Temporarily disable ExtensionRegistryFactoryTest

java/core/src/test/java/com/google/protobuf/ExtensionRegistryFactoryTest.java

@@ -44,6 +44,7 @@ import java.net.URLClassLoader;
 import junit.framework.Test;
 import junit.framework.TestCase;
 import junit.framework.TestSuite;
+import org.junit.Ignore;
 
 /**
  * Tests for {@link ExtensionRegistryFactory} and the {@link ExtensionRegistry} instances it
@@ -55,8 +56,12 @@ import junit.framework.TestSuite;
  *
  * <p>The test mechanism employed here is based on the pattern in {@code
  * com.google.common.util.concurrent.AbstractFutureFallbackAtomicHelperTest}
+ *
+ * <p> This test is temporarily disabled while we figure out how to fix the class loading used for
+ * testing lite functionality.
  */
 @SuppressWarnings("JUnit4ClassUsedInJUnit3")
+@Ignore
 public class ExtensionRegistryFactoryTest extends TestCase {
 
   // A classloader which blacklists some non-Lite classes.