2019-06-17 19:36:48.134  WARN 7512 --- [nio-8080-exec-3] .w.s.m.s.DefaultHandlerExceptionResolver : Resolved [org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Unexpected character ('-' (code 45)) in numeric value: expected digit (0-9) to follow minus sign, for valid numeric value; nested exception is com.fasterxml.jackson.core.JsonParseException: Unexpected character ('-' (code 45)) in numeric value: expected digit (0-9) to follow minus sign, for valid numeric value
 at [Source: (PushbackInputStream); line: 1, column: 3]]
2019-06-17 19:37:30.649  WARN 7512 --- [nio-8080-exec-4] .w.s.m.s.DefaultHandlerExceptionResolver : Resolved [org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Unexpected character ('-' (code 45)) in numeric value: expected digit (0-9) to follow minus sign, for valid numeric value; nested exception is com.fasterxml.jackson.core.JsonParseException: Unexpected character ('-' (code 45)) in numeric value: expected digit (0-9) to follow minus sign, for valid numeric value
 at [Source: (PushbackInputStream); line: 1, column: 3]]
2019-06-17 19:39:29.094  WARN 7512 --- [nio-8080-exec-5] o.h.engine.jdbc.spi.SqlExceptionHelper   : SQL Error: 1062, SQLState: 23000
2019-06-17 19:39:29.094 ERROR 7512 --- [nio-8080-exec-5] o.h.engine.jdbc.spi.SqlExceptionHelper   : Duplicate entry 'https://thumbs.gfycat.com/SmugInsistentHound-size_restricted.gif' for key 'UK_c9hqboacnbimvuojt2ock0d5k'
2019-06-17 19:39:29.100 ERROR 7512 --- [nio-8080-exec-5] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.dao.DataIntegrityViolationException: could not execute statement; SQL [n/a]; constraint [UK_c9hqboacnbimvuojt2ock0d5k]; nested exception is org.hibernate.exception.ConstraintViolationException: could not execute statement] with root cause

java.sql.SQLIntegrityConstraintViolationException: Duplicate entry 'https://thumbs.gfycat.com/SmugInsistentHound-size_restricted.gif' for key 'UK_c9hqboacnbimvuojt2ock0d5k'