Get detail messages of chained exceptions Java

I think what you need is:

public static List<String> getExceptionMessageChain(Throwable throwable) {
    List<String> result = new ArrayList<String>();
    while (throwable != null) {
        result.add(throwable.getMessage());
        throwable = throwable.getCause();
    }
    return result; //["THIRD EXCEPTION", "SECOND EXCEPTION", "FIRST EXCEPTION"]
}

Cycle through the exception cause and append the message in each exception.

    try
    {
        try
        {
            try
            {
                try
                {
                    throw new RuntimeException("Message");
                }
                catch (Exception e)
                {
                    throw new Exception("FIRST EXCEPTION", e);
                }
            }
            catch (Exception e)
            {
                throw new Exception("SECOND EXCEPTION", e);
            }
        }
        catch (Exception e)
        {
            throw new Exception("THIRD EXCEPTION", e);
        }
    }
    catch (Exception e)
    {
        String message = e.getMessage();
        Throwable inner = null;
        Throwable root = e;
        while ((inner = root.getCause()) != null)
        {
            message += " " + inner.getMessage();
            root = inner;
        }
        System.out.println(message);
    }

Which prints

THIRD EXCEPTION SECOND EXCEPTION FIRST EXCEPTION Message

You can just add the previous exception message on each exception

This is an example :

public static void main(String[] args) {

    try {
        try {
            try {
                try {
                    throw new Exception();
                    // Some error here
                } catch (Exception e) {
                    throw new Exception("FIRST EXCEPTION", e);
                }
            } catch (Exception e) {
                Exception e2 = new Exception("SECOND EXCEPTION + " + e.getMessage());
                throw e2;
            }
        } catch (Exception e) {
            Exception e3 = new Exception("THIRD EXCEPTION + " + e.getMessage());
            throw e3;
        }
    } catch (Exception e) {
        System.out.println(e);
    }
}

The result is : java.lang.Exception: THIRD EXCEPTION + SECOND EXCEPTION + FIRST EXCEPTION

you can better use it this way, merge the message() of previous Exception with the message() of new Exception you are throwing:

      } catch (Exception e) {
          throw new Exception("FIRST EXCEPTION" + e.getMessage(), e);
      }