Fix based on cr

Author: loserwang1024

flink-cdc-composer/src/main/java/org/apache/flink/cdc/composer/utils/FactoryDiscoveryUtils.java

@@ -20,10 +20,11 @@
 import org.apache.flink.cdc.common.annotation.Internal;
 import org.apache.flink.cdc.common.factories.Factory;
 
-import org.codehaus.commons.nullanalysis.NotNull;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import javax.annotation.Nonnull;
+
 import java.net.URL;
 import java.nio.file.Files;
 import java.nio.file.Paths;
@@ -43,7 +44,7 @@ public class FactoryDiscoveryUtils {
     private FactoryDiscoveryUtils() {}
 
     /** Returns the {@link Factory} for the given identifier. */
-    @NotNull
+    @Nonnull
     @SuppressWarnings("unchecked")
     public static <T extends Factory> T getFactoryByIdentifier(
             String identifier, Class<T> factoryClass) {