Fix Javadoc links to the JRE.

Author: garydgregory

pom.xml

@@ -327,6 +327,7 @@ file comparators, endian transformation classes, and much more.
     </commons.osgi.import>
     <commons.scmPubUrl>https://svn.apache.org/repos/infra/websites/production/commons/content/proper/commons-io/</commons.scmPubUrl>
     <commons.scmPubCheckoutDirectory>site-content</commons.scmPubCheckoutDirectory>
+    <commons.javadoc.java.link>${commons.javadoc8.java.link}</commons.javadoc.java.link>
     <checkstyle.plugin.version>3.1.2</checkstyle.plugin.version>
     <commons.jacoco.version>0.8.7</commons.jacoco.version>
     <commons.surefire.version>3.0.0-M5</commons.surefire.version>