SEVERE: >>java.lang.ExceptionInInitializerError: null
javax.persistence.PersistenceException: Exception [TOPLINK-28018] (Oracle TopLink Essentials - 2.0 (Build b40-rc (03/21/2007))): oracle.toplink.essentials.exceptions.EntityManagerSetupException
Exception Description: predeploy for PersistenceUnit [dmsPU] failed.
Internal Exception: Exception [TOPLINK-7154] (Oracle TopLink Essentials - 2.0 (Build b40-rc (03/21/2007))): oracle.toplink.essentials.exceptions.ValidationException
Exception Description: The attribute [mPackagepartses] in entity class [class com.adityas.jpa.masters.part.MPart] has a mappedBy value of [part] which does not exist in its owning entity class [class com.adityas.jpa.masters.packageParts.MPackageparts]. If the owning entity class is a @MappedSuperclass, this is invalid, and your attribute should reference the correct subclass.
oracle.toplink.essentials.exceptions.EntityManagerSetupException:
Exception Description: predeploy for PersistenceUnit [dmsPU] failed.
Internal Exception: Exception [TOPLINK-7154] (Oracle TopLink Essentials - 2.0 (Build b40-rc (03/21/2007))): oracle.toplink.essentials.exceptions.ValidationException
Exception Description: The attribute [mPackagepartses] in entity class [class com.adityas.jpa.masters.part.MPart] has a mappedBy value of [part] which does not exist in its owning entity class [class com.adityas.jpa.masters.packageParts.MPackageparts]. If the owning entity class is a @MappedSuperclass, this is invalid, and your attribute should reference the correct subclass.
Local Exception Stack:
Exception [TOPLINK-7154] (Oracle TopLink Essentials - 2.0 (Build b40-rc (03/21/2007))): oracle.toplink.essentials.exceptions.ValidationException
Exception Description: The attribute [mPackagepartses] in entity class [class com.adityas.jpa.masters.part.MPart] has a mappedBy value of [part] which does not exist in its owning entity class [class com.adityas.jpa.masters.packageParts.MPackageparts]. If the owning entity class is a @MappedSuperclass, this is invalid, and your attribute should reference the correct subclass.
at oracle.toplink.essentials.exceptions.ValidationException.noMappedByAttributeFound(ValidationException.java:1118)
at oracle.toplink.essentials.internal.ejb.cmp3.metadata.MetadataValidator.throwNoMappedByAttributeFound(MetadataValidator.java:297)
at oracle.toplink.essentials.internal.ejb.cmp3.metadata.accessors.RelationshipAccessor.getOwningMapping(RelationshipAccessor.java:127)
...