'java.lang.LinkageError: loader constraint violation:' error occurred when restarting Springboot project












1















I have a simple Springboot project



I made settings in my IntelliJ IDE:




  1. Enable compiler.automake.allow.when.app.running checkbox in Registry

  2. Enable Build project automatically in Compiler settings.


Not always but very often when I change my code and save it, I have error:



2018-11-23 05:25:10.544 ERROR 344 --- [nio-8080-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path  threw exception [Handler dispatch failed; nested exception is java.lang.LinkageError: loader constraint violation: when resolving method "ru.krivochenko.demo.user.UserService.getNewUser()Lru/krivochenko/demo/user/User;" the class loader org.springframework.boot.devtools.restart.classloader.RestartClassLoader @6ce6e730 (instance of org.springframework.boot.devtools.restart.classloader.RestartClassLoader, child of 'app' jdk.internal.loader.ClassLoaders$AppClassLoader) of the current class, ru/krivochenko/demo/MainController, and the class loader 'app' (instance of jdk.internal.loader.ClassLoaders$AppClassLoader) for the method's defining class, ru/krivochenko/demo/user/UserService, have different Class objects for the type ru/krivochenko/demo/user/User used in the signature] with root cause


Full stack trace



Thanks for help!










share|improve this question

























  • I download your code and run,it works fine

    – John Joe
    Nov 23 '18 at 2:55











  • Try to change it several times

    – Sergey Krivochenko
    Nov 23 '18 at 3:05











  • Once you hit the error, copy the code and paste here

    – John Joe
    Nov 23 '18 at 3:33











  • I have already attached full stack trace of error: gist.github.com/krivochenko/bda326f24ffd4a237cc1ecfa11265095

    – Sergey Krivochenko
    Nov 23 '18 at 3:35











  • Is the code you provided is where the error happened ?

    – John Joe
    Nov 23 '18 at 3:40
















1















I have a simple Springboot project



I made settings in my IntelliJ IDE:




  1. Enable compiler.automake.allow.when.app.running checkbox in Registry

  2. Enable Build project automatically in Compiler settings.


Not always but very often when I change my code and save it, I have error:



2018-11-23 05:25:10.544 ERROR 344 --- [nio-8080-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path  threw exception [Handler dispatch failed; nested exception is java.lang.LinkageError: loader constraint violation: when resolving method "ru.krivochenko.demo.user.UserService.getNewUser()Lru/krivochenko/demo/user/User;" the class loader org.springframework.boot.devtools.restart.classloader.RestartClassLoader @6ce6e730 (instance of org.springframework.boot.devtools.restart.classloader.RestartClassLoader, child of 'app' jdk.internal.loader.ClassLoaders$AppClassLoader) of the current class, ru/krivochenko/demo/MainController, and the class loader 'app' (instance of jdk.internal.loader.ClassLoaders$AppClassLoader) for the method's defining class, ru/krivochenko/demo/user/UserService, have different Class objects for the type ru/krivochenko/demo/user/User used in the signature] with root cause


Full stack trace



Thanks for help!










share|improve this question

























  • I download your code and run,it works fine

    – John Joe
    Nov 23 '18 at 2:55











  • Try to change it several times

    – Sergey Krivochenko
    Nov 23 '18 at 3:05











  • Once you hit the error, copy the code and paste here

    – John Joe
    Nov 23 '18 at 3:33











  • I have already attached full stack trace of error: gist.github.com/krivochenko/bda326f24ffd4a237cc1ecfa11265095

    – Sergey Krivochenko
    Nov 23 '18 at 3:35











  • Is the code you provided is where the error happened ?

    – John Joe
    Nov 23 '18 at 3:40














1












1








1


1






I have a simple Springboot project



I made settings in my IntelliJ IDE:




  1. Enable compiler.automake.allow.when.app.running checkbox in Registry

  2. Enable Build project automatically in Compiler settings.


Not always but very often when I change my code and save it, I have error:



2018-11-23 05:25:10.544 ERROR 344 --- [nio-8080-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path  threw exception [Handler dispatch failed; nested exception is java.lang.LinkageError: loader constraint violation: when resolving method "ru.krivochenko.demo.user.UserService.getNewUser()Lru/krivochenko/demo/user/User;" the class loader org.springframework.boot.devtools.restart.classloader.RestartClassLoader @6ce6e730 (instance of org.springframework.boot.devtools.restart.classloader.RestartClassLoader, child of 'app' jdk.internal.loader.ClassLoaders$AppClassLoader) of the current class, ru/krivochenko/demo/MainController, and the class loader 'app' (instance of jdk.internal.loader.ClassLoaders$AppClassLoader) for the method's defining class, ru/krivochenko/demo/user/UserService, have different Class objects for the type ru/krivochenko/demo/user/User used in the signature] with root cause


Full stack trace



Thanks for help!










share|improve this question
















I have a simple Springboot project



I made settings in my IntelliJ IDE:




  1. Enable compiler.automake.allow.when.app.running checkbox in Registry

  2. Enable Build project automatically in Compiler settings.


Not always but very often when I change my code and save it, I have error:



2018-11-23 05:25:10.544 ERROR 344 --- [nio-8080-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path  threw exception [Handler dispatch failed; nested exception is java.lang.LinkageError: loader constraint violation: when resolving method "ru.krivochenko.demo.user.UserService.getNewUser()Lru/krivochenko/demo/user/User;" the class loader org.springframework.boot.devtools.restart.classloader.RestartClassLoader @6ce6e730 (instance of org.springframework.boot.devtools.restart.classloader.RestartClassLoader, child of 'app' jdk.internal.loader.ClassLoaders$AppClassLoader) of the current class, ru/krivochenko/demo/MainController, and the class loader 'app' (instance of jdk.internal.loader.ClassLoaders$AppClassLoader) for the method's defining class, ru/krivochenko/demo/user/UserService, have different Class objects for the type ru/krivochenko/demo/user/User used in the signature] with root cause


Full stack trace



Thanks for help!







java spring spring-boot






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edited Nov 30 '18 at 18:19









Rajkumar Natarajan

1,45411537




1,45411537










asked Nov 23 '18 at 2:31









Sergey KrivochenkoSergey Krivochenko

80111




80111













  • I download your code and run,it works fine

    – John Joe
    Nov 23 '18 at 2:55











  • Try to change it several times

    – Sergey Krivochenko
    Nov 23 '18 at 3:05











  • Once you hit the error, copy the code and paste here

    – John Joe
    Nov 23 '18 at 3:33











  • I have already attached full stack trace of error: gist.github.com/krivochenko/bda326f24ffd4a237cc1ecfa11265095

    – Sergey Krivochenko
    Nov 23 '18 at 3:35











  • Is the code you provided is where the error happened ?

    – John Joe
    Nov 23 '18 at 3:40



















  • I download your code and run,it works fine

    – John Joe
    Nov 23 '18 at 2:55











  • Try to change it several times

    – Sergey Krivochenko
    Nov 23 '18 at 3:05











  • Once you hit the error, copy the code and paste here

    – John Joe
    Nov 23 '18 at 3:33











  • I have already attached full stack trace of error: gist.github.com/krivochenko/bda326f24ffd4a237cc1ecfa11265095

    – Sergey Krivochenko
    Nov 23 '18 at 3:35











  • Is the code you provided is where the error happened ?

    – John Joe
    Nov 23 '18 at 3:40

















I download your code and run,it works fine

– John Joe
Nov 23 '18 at 2:55





I download your code and run,it works fine

– John Joe
Nov 23 '18 at 2:55













Try to change it several times

– Sergey Krivochenko
Nov 23 '18 at 3:05





Try to change it several times

– Sergey Krivochenko
Nov 23 '18 at 3:05













Once you hit the error, copy the code and paste here

– John Joe
Nov 23 '18 at 3:33





Once you hit the error, copy the code and paste here

– John Joe
Nov 23 '18 at 3:33













I have already attached full stack trace of error: gist.github.com/krivochenko/bda326f24ffd4a237cc1ecfa11265095

– Sergey Krivochenko
Nov 23 '18 at 3:35





I have already attached full stack trace of error: gist.github.com/krivochenko/bda326f24ffd4a237cc1ecfa11265095

– Sergey Krivochenko
Nov 23 '18 at 3:35













Is the code you provided is where the error happened ?

– John Joe
Nov 23 '18 at 3:40





Is the code you provided is where the error happened ?

– John Joe
Nov 23 '18 at 3:40












1 Answer
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For some reason after rebuild changed class there is a time-gap before it really exists.
I played a little bit with values in application.properties I found result working for me:




spring.devtools.restart.poll-interval=3000
spring.devtools.restart.quiet-period=2999






share|improve this answer























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    1 Answer
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    active

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    1 Answer
    1






    active

    oldest

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    active

    oldest

    votes






    active

    oldest

    votes









    1














    For some reason after rebuild changed class there is a time-gap before it really exists.
    I played a little bit with values in application.properties I found result working for me:




    spring.devtools.restart.poll-interval=3000
    spring.devtools.restart.quiet-period=2999






    share|improve this answer




























      1














      For some reason after rebuild changed class there is a time-gap before it really exists.
      I played a little bit with values in application.properties I found result working for me:




      spring.devtools.restart.poll-interval=3000
      spring.devtools.restart.quiet-period=2999






      share|improve this answer


























        1












        1








        1







        For some reason after rebuild changed class there is a time-gap before it really exists.
        I played a little bit with values in application.properties I found result working for me:




        spring.devtools.restart.poll-interval=3000
        spring.devtools.restart.quiet-period=2999






        share|improve this answer













        For some reason after rebuild changed class there is a time-gap before it really exists.
        I played a little bit with values in application.properties I found result working for me:




        spring.devtools.restart.poll-interval=3000
        spring.devtools.restart.quiet-period=2999







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 30 '18 at 16:27









        Sergey KrivochenkoSergey Krivochenko

        80111




        80111






























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