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    After upgrading to 3.5 today I cannot access /api/ on engine server.<br>
    Apart from that everything else works ok<br>
    <br>
    G<br>
    <br>
    <h1>HTTP Status 500 - </h1>
    <hr noshade="noshade" size="1">
    <p><b>type</b> Exception report</p>
    <p><b>message</b> </p>
    <p><b>description</b> <u>The server encountered an internal error
        () that prevented it from fulfilling this request.</u></p>
    <p><b>exception</b> </p>
    <pre>javax.servlet.ServletException: Servlet.init() for servlet org.ovirt.engine.api.restapi.BackendApplication threw exception
        org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:489)
        org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153)
        org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        org.jboss.web.rewrite.RewriteValve.invoke(RewriteValve.java:466)
        org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368)
        org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:505)
        org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:445)
        org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)
        java.lang.Thread.run(Thread.java:745)
</pre>
    <p><b>root cause</b> </p>
    <pre>java.lang.RuntimeException: java.lang.RuntimeException: Unable to instantiate MessageBodyWriter
        org.jboss.resteasy.plugins.providers.RegisterBuiltin.register(RegisterBuiltin.java:35)
        org.jboss.resteasy.spi.ResteasyDeployment.start(ResteasyDeployment.java:211)
        org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.init(ServletContainerDispatcher.java:67)
        org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.init(HttpServletDispatcher.java:36)
        org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:489)
        org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153)
        org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        org.jboss.web.rewrite.RewriteValve.invoke(RewriteValve.java:466)
        org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368)
        org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:505)
        org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:445)
        org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)
        java.lang.Thread.run(Thread.java:745)
</pre>
    <p><b>root cause</b> </p>
    <pre>java.lang.RuntimeException: Unable to instantiate MessageBodyWriter
        org.jboss.resteasy.spi.ResteasyProviderFactory.registerProvider(ResteasyProviderFactory.java:772)
        org.jboss.resteasy.plugins.providers.RegisterBuiltin.registerProviders(RegisterBuiltin.java:70)
        org.jboss.resteasy.plugins.providers.RegisterBuiltin.register(RegisterBuiltin.java:31)
        org.jboss.resteasy.spi.ResteasyDeployment.start(ResteasyDeployment.java:211)
        org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.init(ServletContainerDispatcher.java:67)
        org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.init(HttpServletDispatcher.java:36)
        org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:489)
        org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153)
        org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        org.jboss.web.rewrite.RewriteValve.invoke(RewriteValve.java:466)
        org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368)
        org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:505)
        org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:445)
        org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)
        java.lang.Thread.run(Thread.java:745)
</pre>
    <p><b>root cause</b> </p>
    <pre>java.lang.RuntimeException: Failed to construct public org.ovirt.engine.api.pdf.FOPMessageBodyWriter()
        org.jboss.resteasy.core.ConstructorInjectorImpl.construct(ConstructorInjectorImpl.java:144)
        org.jboss.resteasy.spi.ResteasyProviderFactory.getProviderInstance(ResteasyProviderFactory.java:1039)
        org.jboss.resteasy.spi.ResteasyProviderFactory.addMessageBodyWriter(ResteasyProviderFactory.java:519)
        org.jboss.resteasy.spi.ResteasyProviderFactory.registerProvider(ResteasyProviderFactory.java:768)
        org.jboss.resteasy.plugins.providers.RegisterBuiltin.registerProviders(RegisterBuiltin.java:70)
        org.jboss.resteasy.plugins.providers.RegisterBuiltin.register(RegisterBuiltin.java:31)
        org.jboss.resteasy.spi.ResteasyDeployment.start(ResteasyDeployment.java:211)
        org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.init(ServletContainerDispatcher.java:67)
        org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.init(HttpServletDispatcher.java:36)
        org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:489)
        org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153)
        org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        org.jboss.web.rewrite.RewriteValve.invoke(RewriteValve.java:466)
        org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368)
        org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:505)
        org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:445)
        org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)
        java.lang.Thread.run(Thread.java:745)
</pre>
    <p><b>root cause</b> </p>
    <pre>java.lang.NoClassDefFoundError: org/apache/fop/apps/FopFactory
        org.ovirt.engine.api.pdf.FOPMessageBodyWriter.&lt;init&gt;(FOPMessageBodyWriter.java:51)
        sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
        sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        java.lang.reflect.Constructor.newInstance(Constructor.java:526)
        org.jboss.resteasy.core.ConstructorInjectorImpl.construct(ConstructorInjectorImpl.java:132)
        org.jboss.resteasy.spi.ResteasyProviderFactory.getProviderInstance(ResteasyProviderFactory.java:1039)
        org.jboss.resteasy.spi.ResteasyProviderFactory.addMessageBodyWriter(ResteasyProviderFactory.java:519)
        org.jboss.resteasy.spi.ResteasyProviderFactory.registerProvider(ResteasyProviderFactory.java:768)
        org.jboss.resteasy.plugins.providers.RegisterBuiltin.registerProviders(RegisterBuiltin.java:70)
        org.jboss.resteasy.plugins.providers.RegisterBuiltin.register(RegisterBuiltin.java:31)
        org.jboss.resteasy.spi.ResteasyDeployment.start(ResteasyDeployment.java:211)
        org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.init(ServletContainerDispatcher.java:67)
        org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.init(HttpServletDispatcher.java:36)
        org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:489)
        org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153)
        org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        org.jboss.web.rewrite.RewriteValve.invoke(RewriteValve.java:466)
        org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368)
        org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:505)
        org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:445)
        org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)
        java.lang.Thread.run(Thread.java:745)
</pre>
    <p><b>note</b> <u>The full stack trace of the root cause is
        available in the JBoss Web/7.0.13.Final logs.</u></p>
    <hr noshade="noshade" size="1">
    <h3>JBoss Web/7.0.13.Final</h3>
    <br>
    <br>
    server.log:<br>
    <br>
    2014-10-20 14:07:24,382 ERROR
    [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/api]]
    (ajp--127.0.0.1-8702-6) StandardWrapper.Throwable:
    java.lang.RuntimeException: java.lang.RuntimeException: Unable to
    instantiate MessageBodyWriter<br>
            at
    org.jboss.resteasy.plugins.providers.RegisterBuiltin.register(RegisterBuiltin.java:35)
    [resteasy-jaxrs-2.3.2.Final.jar:]<br>
            at
    org.jboss.resteasy.spi.ResteasyDeployment.start(ResteasyDeployment.java:211)
    [resteasy-jaxrs-2.3.2.Final.jar:]<br>
            at
    org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.init(ServletContainerDispatcher.java:67)
    [resteasy-jaxrs-2.3.2.Final.jar:]<br>
            at
    org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.init(HttpServletDispatcher.java:36)
    [resteasy-jaxrs-2.3.2.Final.jar:]<br>
            at
    org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1202)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:952)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:188)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:489)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153)
    [jboss-as-web-7.1.1.Final.jar:7.1.1.Final]<br>
            at
    org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.jboss.web.rewrite.RewriteValve.invoke(RewriteValve.java:466)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:505)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:445)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)
    [jbossweb-7.0.13.Final.jar:]<br>
            at java.lang.Thread.run(Thread.java:745) [rt.jar:1.7.0_65]<br>
    Caused by: java.lang.RuntimeException: Unable to instantiate
    MessageBodyWriter<br>
            at
    org.jboss.resteasy.spi.ResteasyProviderFactory.registerProvider(ResteasyProviderFactory.java:772)
    [resteasy-jaxrs-2.3.2.Final.jar:]<br>
            at
    org.jboss.resteasy.plugins.providers.RegisterBuiltin.registerProviders(RegisterBuiltin.java:70)
    [resteasy-jaxrs-2.3.2.Final.jar:]<br>
            at
    org.jboss.resteasy.plugins.providers.RegisterBuiltin.register(RegisterBuiltin.java:31)
    [resteasy-jaxrs-2.3.2.Final.jar:]<br>
            ... 18 more<br>
    Caused by: java.lang.RuntimeException: Failed to construct public
    org.ovirt.engine.api.pdf.FOPMessageBodyWriter()<br>
            at
    org.jboss.resteasy.core.ConstructorInjectorImpl.construct(ConstructorInjectorImpl.java:144)
    [resteasy-jaxrs-2.3.2.Final.jar:]<br>
            at
    org.jboss.resteasy.spi.ResteasyProviderFactory.getProviderInstance(ResteasyProviderFactory.java:1039)
    [resteasy-jaxrs-2.3.2.Final.jar:]<br>
            at
    org.jboss.resteasy.spi.ResteasyProviderFactory.addMessageBodyWriter(ResteasyProviderFactory.java:519)
    [resteasy-jaxrs-2.3.2.Final.jar:]<br>
            at
    org.jboss.resteasy.spi.ResteasyProviderFactory.registerProvider(ResteasyProviderFactory.java:768)
    [resteasy-jaxrs-2.3.2.Final.jar:]<br>
            ... 20 more<br>
    Caused by: java.lang.NoClassDefFoundError:
    org/apache/fop/apps/FopFactory<br>
            at
    org.ovirt.engine.api.pdf.FOPMessageBodyWriter.&lt;init&gt;(FOPMessageBodyWriter.java:51)
    [restapi-definition.jar:]<br>
            at
    sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
    Method) [rt.jar:1.7.0_65]<br>
            at
    sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    [rt.jar:1.7.0_65]<br>
            at
    sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    [rt.jar:1.7.0_65]<br>
            at
    java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    [rt.jar:1.7.0_65]<br>
            at
    org.jboss.resteasy.core.ConstructorInjectorImpl.construct(ConstructorInjectorImpl.java:132)
    [resteasy-jaxrs-2.3.2.Final.jar:]<br>
            ... 23 more<br>
    <br>
    2014-10-20 14:07:24,405 ERROR
    [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/api].[org.ovirt.engine.api.restapi.BackendApplication]]
    (ajp--127.0.0.1-8702-6) Allocate exception for servlet
    org.ovirt.engine.api.restapi.BackendApplication:
    java.lang.NoClassDefFoundError: org/apache/fop/apps/FopFactory<br>
            at
    org.ovirt.engine.api.pdf.FOPMessageBodyWriter.&lt;init&gt;(FOPMessageBodyWriter.java:51)
    [restapi-definition.jar:]<br>
            at
    sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
    Method) [rt.jar:1.7.0_65]<br>
            at
    sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    [rt.jar:1.7.0_65]<br>
            at
    sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    [rt.jar:1.7.0_65]<br>
            at
    java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    [rt.jar:1.7.0_65]<br>
            at
    org.jboss.resteasy.core.ConstructorInjectorImpl.construct(ConstructorInjectorImpl.java:132)
    [resteasy-jaxrs-2.3.2.Final.jar:]<br>
            at
    org.jboss.resteasy.spi.ResteasyProviderFactory.getProviderInstance(ResteasyProviderFactory.java:1039)
    [resteasy-jaxrs-2.3.2.Final.jar:]<br>
            at
    org.jboss.resteasy.spi.ResteasyProviderFactory.addMessageBodyWriter(ResteasyProviderFactory.java:519)
    [resteasy-jaxrs-2.3.2.Final.jar:]<br>
            at
    org.jboss.resteasy.spi.ResteasyProviderFactory.registerProvider(ResteasyProviderFactory.java:768)
    [resteasy-jaxrs-2.3.2.Final.jar:]<br>
            at
    org.jboss.resteasy.plugins.providers.RegisterBuiltin.registerProviders(RegisterBuiltin.java:70)
    [resteasy-jaxrs-2.3.2.Final.jar:]<br>
            at
    org.jboss.resteasy.plugins.providers.RegisterBuiltin.register(RegisterBuiltin.java:31)
    [resteasy-jaxrs-2.3.2.Final.jar:]<br>
            at
    org.jboss.resteasy.spi.ResteasyDeployment.start(ResteasyDeployment.java:211)
    [resteasy-jaxrs-2.3.2.Final.jar:]<br>
            at
    org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.init(ServletContainerDispatcher.java:67)
    [resteasy-jaxrs-2.3.2.Final.jar:]<br>
            at
    org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.init(HttpServletDispatcher.java:36)
    [resteasy-jaxrs-2.3.2.Final.jar:]<br>
            at
    org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1202)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:952)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:188)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:489)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153)
    [jboss-as-web-7.1.1.Final.jar:7.1.1.Final]<br>
            at
    org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.jboss.web.rewrite.RewriteValve.invoke(RewriteValve.java:466)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:505)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:445)
    [jbossweb-7.0.13.Final.jar:]<br>
            at
    org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)
    [jbossweb-7.0.13.Final.jar:]<br>
            at java.lang.Thread.run(Thread.java:745) [rt.jar:1.7.0_65]<br>
    <br>
    <br>
    My packages are:<br>
    ovirt-engine-3.5.0.1-1.el6.noarch<br>
    ovirt-engine-backend-3.5.0.1-1.el6.noarch<br>
    ovirt-engine-cli-3.5.0.5-1.el6.noarch<br>
    ovirt-engine-dbscripts-3.5.0.1-1.el6.noarch<br>
    ovirt-engine-dwh-3.5.0-1.el6.noarch<br>
    ovirt-engine-dwh-setup-3.5.0-1.el6.noarch<br>
    ovirt-engine-extensions-api-impl-3.5.0.1-1.el6.noarch<br>
    ovirt-engine-jboss-as-7.1.1-1.el6.x86_64<br>
    ovirt-engine-lib-3.5.0.1-1.el6.noarch<br>
    ovirt-engine-reports-3.5.1-0.1.el6.noarch<br>
    ovirt-engine-reports-setup-3.5.1-0.1.el6.noarch<br>
    ovirt-engine-restapi-3.5.0.1-1.el6.noarch<br>
    ovirt-engine-sdk-python-3.5.0.7-1.el6.noarch<br>
    ovirt-engine-setup-3.5.0.1-1.el6.noarch<br>
    ovirt-engine-setup-base-3.5.0.1-1.el6.noarch<br>
    ovirt-engine-setup-plugin-ovirt-engine-3.5.0.1-1.el6.noarch<br>
    ovirt-engine-setup-plugin-ovirt-engine-common-3.5.0.1-1.el6.noarch<br>
    ovirt-engine-setup-plugin-websocket-proxy-3.5.0.1-1.el6.noarch<br>
    ovirt-engine-tools-3.5.0.1-1.el6.noarch<br>
    ovirt-engine-userportal-3.5.0.1-1.el6.noarch<br>
    ovirt-engine-webadmin-portal-3.5.0.1-1.el6.noarch<br>
    ovirt-engine-websocket-proxy-3.5.0.1-1.el6.noarch<br>
    ovirt-host-deploy-1.3.0-1.el6.noarch<br>
    ovirt-host-deploy-java-1.3.0-1.el6.noarch<br>
    ovirt-image-uploader-3.5.0-1.el6.noarch<br>
    ovirt-iso-uploader-3.5.0-1.el6.noarch<br>
    ovirt-log-collector-3.5.0-1.el6.noarch<br>
    ovirt-release34-1.0.3-1.noarch<br>
    ovirt-release35-001-1.noarch<br>
    <br>
  </body>
</html>