--- build.xml.orig	2017-08-18 15:20:46.597557692 +0100
+++ build.xml	2017-08-18 15:21:16.347227377 +0100
@@ -1670,7 +1670,7 @@
             description="Generates the API documentation">
         <javadoc verbose="false" author="true" destdir="${apidocs.report.dir}"
                  windowtitle="POI API Documentation" use="true" version="true"
-                 maxmemory="384M" additionalparam="-notimestamp" locale="en_US"
+                 maxmemory="384M" additionalparam="-notimestamp -Xdoclint:none" locale="en_US" Encoding="utf8"
                  classpathref="javadoc.classpath">
             <packageset dir="${main.src}" defaultexcludes="yes">
                 <include name="org/apache/poi/**"/>
@@ -1878,7 +1878,7 @@
             <mkdir dir="${build.maven.javadocs}"/>
             <javadoc verbose="false" author="false" destdir="${build.maven.javadocs}"
                      windowtitle="POI API Documentation" use="false" version="false"
-                     maxmemory="384M" additionalparam="-notimestamp -quiet" locale="en_US"
+                     maxmemory="384M" additionalparam="-notimestamp -quiet -Xdoclint:none" locale="en_US" Encoding="utf8"
                      classpathref="javadoc.classpath">
                 <packageset dir="@{src}" defaultexcludes="yes">
                     <include name="org/apache/poi/**"/>