[Solved]-on update maven project it removes the attribute name="org.eclipse.jst.component.dependency" in eclipse in .classpath file-eclipse

actually this is a java version related issue. since this project has is dependent to a java project running in a server with java 6 we have downgraded the project from java 7 to java 6.

i have changed runtime, build path and pom.xml pointing to java 6. but, forgot to change in web.xml header endpoints.

because of that , when updating the project, eclipse got struck up to find that this is a web project.

i.e,

from (java 7)

<web-app xmlns:xsi="http://www.w3.org/2001/xmlschema-instance"
xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xsi:schemalocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
id="webapp_id" 
version="3.1">

to (java 6)

<web-app xmlns:xsi="http://www.w3.org/2001/xmlschema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemalocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
id="webapp_id" 
version="3.0">

after this change, on "maven-> update project" i got the proper project setup.