Getting started with maven :

REF : Maven docs

Error connecting to your instance: Connection timed out

Solution : Check your security group of the instance created which will allows inbound traffic from your public IP address on the proper port.

REF : aws docs

amazon ec2 server refused our key

Solution

1. Provide the username

ex : user-name@public-DNS.com

Genral user : root or ec2-user.

REF : awazon docs

Jersey :
severe the runtimeexception could not be mapped to a response re-throwing to the http container

REF url : Stackoverflow

Maven Build Lifecycle 

• validate - validate the project is correct and all necessary information is available
• compile - compile the source code of the project
• test - test the compiled source code using a suitable unit testing framework. These tests should not require the code be packaged or deployed
• package - take the compiled code and package it in its distributable format, such as a JAR.
• integration-test - process and deploy the package if necessary into an environment where integration tests can be run
• verify - run any checks to verify the package is valid and meets quality criteria
• install - install the package into the local repository, for use as a dependency in other projects locally
• deploy - done in an integration or release environment, copies the final package to the remote repository for sharing with other developers and projects.

Ref : maven build URL

Java was started but returned exit code=13. while starting the eclipse.

This is happen because of you might have updated addon/plugin and might have installed a older version of java which will set path to the older version.

So here are the solution what i have tried.

1.uninstall the older version of  java.
2. set the latest java path to the environment variable.
3. Restart the eclipse. 

Error :
Cannot find class [] for bean with name defined in ServletContext resource [/WEB-INF/spring/applicationContext.xml]

Hi this is the common error when working with maven peoject.

solution :

step 1. go to command prompt and do maven clean update ex : mvn clean install step 2 : reload the project in eclipse