Hi Devs,
In the latest ESB 490 packs, we have observed several mediator UIs are
throwing the following exceptions[1] related to javax.servlet API. This
issue is reported in [2] and [3]. This issue is related to package imports.
When I debug from the OsgiConsole, I found that the javax.servlet package
is imported through a dependency and it has the following versions.
javax.servlet; version="[3.0.0,4.0.0)"<unwired><optional>
javax.servlet.http; version="[3.0.0,4.0.0)"<unwired><optional>
But we only have version 2.6.0 at the runtime. I have already fixed this
issue by explicitly importing these two packages in the pom file of the
relevant UI bundle like below.
javax.servlet.http;version="${imp.pkg.version.javax.servlet}",
javax.servlet;version="${imp.pkg.version.javax.servlet}",
But the concern is that we need to do this is for each and every mediator
UI pom file which fails due to this exception (we have 3 already). Is there
a better way to tackle this issue?
[1]
[2015-07-24 15:07:30,544] ERROR - ApplicationDispatcher
Servlet.service() for servlet bridgeservlet threw exception
java.lang.NoClassDefFoundError: javax/servlet/ServletConfig
at
org.wso2.carbon.mediator.dblookup.DBLookupMediatorClient.getInstance(DBLookupMediatorClient.java:61)
at
org.apache.jsp.dblookup_002dmediator.edit_002dmediator_jsp._jspService(edit_002dmediator_jsp.java:181)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.wso2.carbon.ui.JspServlet.service(JspServlet.java:155)
at org.wso2.carbon.ui.TilesJspServlet.service(TilesJspServlet.java:80)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at
org.eclipse.equinox.http.helper.ContextPathServletAdaptor.service(ContextPathServletAdaptor.java:37)
at
org.eclipse.equinox.http.servlet.internal.ServletRegistration.service(ServletRegistration.java:61)
at
org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:128)
at
org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:68)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at
org.wso2.carbon.tomcat.ext.servlet.DelegationServlet.service(DelegationServlet.java:68)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:748)
at
org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:604)
at
org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:543)
at
org.eclipse.equinox.http.servlet.internal.RequestDispatcherAdaptor.include(RequestDispatcherAdaptor.java:37)
at
org.eclipse.equinox.http.helper.ContextPathServletAdaptor$RequestDispatcherAdaptor.include(ContextPathServletAdaptor.java:369)
at
org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:954)
[2] https://wso2.org/jira/browse/ESBJAVA-3958
[3] https://wso2.org/jira/browse/ESBJAVA-3950
Thanks,
Chanaka
--
--
Chanaka Fernando
Senior Technical Lead
WSO2, Inc.; http://wso2.com
lean.enterprise.middleware
mobile: +94 773337238
Blog : http://soatutorials.blogspot.com
LinkedIn:http://www.linkedin.com/pub/chanaka-fernando/19/a20/5b0
Twitter:https://twitter.com/chanakaudaya
Wordpress:http://chanakaudaya.wordpress.com
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