src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/utilities/HeapHprofBinWriter.java

*** 388,400 ****
          this.names = new HashSet<Symbol>();
      }
  
      public synchronized void write(String fileName) throws IOException {
          VM vm = VM.getVM();
-         if (vm.getUniverse().heap() instanceof ZCollectedHeap) {
-             throw new RuntimeException("This operation is not supported with ZGC.");
-         }
  
          // open file stream and create buffered data output stream
          fos = new FileOutputStream(fileName);
          out = new DataOutputStream(new BufferedOutputStream(fos));
  
--- 388,397 ----