Disable doclint in Javadoc of JDK8. If the build use JDK7 or below the...

Disable doclint in Javadoc of JDK8. If the build use JDK7 or below the additional parameter raises an error - so its only set for jdk8 builds

build/build.xml

@@ -467,6 +467,16 @@
     </target>
 
     <target name="-javadoc-impl" unless="no.javadoc">
+
+        <!-- Starting with Java8 Javadoc checks for valid html. We disable it only for Java8 because older verions doesn't know the property -->
+        <condition property="javadoc.additionalparams" value="-Xdoclint:none">
+            <contains string="${ant.java.version}" substring="1.8"/>
+        </condition>
+        <condition property="javadoc.additionalparams" value="">
+            <not>
+              <contains string="${ant.java.version}" substring="1.8"/>
+            </not>
+        </condition>
         <!-- Run javadoc over all source code -->
         <javadoc
                 packagenames="org.jivesoftware.*, org.xmpp.*"
@@ -474,6 +484,7 @@
                 windowtitle="Openfire ${version} Javadoc"
                 overview="${src.java.dir}/overview.html"
                 failonerror="yes"
+				additionalparam="${javadoc.additionalparams}"
                 >
             <sourcepath>
                 <path location="${src.java.dir}"/>