test/hotspot/jtreg/gc/g1/humongousObjects/TestNoAllocationsInHRegions.java

8217389: JTREG: Clean up, remove unused variable warnings

*** 137,146 ****
--- 137,147 ----
                      },
  
                      // Dead object allocation
                      () -> {
                          int size = RND.nextInt(DEAD_OBJECT_MAX_SIZE);
+                         @SuppressWarnings("unused")
                          byte[] deadObject = new byte[size];
                      },
  
                      // Check
                      () -> {