Thanks. I followed this guide:
           
          http://wiki.eclipse.org/EclipseLink/Building
           
           
          But when I run the ant -f antbuild.xml I am
              getting this error:
          org.eclipse.persistence.jpa ---
               [java] [INFO] Compiling 22 source files
              to C:\Users\amosomar\git\eclipselin
          k.runtime\jpa\org.eclipse.persistence.jpa\target\classes
               [java] [INFO]
              -------------------------------------------------------------
          -----------
               [java] [INFO] Reactor Summary:
               [java] [INFO]
               [java] [INFO] EclipseLink Parent
              ................................ SUCCESS [
          1.353s]
               [java] [INFO] EclipseLink Hermes Parser
              ......................... SUCCESS [
          35.315s]
               [java] [INFO] EclipseLink Core
              .................................. SUCCESS [
          1:15.985s]
               [java] [INFO] EclipseLink NoSQL
              Extension ....................... SUCCESS [
          9.204s]
               [java] [INFO] EclipseLink JPA
              ................................... FAILURE [
          7.362s]
               [java] [INFO] EclipseLink MOXy
              .................................. SKIPPED
               [java] [INFO] EclipseLink DBWS
              .................................. SKIPPED
               [java] [INFO] EclipseLink JPA-RS
              ................................ SKIPPED
               [java] [INFO] EclipseLink SDO
              ................................... SKIPPED
               [java] [INFO] EclipseLink DBWS Builder
              .......................... SKIPPED
               [java] [INFO]
              -------------------------------------------------------------
          -----------
               [java] [INFO] BUILD FAILURE
               [java] [INFO]
              -------------------------------------------------------------
          -----------
               [java] [INFO] Total time: 2:34.704s
               [java] [INFO] Finished at: Wed Nov 06
              17:30:08 CST 2013
               [java] [INFO] Final Memory: 47M/136M
               [java] [INFO]
              -------------------------------------------------------------
          -----------
               [java] [ERROR] Failed to execute goal
              org.eclipse.tycho:tycho-compiler-plug
          in:0.18.0:compile (default-compile) on
              project org.eclipse.persistence.jpa: Comp
          ilation failure: Compilation failure:
               [java] [ERROR]
              C:\Users\amosomar\git\eclipselink.runtime\jpa\org.eclipse.pe
          rsistence.jpa\src\org\eclipse\persistence\internal\jpa\metamodel\MetamodelImpl.j
          ava:[91,0]
               [java] [ERROR] private Map<Class,
              EntityTypeImpl<?>> entities;
               [java] [ERROR] ^^^^^^^^^^^^^^
               [java] [ERROR] The type EntityTypeImpl
              is not generic; it cannot be paramet
          erized with arguments <?>
               [java] [ERROR]
              C:\Users\amosomar\git\eclipselink.runtime\jpa\org.eclipse.pe
          rsistence.jpa\src\org\eclipse\persistence\internal\jpa\metamodel\MetamodelImpl.j
          ava:[94,0]
              
              [java] [ERROR] private Map<Class,
              EmbeddableTypeImpl<?>> embeddables;
              
              [java] [ERROR] ^^^^^^^^^^^^^^^^^^
              
            [java] [ERROR] The type EmbeddableTypeImpl is
              not generic; it cannot be par
          ameterized with arguments <?>
               [java] [ERROR]
              C:\Users\amosomar\git\eclipselink.runtime\jpa\org.eclipse.pe
          rsistence.jpa\src\org\eclipse\persistence\internal\jpa\metamodel\MetamodelImpl.j
          ava:[115,0]
               [java] [ERROR]
              this(JpaHelper.getEntityManager(em).getAbstractSession());
               [java] [ERROR] ^^^^^^^^^^^^^^^^^^
               [java] [ERROR] The method
              getAbstractSession() from the type JpaEntityManag
          er refers to the missing type AbstractSession
          ....
           
          Alfredo Osorio
           
          
           
          Alfredo,
                          Hi, if you go to the
              following wiki page there is a list of several procedures
              for getting the source of the EclipseLink API.  These
              links are primarily PDE related for Eclipse developers but
              should help with attaching the proper SVN revision based
              source so you can generate a diff/patch.
           
          http://wiki.eclipse.org/EclipseLink/Source
          I would start with the following for example
              if you need the source for EclipseLink 2.3 running on
              http://cloud.oracle.com
           
          http://www.eclipse.org/eclipselink/downloads/previous_releases.php
           
           
                          Thank you
                          /Michael
           
           
          
           
          Out of curiosity, how do you develop if you
              don't use Eclipse? The thing is that I want to submit a
              patch to a bug so I am trying to set up the environment in
              Eclipse so I can test, debug and build the JAR.
           
          
           
          
            Hello, 
              
              I don't go into Eclipse often, but when I do I usually
              just use "File -> Import -> Existing Projects",
                perhaps it is "existing Eclipse Projects".
                
                
                Eric
           
           
          
            
            
            
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