cara mengatasi error "Info: updateException [EclipseLink-7251] (Eclipse Persistence Services - 2.6.1.v20150605-31e8258): org.eclipse.persistence.exceptions.ValidationException Exception Description: The attribute [] of class [.] is mapped to a primary key column in the database. Updates are not allowed."
Exception Description: The attribute [] of class [.] is mapped to a primary key column in the database. Updates are not allowed. Info: updateException [EclipseLink-7251] (Eclipse Persistence Services - 2.6.1.v20150605-31e8258): org.eclipse.persistence.exceptions.ValidationException Exception Description: The attribute [] of class [.] is mapped to a primary key column in the database. Updates are not allowed. Error di atas di sebabkan karena update tidak di ijinkan (ini bug eclipselink), solusinya adalah : -buka presistence.xml -tambah kode berikut : <property name="eclipselink.weaving.changetracking" value="true"/> <property name="eclipselink.weaving.lazy" value="true"/> <property name="eclipselink.weaving.eager" value="true"/> <property name="eclipselink.weaving.fetchgroups" value="true"/> <property name="eclipselink.weaving.internal" value="false&
