[Resteasy-users] How to retrieve response body when server responds with error

[Roman <rom...@gm...>]

Hello,

In my RESTEasy client application I would like to be able to retrieve
the response body when server responds with 500 error code, in order
to provide a meaningful error message to the user. Attempt to read the body
from exception using the following code fails, as the input
stream is already closed:

    ClientResponse response = failure.getResponse();
    responseBody = (String) response.getEntity(String.class);

I'was able to work around it by creating a ClientErrorInterceptor
which does nothing, but reads the response body as

    public void handle(ClientResponse<?> response) throws RuntimeException {
        try {
            response.getEntity(String.class);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

The above exception handling code started working after that.

Still, it works only in some clients, others fail to read response
body. I do not have an exact error message at hand, but it is saying
something like "MessageBodyReader for media type */* and Java type
java.lang.String is not found".

Am I missing some bits in the solution or Is there any better way to
solve the problem?

Thank you,
Roman