             throw new Exception("Must be enqueued because of locked compilation");
+         }
  
          // restore state
          WB.unlockCompilation();
          while (!WB.isMethodCompiled(m)) {
            Thread.sleep(100);