Application restarts twice on reload when both a class and property files changed

[arikanorh]

This might be a Intellij specific problem but;

1. Include dev tools in pom.xml

2. Set On Update Action as "Update classes and resources"
   

3. Run application

4. Change a property file and a class file

5. Hit "Update"
   

Application restarts then restarts again

`2021-02-13 21:40:08.127 DEBUG 8796 --- [ restartedMain] o.s.boot.devtools.restart.Restarter : Creating new Restarter for thread Thread[main,5,main]
2021-02-13 21:40:08.127 DEBUG 8796 --- [ restartedMain] o.s.boot.devtools.restart.Restarter : Immediately restarting application
2021-02-13 21:40:08.128 DEBUG 8796 --- [ restartedMain] o.s.boot.devtools.restart.Restarter : Created RestartClassLoader org.springframework.boot.devtools.restart.classloader.RestartClassLoader@4609f98d
2021-02-13 21:40:08.128 DEBUG 8796 --- [ restartedMain] o.s.boot.devtools.restart.Restarter : Starting application com.vebora.starttuptest.StarttuptestApplication with URLs [file:/C:/Users/Qualist-Orhan/workspace-orhan/starttuptest/target/classes/]
2021-02-13 21:40:23.537 DEBUG 8796 --- [ File Watcher] o.s.boot.devtools.restart.Restarter : Restarting application
2021-02-13 21:40:23.540 DEBUG 8796 --- [ Thread-6] o.s.boot.devtools.restart.Restarter : Stopping application
2021-02-13 21:40:23.541 DEBUG 8796 --- [ Thread-6] ConfigServletWebServerApplicationContext : Closing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@706581df, started on Sat Feb 13 21:40:05 EET 2021
2021-02-13 21:40:24.274 INFO 8796 --- [ Thread-6] o.s.s.c.ThreadPoolTaskScheduler : Shutting down ExecutorService 'taskScheduler'
2021-02-13 21:40:24.278 INFO 8796 --- [ Thread-6] o.s.s.concurrent.ThreadPoolTaskExecutor : Shutting down ExecutorService 'applicationTaskExecutor'
2021-02-13 21:40:24.389 DEBUG 8796 --- [ Thread-6] o.s.boot.devtools.restart.Restarter : Created RestartClassLoader org.springframework.boot.devtools.restart.classloader.RestartClassLoader@372ee301
2021-02-13 21:40:24.389 DEBUG 8796 --- [ Thread-6] o.s.boot.devtools.restart.Restarter : Starting application

....

2021-02-13 21:40:25.078 INFO 8796 --- [ restartedMain] .ConditionEvaluationDeltaLoggingListener : Condition evaluation unchanged

================> THEN SECOND RESTART

2021-02-13 21:40:26.482 DEBUG 8796 --- [ File Watcher] o.s.boot.devtools.restart.Restarter : Restarting application
2021-02-13 21:40:26.483 DEBUG 8796 --- [ Thread-9] o.s.boot.devtools.restart.Restarter : Stopping application
2021-02-13 21:40:26.483 DEBUG 8796 --- [ Thread-9] ConfigServletWebServerApplicationContext : Closing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@1d528d3b, started on Sat Feb 13 21:40:24 EET 2021
2021-02-13 21:40:27.417 INFO 8796 --- [ Thread-9] o.s.s.c.ThreadPoolTaskScheduler : Shutting down ExecutorService 'taskScheduler'
2021-02-13 21:40:27.417 INFO 8796 --- [ Thread-9] o.s.s.concurrent.ThreadPoolTaskExecutor : Shutting down ExecutorService 'applicationTaskExecutor'
2021-02-13 21:40:27.678 DEBUG 8796 --- [ Thread-9] o.s.boot.devtools.restart.Restarter : Created RestartClassLoader org.springframework.boot.devtools.restart.classloader.RestartClassLoader@7564a821
2021-02-13 21:40:27.679 DEBUG 8796 --- [ Thread-9] o.s.boot.devtools.restart.Restarter : Starting application

.....

2021-02-13 21:40:28.156 INFO 8796 --- [ restartedMain] c.v.s.StarttuptestApplication : Started StarttuptestApplication in 0.461 seconds (JVM running for 25.192)
App started :2021-02-13T21:40:28.157
2021-02-13 21:40:28.158 INFO 8796 --- [ restartedMain] .ConditionEvaluationDeltaLoggingListener : Condition evaluation unchanged`

[wilkinsona]

This looks very similar to #12760. Please try configuring a longer quiet period using spring.devtools.restart.quiet-period. The default is 400ms and I suspect there's a more than 400ms gap between resource processing completing and compilation writing new class files.

[arikanorh]

When i set it to be 1000 then application doesnt start and give error

Caused by: java.lang.IllegalArgumentException: PollInterval must be greater than QuietPeriod

[snicoll]

@arikanorh thanks for trying. The exception message states that poll interval must be higher than the quiet period. Poll interval is 1sec by default so you may have to increase it according to the exception message. The documentation can be helpful as well.

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