test/testlibrary/com/oracle/java/testlibrary/ProcessTools.java

*** 135,144 ****
--- 135,146 ----
    public static ProcessBuilder createJavaProcessBuilder(boolean addTestVmAndJavaOptions, String... command) throws Exception {
      String javapath = JDKToolFinder.getJDKTool("java");
  
      ArrayList<String> args = new ArrayList<>();
      args.add(javapath);
+     args.add("-classpath");
+     args.add(System.getProperty("java.class.path"));
      Collections.addAll(args, getPlatformSpecificVMArgs());
  
      if (addTestVmAndJavaOptions) {
        Collections.addAll(args, Utils.getTestJavaOpts());
      }