JBoss RESTEasy Unable to scan WEB-INF for JAX-RS annotations

Question

I just added JAX-RS web services to my project in MyEclipse and did my export/deploy to jboss 6/jdk 1.6, but I keep getting this error and I have no clue why it comes up. Here's the first few lines of this stack trace:

2011-05-03 21:33:46,716 INFO  [org.jboss.resteasy.integration.deployers.ResteasyIntegrationDeployer] (HDScanner) *** Adding JAX-RS resource classes: com.mycompany.CategoriesResource
2011-05-03 21:33:47,180 INFO  [org.jboss.web.tomcat.service.deployers.TomcatDeployment] (HDScanner) deploy, ctxPath=/mypath
2011-05-03 21:33:47,330 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/mypath]] (HDScanner) Exception sending context initialized event to listener instance of class org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap: java.lang.RuntimeException: Unable to scan WEB-INF for JAX-RS annotations, you must manually register your classes/resources

Has anyone had trouble with this before? The project was created in MyEclipse with Struts and Web Service Capabilities if that helps. I honestly don't know what else I can try considering I just recently deployed a similar configuration without any problems.

Thanks!

Here is my web.xml

http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"> action org.apache.struts.action.ActionServlet config /WEB-INF/struts-config.xml debug 3 detail 3 0

<listener>
    <listener-class>org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap</listener-class>
</listener>
<servlet>
    <display-name>API</display-name>
    <servlet-name>API</servlet-name>
    <servlet-class>org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>API</servlet-name>
    <url-pattern>/api/*</url-pattern>
</servlet-mapping>
<context-param>
    <param-name>resteasy.scan</param-name>
    <param-value>true</param-value>
</context-param>
<context-param>
    <param-name>resteasy.servlet.mapping.prefix</param-name>
    <param-value>/api</param-value>
</context-param>
<servlet-mapping>
    <servlet-name>action</servlet-name>
    <url-pattern>*.do</url-pattern>
</servlet-mapping>
<welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
</welcome-file-list>

<jsp-config>
    <taglib>
        <taglib-uri>http://struts.apache.org/tags-bean</taglib-uri>
        <taglib-location>/WEB-INF/struts-bean.tld</taglib-location>
    </taglib>
    <taglib>
        <taglib-uri>http://struts.apache.org/tags-html</taglib-uri>
        <taglib-location>/WEB-INF/struts-html.tld</taglib-location>
    </taglib>
    <taglib>
        <taglib-uri>http://struts.apache.org/tags-logic</taglib-uri>
        <taglib-location>/WEB-INF/struts-logic.tld</taglib-location>
    </taglib>
    <taglib>
        <taglib-uri>http://struts.apache.org/tags-tiles</taglib-uri>
        <taglib-location>/WEB-INF/struts-tiles.tld</taglib-location>
    </taglib>
    <taglib>
        <taglib-uri>http://struts.apache.org/tags-nested</taglib-uri>
        <taglib-location>/WEB-INF/struts-nested.tld</taglib-location>
    </taglib>
</jsp-config>

Answer 1

This means that RESTEasy received an IOException when trying to scan the WEB-INF directory. The first thing I would check is your file system permisions - can the user running the JBoss process read WEB-INF and all the files within it?

EDIT:

In response to your comment: Your classpath includes an entry that Scannotation doesn't understand. It looks like jndi://. Can you check the classpath and find out what this entry is?

Answer 2

Resteasy should be the victim, too. The problem is at scannotation-1.0.3.jar.

DirectoryIteratorFactory factory = registry.get(url.getProtocol());
if (factory == null) throw new IOException("Unable to scan directory of protocol: " + url.getProtocol());
return factory.create(url, filter);

It seems when the url.getProtocol() returns "jdni", this problem happens. I'm still investigating what url will return protocol as jndi.

I deleted the scannotation-1.0.3.jar from my lib folder, and downloaded the source code, printed the bad url. It turned out to be: jndi:/localhost/Enoch2/WEB-INF/lib/.svn/

Then I tried to remove all .svn folders from the deployment. It works. find . -name .svn | xargs rm -Rf

Answer 3

I faced the same issue when I moved my maven project from java 6 to java 8. The cause was some dependancy in my project was holding on to javassit 3.12 and it was not compatible with java 8. After I upgraded javassist to 3.20 it started working fine. So if you face this issue please check the javassist jar used and upgrade if needed.

Answer 4

I have faced this issue recently.
javassist version was not supported with Java 8 changes. So I have excluded this jar from that dependency and added externally javassist dependency(with higer version).

LOG:
SEVERE: Exception sending context initialized event to listener instance of class [org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap]

java.lang.RuntimeException: Unable to scan WEB-INF for JAX-RS annotations, you must manually register your classes/resources

    at org.jboss.resteasy.plugins.server.servlet.ConfigurationBootstrap.createDeployment(ConfigurationBootstrap.java:177)

    at org.jboss.resteasy.plugins.server.servlet.ListenerBootstrap.createDeployment(ListenerBootstrap.java:32)

    at org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap.contextInitialized(ResteasyBootstrap.java:27)

My Solution:

Updated my pom.xml file

<dependency>
    <groupId>com.xyz</groupId>
    <artifactId>abc</artifactId>
    <version>${abc.version}</version>
    <exclusions>
        <exclusion>
            <groupId>javassist</groupId>
            <artifactId>javassist</artifactId>
        </exclusion>
    </exclusions>
</dependency>

and added dependency

<dependency>
    <groupId>org.javassist</groupId>
    <artifactId>javassist</artifactId>
    <version>3.18.2-GA</version>
</dependency>