Added mvn spotless:apply step

Author: Alec Zoeller

examples/java-spark-sql/pom.xml

@@ -36,6 +36,7 @@
         <geotools.version>1.8.0-33.1</geotools.version>
         <spark.version>3.5.7</spark.version>
         <javax.servlet.version>4.0.1</javax.servlet.version>
+        <spotless.version>3.0.0</spotless.version>
 	</properties>
 
 	<dependencies>
@@ -144,6 +145,39 @@
                     </execution>
                 </executions>
             </plugin>
+            <plugin>
+                <groupId>com.diffplug.spotless</groupId>
+                <artifactId>spotless-maven-plugin</artifactId>
+                <version>${spotless.version}</version>
+                <configuration>
+                    <formats>
+                    <!-- you can define as many formats as you want, each is independent -->
+                    <format>
+                        <!-- define the files to apply to -->
+                        <includes>
+                        <include>.gitattributes</include>
+                        <include>.gitignore</include>
+                        </includes>
+                        <!-- define the steps to apply to those files -->
+                        <trimTrailingWhitespace/>
+                        <endWithNewline/>
+                        <indent>
+                        <tabs>true</tabs>
+                        <spacesPerTab>4</spacesPerTab>
+                        </indent>
+                    </format>
+                    </formats>
+                    <!-- define a language-specific format -->
+                    <java>
+                    <googleJavaFormat>
+                        <version>1.10</version>
+                        <style>AOSP</style>
+                        <reflowLongStrings>true</reflowLongStrings>
+                        <formatJavadoc>false</formatJavadoc>
+                    </googleJavaFormat>
+                    </java>
+                </configuration>
+                </plugin>
 		</plugins>
 	</build>
 </project>