Apply suggestions from code review

Co-authored-by: Jay DeLuca <[email protected]>

Author: shalk

instrumentation/jaxrs-client/jaxrs-client-2.0-testing/src/test/java/io/opentelemetry/javaagent/instrumentation/jaxrsclient/JaxMultithreadedClientTest.java

@@ -82,6 +82,6 @@ public void run() {
           .start();
     }
 
-    latch.await();
+    latch.await(10, TimeUnit.SECONDS);
   }
 }

instrumentation/jaxrs-client/jaxrs-client-2.0-testing/src/test/java/io/opentelemetry/javaagent/instrumentation/jaxrsclient/JaxRsClientTest.java

@@ -26,7 +26,7 @@
 import javax.ws.rs.core.Response;
 import org.junit.jupiter.api.extension.RegisterExtension;
 
-abstract class JaxRsClientTest extends AbstractHttpClientTest<Invocation.Builder> {
+abstract class AbstractJaxRsClientTest extends AbstractHttpClientTest<Invocation.Builder> {
 
   @RegisterExtension
   static final InstrumentationExtension testing = HttpClientInstrumentationExtension.forAgent();