原因：implement Comparable<>的时候，把当前类的类型写错了，写成了别的类
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Incompatible types. Required List but 'query' was inferred to T: no instance(s) of type variable(s) exist so that Teacher conforms to List
Inferred type 'S' for type parameter 'S' is not within its bound;
升级libstdc++、libgcc_s.so、libc.so.6
type parameters of T cannot be determined; no unique maximal instance exists for type variable T with upper bounds int,java.lang.Object
%s
ORA-32004: obsolete or deprecated parameter(s) specified for RDBMS instance
Instance "orcl", status UNKNOWN, has 1 handler(s) for this service...
errors exist in required project(s) xxx proceed with launch?
TypeError: unsupported operand type(s) for /: 'map' and 'int'
TypeError: unsupported operand type(s) for +: 'float' and 'str'