devtools are NOT automatically disabled when running a fully packaged application.

[kazuki-ma]

According to document, spring-boot-devtools are automatically disabled in fully packaged application. But NOT.

http://docs.spring.io/spring-boot/docs/current/reference/html/using-boot-devtools.html

Developer tools are automatically disabled when running a fully packaged application. If your application is launched using java -jar or if it’s started using a special classloader, then it is considered a “production application”.

Environment

org.springframework.boot:spring-boot-devtools:1.4.1.RELEASE
org.springframework.boot:spring-boot-starter-thymeleaf:1.4.1.RELEASE

Reproduce

I created a sample project.

Please checkout https://github.com/kazuki-ma/devtools-report.
and run ./gradlew clean assemble && java -jar ./build/libs/devtools-report-1.0-SNAPSHOT.jar

This sample contains a single bean annotated @SpringBootApplication and has one method annotated @PostConstruct. In the method, just output spring.thymeleaf.cache's value and exit(0) .

After running assembled jar, we will see

spring.thymeleaf.cache = false

will be logged.
Expected is

spring.thymeleaf.cache = NOT_SET

Other

If I exclude spring-boot-devtools from fat jar by adding

springBoot {
    excludeDevtools = true
}

into build.gradle. spring.thymeleaf.cache = NOT_SET is logged as expected.

[snicoll]

Duplicates #7014

[kazuki-ma]

Thanks! We may need fix documentation of excludeDevtools = true is default.

[snicoll]

It's already done (and it's only the case of 1.5.x)