disable not applicable findbugs check

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1567815 13f79535-47bb-0310-9956-ffa450edef68

build.xml

@@ -1404,7 +1404,8 @@ under the License.
 				</fileset>
 			</classpath>
 		</taskdef>
-		<findbugs home="${findbugs.home}" output="html" outputFile="build/findbugs.html">
+		<findbugs home="${findbugs.home}" output="html" outputFile="build/findbugs.html"
+			includeFilter="src/resources/devtools/findbugs-filters.xml">
 			<fileset dir="${dist.dir}">
 				<include name="poi-${version.id}-*.jar"/>
 				<include name="poi-scratchpad-${version.id}-*.jar"/>

src/resources/devtools/findbugs-filters.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+   ====================================================================
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You under the Apache License, Version 2.0
+   (the "License"); you may not use this file except in compliance with
+   the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+   ====================================================================
+-->
+<FindBugsFilter>
+<Match>
+<Not><Bug pattern="CN_IMPLEMENTS_CLONE_BUT_NOT_CLONEABLE"/></Not>
+</Match>
+</FindBugsFilter>