Redirecting Standard IO on process on new thread

Hi all, I'm attempting the impossible.

So what I've got is a process that is running gradlew.jar with java and it works! The only issue is that when I go to execute the jar, my unity application hangs until the process is finished.

Currently I have it starting on a new thread, which doesn't hang, though now I need to redirect standard IO to my unity application.

Any Ideas?

Here's the code so far.....

 void ExecuteCommand(string cmd)
     {
 
         string output = string.Empty;
         string error = string.Empty;
 
         installPath = GetJavaInstallationPath();
         filePath = System.IO.Path.Combine(installPath, "bin/Java.exe");
 
         Process p = new Process();
         string classpath = Application.persistentDataPath + "/forge/gradle/wrapper/gradle-wrapper.jar";
         UnityEngine.Debug.LogError("cpath:"+ filePath);
         UnityEngine.Debug.LogError("fpath:" + classpath);
         ProcessStartInfo info = new ProcessStartInfo(filePath,@"""-Dorg.gradle.appname=gradlew"" -classpath " + @"""" +classpath+ @"""" +" org.gradle.wrapper.GradleWrapperMain " + cmd);
         info.RedirectStandardOutput = true;
         info.RedirectStandardError = true;
         info.RedirectStandardInput = true;
         info.UseShellExecute = false;
         info.WorkingDirectory = Application.persistentDataPath + "/forge";
         info.CreateNoWindow = true;
 
         p.StartInfo = info;
         p.WaitForExit();
          // Start a new thread, with the process created above
          // It ignores my flags set above and I get an error in the console
         ThreadStart ths = new ThreadStart(delegate () { p.Start(); });
 
 
 
         using (StreamWriter sw = p.StandardInput)
         {
             if (sw.BaseStream.CanWrite)
             {
                 //sw.WriteLine("pause");
                 //sw.WriteLine("cd " + Application.persistentDataPath + "/forge");
                 //sw.WriteLine("gradlew.bat - cleanCache - clean - setupDecompWorkspace--refresh - dependencies");
             }
         }
 ...