Enable build to work on Java 8. It is currently failing on Gump that recently switched.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/bsf/trunk@1637387 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/build.xml b/build.xml
index 8fdf52e..a623c6d 100644
--- a/build.xml
+++ b/build.xml
@@ -277,7 +277,7 @@
 	<target name="javadocs" description="Generates the API documentation." depends="compile">
 		<mkdir dir="${build.javadocs}" />
 		<!-- FIXME: Excluding some packages temporarily -->
-		<javadoc packagenames="${packages}" failonerror="true" excludepackagenames="org.apache.bsf.engines.java, org.apache.bsf.engines.javaclass" destdir="${build.javadocs}" author="true" version="false" use="true" windowtitle="${project.fullName} API" doctitle="${project.fullName}" source="${source.level}">
+		<javadoc packagenames="${packages}" failonerror="true" excludepackagenames="org.apache.bsf.engines.java, org.apache.bsf.engines.javaclass" destdir="${build.javadocs}" author="true" version="false" use="true" windowtitle="${project.fullName} API" doctitle="${project.fullName}" source="${source.level}" additionalparam="-Xdoclint:none">
 			<classpath refid="compile.classpath" />
 			<fileset dir="${src.dir}">
 				<patternset refid="java.source.files"></patternset>