java.lang.NoClassDefFoundError: javax/persistence/Persistence

Question

i\'m using Netbeans 6.8 and build simple Maven web application project.

create Entity and main file for persist Entity [also create persist unit] and use EclipsLink.

Answer 1

for maven quickstart artifacts:-

This problems generally occures when there is no hibernate-jpa-2.0-api jar in classpath so first add this jar in your classpath. if still you are getting excption then go to C:\Users\(system user name)\.m2\repository\org\hibernate; delete folder javax. after that again download jars from pom.xml it will work.

for webapp:--

first make sure hibernate-jpa-2.0-api jar downloaded and it is available in your build path. after that right click on project-->Build Path--->configure build path--->deployment Assembly--->Add--->java build path entries--->select the available jar(hibernate-jpa-2.0-api)--->next--->finish.