[nobug] fix findbugs version to 2.3.1
diff --git a/bundles/org.eclipse.wst.xml.xpath2.processor/pom.xml b/bundles/org.eclipse.wst.xml.xpath2.processor/pom.xml
index b3eaa10..3fcd2fb 100644
--- a/bundles/org.eclipse.wst.xml.xpath2.processor/pom.xml
+++ b/bundles/org.eclipse.wst.xml.xpath2.processor/pom.xml
@@ -28,11 +28,12 @@
             <version>2.3.1</version>
             <configuration>
                <findbugsXmlOutput>true</findbugsXmlOutput>
+               <failOnError>false</failOnError>
             </configuration>
             <executions>
                <execution>
                   <goals>
-                     <goal>findbugs</goal>
+                     <goal>check</goal>
                   </goals>
                </execution>
             </executions>