jdk里面的tools.jar和Tomcat里lib下的tools.jar版本要一致

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在运行TOMCAT5.0时候由出现了如下的错误:2005-11-17 19:38:47 StandardWrapperValve[action]: Servlet.service() for servlet action threw exceptionorg.apache.jasper.JasperException: Unable to compile class for JSP Generated servlet error:C:/application/Tomcat 5.0/work/Catalina/localhost/mlinkweb/org/apache/jsp/layouts/layout_005findex_jsp.java:7: cannot access java.lang.ObjectGenerated servlet error:bad class file: C:/application/Java/jdk1.5.0/jre/lib/rt.jar(java/lang/Object.class)class file has wrong version 49.0, should be 48.0Please remove or make sure it appears in the correct subdirectory of the classpath.public final class layout_005findex_jsp extends org.apache.jasper.runtime.HttpJspBase ^1 error最后在SUN的JAVA论坛里面找到了答案,只要将JDK1.5的LIB下面的TOOLS.JAR覆盖TOMCAT5.0目录/common/lib下面的tools.jar,然后重启TOMCAT5.0就可以了