Hibernate error: org.hibernate.MappingException: Could not determine type for: java.util.List

solution: move JPA annotations to getters and remove them from fields
eg (wrong):

@OneToMany
private List foos;
public List getFoos() { return foos; }
public void setFoos(List foos) { this.foos = foos; }

eg (right):

private List foos;
@OneToMany
public List getFoos() { return foos; }
public void setFoos(List foos) { this.foos = foos; }