Java JDK版本eclipse Blackboard 9.1 java.lang.UnsupportedClassVersionError

时间：2012-09-07 11:53:12

标签： eclipse java blackboard

我已经成功实施并部署了一个hello world项目，添加了一个管理示例管理工具。 我在eclipse（项目，蚂蚁和一般eclipse java设置）中将所有版本的JRE / JDK更正为3个地方之后做了这个。 现在我正在尝试编译由外部承包商（以.war格式工作）提供给我们的项目。我想自己扩展项目。 该项目有轴罐等，并引用黑板罐，虽然它在eclipse中编译，在部署到Bb并运行它后，我得到： 因为java.lang.UnsupportedClassVersionError 我试过在JDK 1.7中编译，我也得到一个错误。它似乎与版本有关 - 我应该将哪个JDK版本用于Bb 9.1？ 谁能摆脱任何光明？ 完整错误： COM /流/ SearchManager的

java.lang.UnsupportedClassVersionError: com/streaming/SearchManager
    at org.apache.jsp.helix.resultsList_jsp._jspService(resultsList_jsp.java:129)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:386)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at sun.reflect.GeneratedMethodAccessor1109.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:270)
    at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:269)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
    at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:302)
    at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:163)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:283)
    at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:56)
    at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:189)
    at java.security.AccessController.doPrivileged(Native Method)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185)
    at blackboard.platform.servlet.B2ContextFilter.doFilter(B2ContextFilter.java:121)
    at sun.reflect.GeneratedMethodAccessor1114.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:270)
    at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:269)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
    at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:302)
    at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
    at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:56)
    at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:189)
    at java.security.AccessController.doPrivileged(Native Method)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185)
    at blackboard.platform.servlet.ContentTypeFilter.doFilter(ContentTypeFilter.java:57)
    at sun.reflect.GeneratedMethodAccessor1112.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:270)
    at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:269)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
    at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:302)
    at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
    at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:56)
    at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:189)
    at java.security.AccessController.doPrivileged(Native Method)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185)
    at blackboard.platform.servlet.XssServletFilter.doFilter(XssServletFilter.java:139)
    at sun.reflect.GeneratedMethodAccessor1111.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:270)
    at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:269)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
    at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:302)
    at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
    at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:56)
    at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:189)
    at java.security.AccessController.doPrivileged(Native Method)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185)
    at blackboard.platform.servlet.RequestSessionFilter.doFilter(RequestSessionFilter.java:123)
    at sun.reflect.GeneratedMethodAccessor1110.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:270)
    at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:269)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
    at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:302)
    at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
    at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:56)
    at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:189)
    at java.security.AccessController.doPrivileged(Native Method)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:554)
    at org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:647)
    at blackboard.tomcat.valves.LoggingRemoteIpValve.invoke(LoggingRemoteIpValve.java:44)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
    at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)
    at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291)
    at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:776)
    at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:705)
    at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:898)
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
    at java.lang.Thread.run(Thread.java:662)

1 个答案:

答案 0 :(得分：0)

JDK运行的版本将根据本地设置而有所不同。在Blackboard Learn 9.1 Service Pack 10（2012年10月发行版）之后，系统应运行JDK 1.7版本。之前它们可能在JDK1.6下运行，尽管有些运行在1.7以下。您应该与本地管理员联系，以确定JDK的路径并获取使用的版本。 JDK的路径存储在bb-config.properies文件中。

您的jsp文件中的问题可能是它引用了webapps / WEB-INF / lib（本地Building Block库）中的库，该库与目标Blackboard系统上的JDK版本不兼容。看来你的jsp是在黑板服务器上运行时编译的，并且由于第三方库的兼容性而失败。如果要在war文件中预编译jsp，则必须使用jspc作为ant任务。

相关问题
最新问题