JBossTools hangs when quickfixing : EL Validator cannot run on project a because Validation Builder precedes JBoss Knowledge Base Builder

create a new maven project check "Create a simple project (skip archetype selection)" fill in the GAV (Group ArtifactId Version) coordinates : x:x:0.0.1-SNAPSHOT select war packaging click finish copy the following content inside the generated pom.xml : <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>foo.bar</groupId> <artifactId>simple-jsf</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <dependencies> <dependency> <groupId>javax.faces</groupId> <artifactId>jsf-api</artifactId> <version>1.2_02</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <configuration> <webResources> <webResource> <directory>${basedir}/src/main/webapp/WEB-INF </directory> <includes> <include>web.xml</include> </includes> <targetPath>WEB-INF</targetPath> <filtering>true</filtering> </webResource> </webResources> </configuration> </plugin> </plugins> </build> </project> right click on the project, Maven > Update Project Configuration Problems View still contains 2 errors EL Validator cannot run on project a because Validation Builder precedes JBoss Knowledge Base Builder. JSF Composite Component Validator cannot run on project a because Validation Builder precedes JBoss Knowledge Base Builder. EXECUTE: quick-fix first error ASSERT: quick-fix dialog finishes