RFR:JDK-8238586: [TESTBUG] vmTestbase/jit/tiered/Test.java failed when TieredCompilation is disabled

[Jia Huang]

Hi all,

JBS: https://bugs.openjdk.java.net/browse/JDK-8238586

When TieredCompilation is disabled, the test will fail.
Please review the following fix which make the test pass when disabled 
TieredCompilation.
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diff -r e45d8ca836b5 -r 67bef3d6692f 
test/hotspot/jtreg/vmTestbase/jit/tiered/Test.java
--- a/test/hotspot/jtreg/vmTestbase/jit/tiered/Test.java  Mon Feb 03 
22:10:59 2020 +0800
+++ b/test/hotspot/jtreg/vmTestbase/jit/tiered/Test.java  Thu Feb 06 
15:25:19 2020 +0800
@@ -46,7 +46,7 @@
  import jdk.test.lib.process.ProcessTools;

  public class Test {
-    private static String UNSUPPORTED_OPTION_MESSAGE = 
"-XX:TieredCompilation not supported in this VM";
+    private static String UNSUPPORTED_OPTION_MESSAGE = 
"-XX:+TieredCompilation not supported in this VM";
      private static String REGEXP = "^[0-9.]+: \\[compile level=\\d";
      public static void main(String[] args) throws Exception {
          {
@@ -56,7 +56,7 @@
                      "-XX:+PrintTieredEvents",
                      "-version");
              var output = new OutputAnalyzer(pb.start());
-            if (output.getStdout().contains(UNSUPPORTED_OPTION_MESSAGE)) {
+            if (output.getStderr().contains(UNSUPPORTED_OPTION_MESSAGE)) {
                  throw new SkippedException(UNSUPPORTED_OPTION_MESSAGE);
              }
              output.shouldHaveExitValue(0)
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For more info, please see the JBS.

Thanks a lot

Best regards,
Jia.