Merge branch 'master' into implementation/wave_sort

Author: alxkm

pom.xml

@@ -125,7 +125,7 @@
             <plugin>
                 <groupId>com.github.spotbugs</groupId>
                 <artifactId>spotbugs-maven-plugin</artifactId>
-                <version>4.8.5.0</version>
+                <version>4.8.6.0</version>
                 <configuration>
                     <excludeFilterFile>spotbugs-exclude.xml</excludeFilterFile>
                     <includeTests>true</includeTests>