Essential Viewer does not work on Win 7 install

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trinhtuan
Posts: 14
Joined: 13 Dec 2012, 08:48

Hi all,
I installed everything without any errors, the Protege work fine with Essential meta-model however the Essential Viewer does not work.

If I access to
http://localhost:8080/essential_viewer/
or
http://localhost:8080/essential_viewer/reportService
then receiving HTTP error 503

I use Win7 and below is Tomcat log with some errors while loading Essential Viewer although the folder essential_viewer was created in webapps.

Any suggestion ? Thank you very much.

----- Tomcat Log
Dec 13, 2012 8:37:04 AM org.apache.catalina.core.AprLifecycleListener init
INFO: Loaded APR based Apache Tomcat Native library 1.1.23 using APR version 1.4
.6.
Dec 13, 2012 8:37:04 AM org.apache.catalina.core.AprLifecycleListener init
INFO: APR capabilities: IPv6 [true], sendfile [true], accept filters [false], ra
ndom [true].
Dec 13, 2012 8:37:05 AM org.apache.catalina.core.AprLifecycleListener initialize
SSL
INFO: OpenSSL successfully initialized with version OpenSSL 1.0.0g 18 Jan 2012
Dec 13, 2012 8:37:05 AM org.apache.coyote.http11.Http11AprProtocol init
INFO: Initializing Coyote HTTP/1.1 on http-8080
Dec 13, 2012 8:37:05 AM org.apache.coyote.ajp.AjpAprProtocol init
INFO: Initializing Coyote AJP/1.3 on ajp-8009
Dec 13, 2012 8:37:05 AM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 1895 ms
Dec 13, 2012 8:37:05 AM org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
Dec 13, 2012 8:37:05 AM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/6.0.36
Dec 13, 2012 8:37:05 AM org.apache.catalina.startup.HostConfig deployDescriptor
INFO: Deploying configuration descriptor host-manager.xml
Dec 13, 2012 8:37:06 AM org.apache.catalina.startup.HostConfig deployDescriptor
INFO: Deploying configuration descriptor manager.xml
Dec 13, 2012 8:37:06 AM org.apache.catalina.startup.HostConfig deployWAR
INFO: Deploying web application archive essential_viewer.war
Dec 13, 2012 8:37:06 AM org.apache.tomcat.util.modeler.Registry registerComponen
t
SEVERE: Null component Catalina:type=JspMonitor,name=jsp,WebModule=//localhost/e
ssential_viewer,J2EEApplication=none,J2EEServer=none
Dec 13, 2012 8:37:06 AM org.apache.catalina.startup.HostConfig deployWAR
SEVERE: Error deploying web application archive essential_viewer.war
java.lang.UnsupportedClassVersionError: Bad version number in .class file (unabl
e to load class com.enterprise_architecture.essential.report.ReportServiceImages
)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(Webapp
ClassLoader.java:2858)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoa
der.java:1159)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoa
der.java:1647)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoa
der.java:1526)
at org.apache.catalina.startup.WebAnnotationSet.loadApplicationServletAn
notations(WebAnnotationSet.java:108)
at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotatio
ns(WebAnnotationSet.java:58)
at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfi
g(ContextConfig.java:297)
at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:10
78)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfi
g.java:261)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(Lifecycl
eSupport.java:142)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4
612)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase
.java:799)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:77
9)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601)

at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:943)

at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:778
)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:504
)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1317)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java
:324)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(Lifecycl
eSupport.java:142)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1065)

at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)

at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463
)
at org.apache.catalina.core.StandardService.start(StandardService.java:5
25)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:754
)
at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Dec 13, 2012 8:37:06 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory docs
Dec 13, 2012 8:37:06 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory examples
Dec 13, 2012 8:37:06 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory ROOT
Dec 13, 2012 8:37:06 AM org.apache.coyote.http11.Http11AprProtocol start
INFO: Starting Coyote HTTP/1.1 on http-8080
Dec 13, 2012 8:37:06 AM org.apache.coyote.ajp.AjpAprProtocol start
INFO: Starting Coyote AJP/1.3 on ajp-8009
Dec 13, 2012 8:37:06 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 1050 ms
--------------------
trinhtuan
Posts: 14
Joined: 13 Dec 2012, 08:48

I found the cause, it dues to the JRE version.

I use the default attached jre 1.5.x with Protege for both Protege and Tomcat, it causes that issue.

Now I use the newer jre 1.7.x for both of them and it works fine.

Thanks.
User avatar
jonathan.carter
Posts: 1087
Joined: 04 Feb 2009, 15:44

Thanks for posting this.

Also make sure that if you're running 64-bit Windows to use the 64-bit Java for Windows.

Jonathan
Essential Project Team
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