cas 5.0.3 + ldap support

[Armando Martins]

Hi,

I'm trying to configure a cas server with ldap support but when i start my tomcat8, i always have this error :

2017-02-23 17:11:45,449 WARN [org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext] - <Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'servletContainer' defined in class path resource [org/apereo/cas/config/CasEmbeddedContainerConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.context.embedded.EmbeddedServletContainerFactory]: Factory method 'servletContainer' threw exception; nested exception is java.lang.LinkageError: loader constraint violation: loader (instance of org/apache/catalina/loader/WebappClassLoader) previously initiated loading for a different type with name "org/apache/coyote/ProtocolHandler">

It seems to me that there is a conflict between a cas java class and a tomcat8 java class. But i don't understand how i can solve this problem....

Thanks

--

Armando Martins

[Todd Pratt]

You are correct, if you've used the cas overlay template to build it then it would include tomcat embed libraries and you would need to remove them from the war file that it built to deploy on your own tomcat server.

[Armando Martins]

Thanks a lot for your answer Todd. Do you know if there is a way to exclude this libraries in the pom.xml?

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[Todd Pratt]

Yes,  add <packagingExcludes>WEB-INF/lib/tomcat-*.jar</packagingExcludes> to your maven plugin section in your pom.xml file.  Example of the one I use below.

            <plugin>

                <groupId>org.apache.maven.plugins</groupId>

                <artifactId>maven-war-plugin</artifactId>

                <version>2.6</version>

                <configuration>

                    <warName>cas</warName>

                    <failOnMissingWebXml>false</failOnMissingWebXml>

                    <recompressZippedFiles>false</recompressZippedFiles>

                    <archive>

                        <compress>false</compress>

                        <manifestFile>${project.build.directory}/war/work/org.apereo.cas/cas-server-webapp/META-INF/MANIFEST.MF

                        </manifestFile>

                    </archive>

                    <overlays>

                        <overlay>

                            <groupId>org.apereo.cas</groupId>

                            <artifactId>cas-server-webapp</artifactId>

                        </overlay>

                    </overlays>

                    <packagingExcludes>WEB-INF/lib/tomcat-*.jar</packagingExcludes>

                </configuration>

            </plugin>

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