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聽at org.hibernate.exception.ErrorCodeConverter.handledNonSpecificException(ErrorCodeConverter.java:92)
聽at org.hibernate.exception.ErrorCodeConverter.convert(ErrorCodeConverter.java:80)
聽at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
聽at org.hibernate.loader.Loader.doList(Loader.java:1596)
聽at org.hibernate.loader.Loader.list(Loader.java:1577)
聽at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:395)
聽at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:271)
聽at org.hibernate.impl.SessionImpl.list(SessionImpl.java:844)
聽at org.hibernate.impl.QueryImpl.list(QueryImpl.java:74)
聽at com.lk.yk.hibernate.operation.TypeOperation.SelectAll(TypeOperation.java:55)
聽at com.lk.yk.hibernate.operation.TypeOperation.main(TypeOperation.java:84)
Caused by: com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception:
** BEGIN NESTED EXCEPTION **
java.io.EOFException
STACKTRACE:
java.io.EOFException
聽at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:1913)
聽at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2304)
聽at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2803)
聽at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1573)
聽at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1665)
聽at com.mysql.jdbc.Connection.execSQL(Connection.java:3176)
聽at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1153)
聽at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1266)
聽at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:120)
聽at org.hibernate.loader.Loader.getResultSet(Loader.java:1272)
聽at org.hibernate.loader.Loader.doQuery(Loader.java:391)
聽at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:218)
聽at org.hibernate.loader.Loader.doList(Loader.java:1593)
聽at org.hibernate.loader.Loader.list(Loader.java:1577)
聽at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:395)
聽at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:271)
聽at org.hibernate.impl.SessionImpl.list(SessionImpl.java:844)
聽at org.hibernate.impl.QueryImpl.list(QueryImpl.java:74)
聽at com.lk.yk.hibernate.operation.TypeOperation.SelectAll(TypeOperation.java:55)
聽at com.lk.yk.hibernate.operation.TypeOperation.main(TypeOperation.java:84)
** END NESTED EXCEPTION **
Last packet sent to the server was 47 ms ago.
聽at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2515)
聽at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2803)
聽at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1573)
聽at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1665)
聽at com.mysql.jdbc.Connection.execSQL(Connection.java:3176)
聽at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1153)
聽at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1266)
聽at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:120)
聽at org.hibernate.loader.Loader.getResultSet(Loader.java:1272)
聽at org.hibernate.loader.Loader.doQuery(Loader.java:391)
聽at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:218)
聽at org.hibernate.loader.Loader.doList(Loader.java:1593)
聽... 7 more
Exception in thread "main" java.lang.NullPointerException
聽at com.lk.yk.hibernate.operation.TypeOperation.main(TypeOperation.java:84)
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