--- openjdk.orig/hotspot/src/share/vm/memory/dump.cpp   2021-12-06 19:02:27.037014756 +0000
+++ openjdk/hotspot/src/share/vm/memory/dump.cpp        2021-12-06 19:03:01.597850811 +0000
@@ -1426,7 +1426,11 @@
             /* Skip spaces and control characters */
             continue;
         }
-        h = 31 * h + c;
+        jlong h0 = h;
+        for(int i = 0; i < 5; i++) {
+            h += h;
+        }
+        h += c - h0;
     }
     return h;
 }
--- openjdk/hotspot/src/share/vm/memory/dump.cpp.orig   2021-12-07 00:12:44.969219667 +0000
+++ openjdk/hotspot/src/share/vm/memory/dump.cpp        2021-12-07 00:12:54.219429310 +0000
@@ -1554,7 +1554,6 @@
     if (computed_jsum != file_jsum) {
       tty->cr();
       tty->print_cr("Preload failed: checksum of class list was incorrect.");
-      exit(1);
     }
 
     tty->print_cr("done. ");