docs: @Override
      @Sensitive
      public byte[] transform(ClassLoader loader,
                              String className,
                              Class<?> classBeingRedefined,
                              ProtectionDomain protectionDomain,
                              @Sensitive byte[] classfileBuffer) throws IllegalClassFormatException {
          // Skip over anything on the bootstrap loader and some VM
          // internal classes (like those in support of reflection)
          if (loader == null && !includeBootstrap) {
              return null;
          } else if (classBeingRedefined == null) {
              return null;
          } else if (!probeManagerImpl.isMonitorable(classBeingRedefined)) {
              return null;
          }
  
          try {
              return transformWithProbes(classBeingRedefined, classfileBuffer);
          } catch (Throwable t) {
              return null;
          }
      }