jetty跟java的兼容

Q132284591

　　下了个jdk1.4.2_19和jetty7.2.2，一运行，然后报错：
　　[Administrator] D:\jetty$ java -jar start.jar
Exception in thread "main" java.lang.UnsupportedClassVersionError: org/eclipse/j
etty/start/Main (Unsupported major.minor version 49.0)
        at java.lang.ClassLoader.defineClass0(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:12
3)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:251)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:55)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:194)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:274)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
　　[Administrator] D:\jetty$
　　根据http://docs.codehaus.org/display/JETTY/Downloading+Jetty：
Version Java HTTP Servlet JSP Status Notes Jetty-8 eclipse 1.6- HTTP/1.1 RFC2616 3.0 2.2 Development Standardized async Jetty-7 eclipse 1.5- HTTP/1.1 RFC2616 2.5 2.1 Stable org.eclipse.jetty Jetty-6.1 1.4-1.6 HTTP/1.1 RFC2616 2.5 2.1 or 2.0 Maintenance Async SSL, AJP, cometd, testing Jetty-6 1.4-1.5 HTTP/1.1 RFC2616 2.5 2.1 or 2.0 Deprecated Continuations, IOC, NIO, dynamic buffers, smaller, faster, better Jetty-5.1 1.2-1.5 HTTP/1.1 RFC2616 2.4 2.0 Deprecated J2EE 1.4 Compliance tested, optimizations, geronimo integration. Jetty-5.0 1.2-1.4 HTTP/1.1 RFC2616 2.4 2.0 Deprecated Schema, JettyPlus Jetty-4.2 1.2-1.4 HTTP/1.1 RFC2616 2.3+ 1.2 Deprecated JettyPlus Jetty-4.1 1.2-1.4 HTTP/1.1 RFC2616 2.3 1.2 Deprecated JAXP1.1, AJP13(mod_jk) Jetty-4.0 1.2 HTTP/1.1 RFC2616 2.3 1.2 Deprecated  Jetty-3.1 1.2 HTTP/1.1 RFC2068 2.2 1.1 Ancient JMX Jetty-3.0 1.2 HTTP/1.1 RFC2068 2.2 1.1 Fossilized  Jetty-2.4 1.1 HTTP/1.0 RFC1945 2.1 1.0 Legendary  Jetty-1.0 1.0 HTTP/1.0 RFC1945 - - Mythical  　　jetty7至少需要jdk1.5。看来我还是下个jetty6.1.5玩玩的比较好。