Closed
Description
ApacheHttpTransport class uses many deprecated APIs from Apache HTTP Client. There are around 75 deprecation warnings in that class alone.
Moreover, it is now impossible to use the ApacheHttpTransport with a recommended implementation of Apache HttpClient. For instance, the following doesn't work:
import org.apache.http.impl.client.HttpClients;
public void testDefaultClient() {
new ApacheHttpTransport(HttpClients.createDefault());
}
The above fails with the following error:
java.lang.UnsupportedOperationException
at org.apache.http.impl.client.InternalHttpClient.getParams(InternalHttpClient.java:211)
at com.google.api.client.http.apache.ApacheHttpTransport.<init>(ApacheHttpTransport.java:127)
at com.google.api.client.http.apache.ApacheHttpTransportTest.testDefaultClient(ApacheHttpTransportTest.java:98)
This is because new HttpClient implementations do not expose their HttpParams and ConnectionManager (both these getters have been deprecated, and most default implementations now throw errors).
Realistically one can only use ApacheHttpTransport with DefaultHttpClient, which itself is a deprecated API now.