Log requests and responses using Spring resttemplate - resttemplate

Question

Getting below error:
aused by: java.lang.IllegalArgumentException: No InputStream specified
at org.springframework.util.Assert.notNull(Assert.java:112)
at org.springframework.util.StreamUtils.copy(StreamUtils.java:118)
at org.springframework.util.StreamUtils.copyToByteArray(StreamUtils.java:56)
at org.springframework.http.client.BufferingClientHttpResponseWrapper.getBody(BufferingClientHttpResponseWrapper.java:69)
Code for logging requests and responses:
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import org.springframework.http.HttpRequest;
import org.springframework.http.client.ClientHttpRequestExecution;
import org.springframework.http.client.ClientHttpRequestInterceptor;
import org.springframework.http.client.ClientHttpResponse;
public class LoggingRequestInterceptor implements ClientHttpRequestInterceptor {
private static final String CLASS_NAME = LoggingRequestInterceptor.class.getName();
private static final String LOG_NAME = "WBDO2Web";
#Override
public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution) throws IOException {
traceRequest(request, body);
ClientHttpResponse response = execution.execute(request, body);
traceResponse(response);
return response;
}
private void traceRequest(HttpRequest request, byte[] body) throws IOException {
String methodName="traceRequest";
LogUtil.w2Info(CLASS_NAME, methodName,"===========================request begin================================================",LOG_NAME);
LogUtil.w2Info(CLASS_NAME, methodName,"URI : {}"+ request.getURI(),LOG_NAME);
LogUtil.w2Info(CLASS_NAME, methodName,"Method : {}"+ request.getMethod(),LOG_NAME);
LogUtil.w2Info(CLASS_NAME, methodName,"Headers : {}"+ request.getHeaders(),LOG_NAME);
LogUtil.w2Info(CLASS_NAME, methodName,"Request body: {}"+ new String(body, "UTF-8"),LOG_NAME);
LogUtil.w2Info(CLASS_NAME, methodName,"==========================request end================================================",LOG_NAME);
}
private void traceResponse(ClientHttpResponse response) throws IOException {
String methodName="traceResponse";
System.out.println("Response#########"+response.getBody());
final ClientHttpResponse responseWrapper = new BufferClientHttpResponseWrapper(response);
StringBuilder inputStringBuilder = new StringBuilder();
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(responseWrapper.getBody(), "UTF-8"));
String line = bufferedReader.readLine();
while (line != null) {
inputStringBuilder.append(line);
inputStringBuilder.append('\n');
line = bufferedReader.readLine();
}
LogUtil.w2Info(CLASS_NAME, methodName,"============================response begin==========================================",LOG_NAME);
LogUtil.w2Info(CLASS_NAME, methodName,"Status code : {}"+ response.getStatusCode(),LOG_NAME);
LogUtil.w2Info(CLASS_NAME, methodName,"Status text : {}"+ response.getStatusText(),LOG_NAME);
LogUtil.w2Info(CLASS_NAME, methodName,"Headers : {}"+ response.getHeaders(),LOG_NAME);
LogUtil.w2Info(CLASS_NAME, methodName,"Response body: {}"+ inputStringBuilder.toString(),LOG_NAME);
LogUtil.w2Info(CLASS_NAME, methodName,"=======================response end=================================================",LOG_NAME);
}
}