Port log4j-mongodb4 changes from 2.x

Author: ppkarwasz

log4j-mongodb4/pom.xml

@@ -28,7 +28,6 @@
   <name>Apache Log4j MongoDB 4</name>
   <description>MongoDB appender for Log4j using the MongoDB 4 driver API.</description>
   <properties>
-    <log4jParentDir>${basedir}/..</log4jParentDir>
 
     <!--
       ~ OSGi and JPMS options
@@ -77,10 +76,6 @@
           <groupId>junit</groupId>
           <artifactId>junit</artifactId>
         </exclusion>
-        <exclusion>
-          <groupId>org.junit.vintage</groupId>
-          <artifactId>junit-vintage-engine</artifactId>
-        </exclusion>
       </exclusions>
     </dependency>
     <dependency>
@@ -112,6 +107,7 @@
 
   <build>
     <plugins>
+
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
@@ -125,6 +121,7 @@
           </annotationProcessorPaths>
         </configuration>
       </plugin>
+
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
@@ -145,6 +142,8 @@
           </dependency>
         </dependencies>
       </plugin>
+
     </plugins>
   </build>
+
 </project>

log4j-mongodb4/src/main/java/org/apache/logging/log4j/mongodb4/MongoDb4DocumentObject.java

@@ -25,8 +25,12 @@
  * {@link Document}.
  */
 public final class MongoDb4DocumentObject implements NoSqlObject<Document> {
+
     private final Document document;
 
+    /**
+     * Constructs a new instance.
+     */
     public MongoDb4DocumentObject() {
         this.document = new Document();
     }