-------------------------------------------- On Tue, 2/20/18, Konstantin Kolinko <knst.koli...@gmail.com> wrote:
Subject: Re: Tomcat stopped and Debug can't be done in Eclipse To: "Tomcat Users List" <users@tomcat.apache.org> Date: Tuesday, February 20, 2018, 4:10 PM 2018-02-20 5:04 GMT+03:00 Karen Goh <karenwo...@yahoo.com.invalid>: > Hi, > > I am writing to this mailing group again because I finally know that Tomcat is the cause of the problem(after writing to an expert) > and thus I hope to sort help for this problem. > > The tomcat version is Apache Tomcat 9.0.4 windows 64. > > Eclipse Oxygen. > Project : Maven dynamic MVC web app with Hibernate, JPA and JSP. > MySQL server 5.7. > > Whenever, I run debug on jsp, after submitting the form, tomcat will just stop and Eclipse does not take over the debugging. > > All the breakpoints are there and perspective is showing debug mode, except the debug buttons are all grey out though. > > I do not know how to make Tomcat not stopping. > > Kindly advise if there is a setting I have missed out such that the above scenario is happening. 1. How exactly do you start Tomcat in debug mode? What instructions and documentation are you following? 2. From log output in your previous thread, http://markmail.org/message/tgymk3r43ox5ggps your command line options are > Jan 21, 2018 11:25:58 PM org.apache.catalina.startup.VersionLoggerListener log INFO: Command line argument: > -agentlib:jdwp=transport=dt_socket,suspend=y,address=localhost:51917 I think that "suspend=y" option is the cause of the behaviour that you are seeing. IIRC, with that option Java stops and waits for a debugger just after JVM launch. I think that in Eclipse you can look into "threads" view, find a running (stopped) "main" thread there and hit a green button to resume it. Hi Konstantin, Can you point me some useful resources where I can learn about setting the Tomcat launch configuration. Currently, I have the below inside my arguments : -Dcatalina.base="C:\Users\Karen.Goh\workspace3\.metadata\.plugins\org.eclipse.wst.server.core\tmp0" -Dcatalina.home="C:\Program Files\Apache\apache-tomcat-9.0.4-windows-x64\apache-tomcat-9.0.4" -Dwtp.deploy="C:\Users\Karen.Goh\workspace3\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps" -Djava.endorsed.dirs="C:\Program Files\Apache\apache-tomcat-9.0.4-windows-x64\apache-tomcat-9.0.4\endorsed" Is this the part that is causing Tomcat to just hang ? Or I have missed out something I am not aware of. Kindly highlight please. Cos I can't proceed with any debugging at all as in run the green button : Please see this attachment at https://imgur.com/OQLyJFb Is there any other changes I need to make since I am also using a maven plug in as below : <dependency> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <version>3.2.0</version> </dependency> It used to be very easy for me to do debugging and now things are so much complicated now. Best regards, Konstantin Kolinko --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
