jboss Resteasy for java 5
有没有在jdk 5环境下运行的resteasy版本？我尝试在 java 5 中编译我的代码，但它不起作用，说版本问题。这里有解决办法吗？
类型异常报告
消息
描述服务器遇到一个 阻止它的内部错误 () 满足此请求。
异常
javax.servlet.ServletException：错误 实例化servlet类 org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:879) org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) java.lang.Thread.run(Thread.java:595)
根本原因
java.lang.UnsupportedClassVersionError： .class 文件中的版本号错误 （无法加载类 javax.ws.rs.core.UriInfo） org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1964) org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:933) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1405) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1284) java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) java.lang.Class.getDeclaredConstructors0(本机 方法） java.lang.Class.privateGetDeclaredConstructors(Class.java:2357) java.lang.Class.getConstructor0(Class.java:2671) java.lang.Class.newInstance0(Class.java:321) java.lang.Class.newInstance(Class.java:303) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:879) org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) java.lang.Thread.run(Thread.java:595)
note 根的完整堆栈跟踪 原因可在 Apache 中找到 Tomcat/5.5.31 日志。
Is there a resteasy version that runs on jdk 5 enviroment? I tried to compile my code in java 5 but it didnot work saying version problem. Is there a solution here?
type Exception report
message
description The server encountered an
internal error () that prevented it
from fulfilling this request.exception
javax.servlet.ServletException: Error
instantiating servlet class
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:879)
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
java.lang.Thread.run(Thread.java:595)root cause
java.lang.UnsupportedClassVersionError:
Bad version number in .class file
(unable to load class
javax.ws.rs.core.UriInfo)
org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1964)
org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:933)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1405)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1284)
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
java.lang.Class.getDeclaredConstructors0(Native
Method)
java.lang.Class.privateGetDeclaredConstructors(Class.java:2357)
java.lang.Class.getConstructor0(Class.java:2671)
java.lang.Class.newInstance0(Class.java:321)
java.lang.Class.newInstance(Class.java:303)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:879)
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
java.lang.Thread.run(Thread.java:595)note The full stack trace of the root
cause is available in the Apache
Tomcat/5.5.31 logs.
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感谢您更新。这与您在此处的其他问题中询问的错误相同 如何在java 5环境中使用java 6功能，不是吗？
基本上该问题的答案是正确的并描述了您的问题的解决方案。
Resteasy 细节：最新的 Resteasy 发行版 (2.1.0.GA) 似乎是针对 JRE 6 编译的，但 2.0.1.GA 可以与 JRE 5 兼容（或者如果您想自己编译，则提供源代码）。理想情况下，升级服务器上使用的 java 版本。如果没有其他的话，更高版本会有性能改进。
最后，确保您没有将 tomcat 的版本（5 或 6）与 Java 的版本（巧合的是 5 或 6）混淆。
Thanks for updating. This is the same error that you have asked about in your other question here How to use java 6 features in a java 5 environment, isn't it?
Basically the answers given to that question are correct and describe the solution your problem.
Resteasy specifics: The latest Resteasy distribution (2.1.0.GA) does seem to be compiled for JRE 6, but 2.0.1.GA is OK with JRE 5 (or the source is provided if you want to compile it yourself). Ideally, upgrade the version of java used on the server. Later versions have performance improvements if nothing else.
Finally, make sure you are not confusing the version of tomcat (5 or 6) with the version of Java (also, coincidentally 5 or 6).