run with JUnit 4 explicitly

Author: diegomarquezp

google-http-client-test/src/main/java/com/google/api/client/test/util/store/AbstractDataStoreFactoryTest.java

@@ -30,13 +30,16 @@
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
 
 /**
  * Tests {@link DataStoreFactory}.
  *
  * @author Yaniv Inbar
  */
 @Beta
+@RunWith(JUnit4.class)
 public abstract class AbstractDataStoreFactoryTest {
 
   private static final String STRING_ID = "String";

google-http-client-test/src/test/java/com/google/api/client/test/util/store/FileDataStoreFactoryTest.java

@@ -24,12 +24,15 @@
 import java.io.File;
 import java.io.IOException;
 import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
 
 /**
  * Tests {@link FileDataStoreFactory}.
  *
  * @author Yaniv Inbar
  */
+@RunWith(JUnit4.class)
 public class FileDataStoreFactoryTest extends AbstractDataStoreFactoryTest {
 
   @Override