Problem with argo-client-java '\n not found'

[jsher001]

Hi,

I am trying to use argo-client-java but have fallen at the first hurdle :-(

I am doing something very similar to the provided example but am seeing the following error...
Exception when calling WorkflowServiceApi#workflowServiceGetWorkflow
Status code: 0
Reason: null
Response headers: null
io.argoproj.workflow.ApiException: Message: java.io.IOException: unexpected end of stream on http://localhost:2746/...
HTTP response code: 0
HTTP response body: null
HTTP response headers: null
at io.argoproj.workflow.ApiClient.execute(ApiClient.java:1077)
at io.argoproj.workflow.apis.WorkflowServiceApi.workflowServiceGetWorkflowWithHttpInfo(WorkflowServiceApi.java:557)
at io.argoproj.workflow.apis.WorkflowServiceApi.workflowServiceGetWorkflow(WorkflowServiceApi.java:533)
at foo.Example.main(Example.java:28)
Caused by: java.io.IOException: unexpected end of stream on http://localhost:2746/...
at okhttp3.internal.http1.Http1ExchangeCodec.readResponseHeaders(Http1ExchangeCodec.kt:210)
at okhttp3.internal.connection.Exchange.readResponseHeaders(Exchange.kt:110)
at okhttp3.internal.http.CallServerInterceptor.intercept(CallServerInterceptor.kt:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
at io.argoproj.workflow.ApiClient$2.intercept(ApiClient.java:1485)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.kt:34)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.kt:95)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.kt:83)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.kt:76)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
at okhttp3.internal.connection.RealCall.getResponseWithInterceptorChain$okhttp(RealCall.kt:201)
at okhttp3.internal.connection.RealCall.execute(RealCall.kt:154)
at io.argoproj.workflow.ApiClient.execute(ApiClient.java:1073)
... 3 more
Caused by: java.io.EOFException: \n not found: limit=0 content=…
at okio.RealBufferedSource.readUtf8LineStrict(RealBufferedSource.kt:335)
at okhttp3.internal.http1.HeadersReader.readLine(HeadersReader.kt:29)
at okhttp3.internal.http1.Http1ExchangeCodec.readResponseHeaders(Http1ExchangeCodec.kt:180)
... 19 more

Has anyone seen this before ? Help would be greatly appreciated.
Thanks...