当我从Eclipse IDE启动Debug时,我收到以下错误.
信息:
“Failed to connect to remote VM. Connection Refused”
可能是什么原因？
我的系统上安装了Java 1.6和Tomcat 5.5.
但是Tomcat 5.5访问Java 1.5,因此结果我在Bad version number in .class file使用JSP执行java代码时遇到错误.
如何将Tomcat版本更改为Java 1.6？
UPDATE
我尝试更改tomcat5w.exe指向1.6版本的JVM,现在我没有Bad version in .class file出错.但现在,我收到以下错误.
exception
org.apache.jasper.JasperException
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:498)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:411)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:308)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:259)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
root cause
java.lang.NullPointerException
myfirst.SearchLink.checkURL(SearchLink.java:20)
org.apache.jsp.Test_jsp._jspService(Test_jsp.java:52)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:308)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:259)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
可能是根本原因？
当我尝试连接到本地机器上的远程服务器(jboss)时,一切都运行正常,但如果我尝试连接到远程机器(再次到jboss),eclipse开始连接,并在一段时间后告诉我
Failed to connect to remote VM. Connection timed out.
Timeout occurred while waiting for packet 1479.
但连接保持活动状态,我必须手动终止它以重新连接并获得连接超时错误
如何为远程调试设置超时,或者可能有其他解决此类问题的方法？
我正在尝试在IntelliJ IDEA12.1中调试glassfish 4应用程序并获得以下内容:
D:\tools\glassfish4\glassfish\bin\asadmin.bat start-domain --debug domain1
[2013-06-28 03:58:34,480] Artifact exchange-web:war: Server is not connected. Deploy is not available.
Detected server admin port: 4848
Detected server http port: 8080
Attempting to start domain1.... Please look at the server log for more details.....
但一切都没有开始 并且日志中没有错误.
那我该怎么做才能解决这个问题呢？