@JoinTable(name = "tablea_tableb",

            joinColumns = {@JoinColumn(name = "tablea_id", referencedColumnName = "id")},

            inverseJoinColumns = {@JoinColumn(name = "tableb_id", referencedColumnName = "id")},

            foreignKey = @ForeignKey(name = "none", value = ConstraintMode.NO_CONSTRAINT),

            inverseForeignKey = @ForeignKey(name = "none", value = ConstraintMode.NO_CONSTRAINT))