Pin javadoc to version 8

Ninerian · Ninerian · commit b1e565df3ca3 · 2021-02-09T08:35:13.000+01:00
diff --git a/pom.xml b/pom.xml
@@ -158,6 +158,9 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
                 <version>3.2.0</version>
+                <configuration>
+                    <source>8</source>
+                </configuration>
                 <executions>
                     <execution>
                         <id>attach-javadocs</id>
