test/hotspot/jtreg/serviceability/tmtools/jstat/utils/JstatGcCapacityResults.java

*** 68,77 ****
--- 68,78 ----
          // Check exit code
          assertThat(getExitCode() == 0, "Unexpected exit code: " + getExitCode());
  
          // Check Young Gen consistency
          float NGCMN = getFloatValue("NGCMN");
+         assertThat(NGCMN >= 0, "NGCMN < 0 (min generation capacity is negative)");
          float NGCMX = getFloatValue("NGCMX");
          assertThat(NGCMX >= NGCMN, "NGCMN > NGCMX (min generation capacity > max generation capacity)");
  
          float NGC = getFloatValue("NGC");
          assertThat(NGC >= NGCMN, "NGC < NGCMN (generation capacity < min generation capacity)");
*** 100,109 ****
--- 101,111 ----
              assertThat(checkFloatIsSum(NGC, S0C, S1C, EC), errMsg);
          }
  
          // Check Old Gen consistency
          float OGCMN = getFloatValue("OGCMN");
+         assertThat(OGCMN >= 0, "OGCMN < 0 (min generation capacity is negative)");
          float OGCMX = getFloatValue("OGCMX");
          assertThat(OGCMX >= OGCMN, "OGCMN > OGCMX (min generation capacity > max generation capacity)");
  
          float OGC = getFloatValue("OGC");
          assertThat(OGC >= OGCMN, "OGC < OGCMN (generation capacity < min generation capacity)");