test: Attempt to fix class init

src/main/java/com/vonage/client/AbstractMethod.java

@@ -42,7 +42,7 @@
  * @param <REQ> The request object type that will be used to construct the HTTP request body.
  * @param <RES>  The response object type which will be constructed from the returned HTTP response body.
  *
- * @see DynamicEndpoint for an abstract implementation which handles the most common use cases.
+ * @see DynamicEndpoint for a flexible implementation which handles the most common use cases.
  */
 public abstract class AbstractMethod<REQ, RES> implements RestEndpoint<REQ, RES> {
     private static final Logger LOGGER = Logger.getLogger(AbstractMethod.class.getName());
@@ -52,6 +52,9 @@ private static boolean shouldLog() {
         return LOGGER.isLoggable(LOG_LEVEL);
     }
 
+    /**
+     * HTTP client and configuration used by this endpoint.
+     */
     private final HttpWrapper httpWrapper;
 
     /**

src/test/java/com/vonage/client/AbstractMethodTest.java

@@ -32,6 +32,8 @@
 import org.apache.http.message.BasicStatusLine;
 import static org.junit.jupiter.api.Assertions.*;
 import org.junit.jupiter.api.*;
+import org.junit.jupiter.api.parallel.Execution;
+import org.junit.jupiter.api.parallel.ExecutionMode;
 import org.mockito.ArgumentCaptor;
 import static org.mockito.Mockito.*;
 import java.io.*;
@@ -45,6 +47,7 @@
 import java.util.logging.LogManager;
 import java.util.stream.Collectors;
 
+@Execution(ExecutionMode.SAME_THREAD)
 public class AbstractMethodTest {
 
     static {