启动Tomcat时出错,不支持的主要/次要版本,环境变量似乎正确

Question

我在Linux上从命令行启动Tomcat 7时遇到问题,日志显示:

Sep 24, 2012 8:54:10 AM org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the jav
a.library.path: /usr/lib64/jvm/java-1.6.0-openjdk-1.6.0/jre/lib/amd64/server:/usr/lib64/jvm/java-1.6.0-openjdk-1.6.0/jre/lib/amd64:/u
sr/lib64/jvm/java-1.6.0-openjdk-1.6.0/jre/../lib/amd64:/usr/lib64/mpi/gcc/openmpi/lib64:/usr/java/packages/lib/amd64:/usr/lib64:/lib6
4:/lib:/usr/lib
Sep 24, 2012 8:54:10 AM org.apache.tomcat.util.digester.Digester startElement
SEVERE: Begin event threw error
java.lang.UnsupportedClassVersionError: pms/security/BCryptRealm : Unsupported major.minor version 51.0
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:634)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)
        at java.net.URLClassLoader.access$000(URLClassLoader.java:73)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:212)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
        at org.apache.tomcat.util.digester.ObjectCreateRule.begin(ObjectCreateRule.java:144)
        at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1276)
        at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:504)
        at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:182)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.jav
a:1320)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScann
erImpl.java:2732)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:625)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:48
8)
        at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:819)
        at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:748)
        at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:123)
        at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1208)
        at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:525)
        at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1537)
        at org.apache.catalina.startup.Catalina.load(Catalina.java:610)
        at org.apache.catalina.startup.Catalina.load(Catalina.java:658)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:616)
        at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:281)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:450)

从谷歌搜索我理解第一点我可以忽略,但我想知道这是否表明它试图使用的Java版本,因为它一直在说Java 6."不支持的major.minor版本51.0"我理解意味着我有某种程度上Java版本的问题.

我使用ant构建了类(使用BCrypt的自定义域)的类,并且运行ant -v显示它正在使用Java 7进行编译,这正是我想要的.我已经将JAVA_HOME和JDK_HOME设置为使用Java 7(就我所知,它们都指向同一个地方).

我还缺少什么？如果需要更多信息,请告诉我.我真的很感激任何指针,我应该寻找出错的地方.谢谢.

ETA在评论中每个问题多一点信息:我通过命令行启动tomcat.我只是从tomcat基目录中执行./bin/startup.sh.我从Apache网站下载了tomcat .我得到了核心tar.gz版本,并在昨晚解压缩(我之前只有版本6并且想升级).这也不是我个人的机器; 如果这很重要,我只拥有用户权限.

Answer 1

打开tomcat/bin目录并更改JAVA_HOMEparmatercatalina.sh