fix javadoc failure to document parameters (#2432)

* fix javadoc failure to document parameters

* fix checkstyle

pgjdbc/src/main/java/org/postgresql/util/ObjectFactory.java

@@ -23,6 +23,9 @@ public class ObjectFactory {
    * single String argument is searched if it fails, or tryString is true a no argument constructor
    * is tried.
    *
+   * @param <T> type of expected class
+   * @param expectedClass expected class of type T, if the classname instantiated doesn't match
+   *                     the expected type of this class this method will fail
    * @param classname name of the class to instantiate
    * @param info parameter to pass as Properties
    * @param tryString whether to look for a single String argument constructor

pgjdbc/src/test/java/org/postgresql/test/util/ObjectFactoryTest.java

@@ -5,18 +5,18 @@
 
 package org.postgresql.test.util;
 
-import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 import org.postgresql.PGProperty;
 import org.postgresql.jdbc.SslMode;
 import org.postgresql.test.TestUtil;
 import org.postgresql.util.ObjectFactory;
 import org.postgresql.util.PSQLState;
 
-import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
 import org.opentest4j.MultipleFailuresError;
 
 import java.sql.SQLException;