Java source files are not getting compiled after making updation in source code on an eclipse project

Question

I've tried a lot but fail to get latest compiled .class files for the source code after making some updation. The project is giving response same as in older source file. The updation on JSP files is getting reflect instantly but not in case of Java files.

J2EE project
Eclipse Juno
jetty-6.1.x

Jul 15, 2013 1:04:57 PM com.google.apphosting.utils.config.AppEngineWebXmlReader      readAppEngineWebXml
INFO: Successfully processed C:\Users\Atul Dwivedi\git\careeryantra\war\WEB-INF/appengine-web.xml
Jul 15, 2013 1:04:58 PM com.google.apphosting.utils.config.AbstractConfigXmlReader readConfigXml
INFO: Successfully processed C:\Users\Atul Dwivedi\git\careeryantra\war\WEB-INF/web.xml
Jul 15, 2013 1:04:58 PM com.google.appengine.tools.development.SystemPropertiesManager setSystemProperties
INFO: Overwriting system property key 'java.util.logging.config.file', valu'C:\eclipse\plugins\com.google.appengine.eclipse.sdkbundle_1.8.1.1\appengine-java-sdk-  1.8.1.1\config\sdk\logging.properties' with value 'WEB-INF/logging.properties' from '    C:\Users\Atul Dwivedi\git\careeryantra\war\WEB-INF\appengine-web.xml'
Jul 15, 2013 1:04:58 PM com.google.apphosting.utils.jetty.JettyLogger info
INFO: Logging to JettyLogger(null) via com.google.apphosting.utils.jetty.JettyLogger
Jul 15, 2013 7:34:59 AM com.google.apphosting.utils.jetty.JettyLogger info
INFO: jetty-6.1.x
Jul 15, 2013 7:35:01 AM com.google.apphosting.utils.jetty.JettyLogger info
INFO: Started SelectChannelConnector@127.0.0.1:8888
Jul 15, 2013 7:35:01 AM com.google.appengine.tools.development.AbstractServer startup
INFO: Server default is running at http://localhost:8888/
Jul 15, 2013 7:35:01 AM com.google.appengine.tools.development.AbstractServer startup
INFO: The admin console is running at http://localhost:8888/_ah/admin
Jul 15, 2013 1:05:01 PM com.google.appengine.tools.development.DevAppServerImpl start
INFO: Dev App Server is now running

Everything is fine with older java file but after making changes, It seems that project is running on the basis of older .class file.

Answer 1

Please go to project in the menu and select clean. Then select the project you wish clean to consider.

Answer 2

Check if you have checked "Build Automatically" checkbox in Project menu: