基于OSGi的JSF Web组件开发问题求解

最近一直在研究OSGi Web组建开发,跑了一些小程序中间出现了不少问题,其中很多是由于对OSGi理解不够深入,当然还有些问题,目前也没有解决的办法,因此贴出来想让大伙帮帮忙。


具体情况如下:
1.拿纯Java代码编写的JSP页面进行测试,结果一切正常,说明JspServlet已经成功加载。
2.编写简单的JSF页面进行测试,结果出现错误提示,具体如下:

osgi> Jul 4, 2008 11:58:22 AM org.mortbay.jetty.servlet.ServletHandler handle
WARNING: EXCEPTION
org.apache.jasper.JasperException: Unable to read TLD "META-INF/jsf_core.tld" from JAR file "bundleentry://136/src/main/java/webapp/WEB-INF/lib/jsf-impl-1.2_04-p02.jar": org.apache.jasper.JasperException: Failed to load or instantiate TagLibraryValidator class: com.sun.faces.taglib.jsf_core.CoreValidator
at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
at org.eclipse.equinox.jsp.jasper.JspServlet.service(JspServlet.java:112)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
at org.eclipse.equinox.http.servlet.internal.ServletRegistration.handleRequest(ServletRegistration.java:90)
at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:111)
at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:67)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
at org.eclipse.equinox.http.jetty.internal.HttpServerManager$InternalHttpServiceServlet.service(HttpServerManager.java:288)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:428)
at org.mortbay.jetty.servlet.ServletHandler.dispatch(ServletHandler.java:677)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:568)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1530)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1482)
at org.mortbay.http.HttpServer.service(HttpServer.java:909)
at org.mortbay.http.HttpConnection.service(HttpConnection.java:820)
at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:986)
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:837)
at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:245)
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)

起初我怀疑可能是不是那个tld文件已经损毁了,但是当我将整个工程转换成普通Web工程在Tomcat下运行一切正常,因此,我判断,首先可以保证tld文件是正常的。

后来在网上查阅了很多这方面的资料(相关资料确实很少,而且问多答少),有些人说需要在servlet-api-2.5.jar和jsp-api.jar之间做出选择,删掉其中一个jar就可以了,而事实上是这两个jar对我进行OSGi组建开发都至关重要,因此无法删除。

: 关于代码详情,见附件。

下面是相关用到的约束bundle:
id State       Bundle
0 ACTIVE      org.eclipse.osgi_3.3.2.R33x_v20080105
1 ACTIVE      org.eclipse.equinox.common_3.3.0.v20070426
3 ACTIVE      javax.servlet_2.4.0.v200706111738
4 ACTIVE      org.apache.commons.logging_1.0.4.v200706111724
5 ACTIVE      org.apache.commons.el_1.0.0.v200706111724
6 ACTIVE      org.apache.commons.logging_1.0.4
7 ACTIVE      javax.servlet.jsp_2.0.0.v200706191603
10 ACTIVE      org.eclipse.osgi.services_3.1.200.v20070605
11 ACTIVE      org.eclipse.equinox.launcher_1.0.1.R33x_v20080118
12 ACTIVE      org.eclipse.equinox.jsp.jasper.registry_1.0.0.v20070607
15 ACTIVE      org.eclipse.equinox.http.helper_1.0.0.qualifier
16 ACTIVE      org.mortbay.jetty_5.1.11.v200706111724
20 ACTIVE      org.eclipse.equinox.http.registry_1.0.1.R33x_v20071231
21 ACTIVE      org.eclipse.equinox.http.jetty_1.0.1.R33x_v20070816
22 ACTIVE      org.eclipse.equinox.registry_3.3.1.R33x_v20070802
23 ACTIVE      org.eclipse.equinox.http.servlet_1.0.1.R33x_v20070816
24 ACTIVE      org.eclipse.core.jobs_3.3.1.R33x_v20070709
58 ACTIVE      org.eclipse.equinox.jsp.jasper_1.0.100.qualifier
76 ACTIVE      org.apache.jasper_5.5.17.v200806031609
136 ACTIVE      MyJSFBundle_1.0.0

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