=================
IMPORTANT
THIS PROJECT HAS MOVED TO https://github.com/spring-projects-experimental/spring-graal-feature
MASTER BRANCH AT THAT LOCATION SUPPORTS BOOT 2.2.0.M5 WITH GRAAL 19.2.0
=================
There is a Graal_19_1_0 branch that is a work-in-progress for supporting Graal 19.1 - when it is behaving it will become master.
Pass on the classpath to native-image and it will process your Spring Boot application
as the native image is built:
native-image \
-Dorg.springframework.boot.logging.LoggingSystem=none \
-Dio.netty.noUnsafe=true \
--no-server -H:Name=clr \
-H:+ReportExceptionStackTraces \
--allow-incomplete-classpath \
--report-unsupported-elements-at-runtime \
-cp $CP com.example.commandlinerunner.CommandlinerunnerApplication
Latest notes: 17-May-2019:
- now works with Graal 19 release
- now no longer 'patches' spring jars (using a different workaround for Graal #1196 issue)
- now computing much more based on spring.factories, not hard coded just for one app
- added more samples using the same graal feature for both
- added sample showing maven native-image invocation
[clr:36189] classlist: 3,381.06 ms
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[clr:36189] (cap): 1,084.62 ms
SBG: reflection registering #144 entries
SBG: Proxy registration: #3 proxies
[org.springframework.boot.context.properties.ConfigurationProperties, org.springframework.core.annotation.SynthesizedAnnotation]
[org.springframework.stereotype.Component]
[org.springframework.boot.context.properties.ConfigurationProperties]
[clr:36189] setup: 2,225.69 ms
SBG: adding resources, patterns: #15
SBG: delaying initialization of #10 classes
[clr:36189] (typeflow): 12,400.81 ms
[clr:36189] (objects): 14,827.05 ms
[clr:36189] (features): 1,069.89 ms
[clr:36189] analysis: 29,255.59 ms
[clr:36189] universe: 847.85 ms
[clr:36189] (parse): 1,924.93 ms
[clr:36189] (inline): 4,442.09 ms
[clr:36189] (compile): 22,225.32 ms
[clr:36189] compile: 30,564.01 ms
[clr:36189] image: 3,765.08 ms
[clr:36189] write: 1,005.77 ms
[clr:36189] [total]: 71,211.78 ms
The samples/demo project is a webflux based app using annotation based configuration for the controllers:
cd samples/demo
./compile.sh
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot ::
2019-05-11 22:44:56.722 INFO 17672 --- [ main] com.example.demo.DemoApplication :
Starting DemoApplication on Andys-MacBook-Pro-2018.local with PID 17672 (started by aclement in /Users/aclement/gits/spring-boot-graal-feature/samples/demo)
2019-05-11 22:44:56.722 INFO 17672 --- [ main] com.example.demo.DemoApplication :
No active profile set, falling back to default profiles: default
2019-05-11 22:44:56.770 INFO 17672 --- [ main] o.s.b.web.embedded.netty.NettyWebServer :
Netty started on port(s): 8080
2019-05-11 22:44:56.770 INFO 17672 --- [ main] com.example.demo.DemoApplication :
Started DemoApplication in 0.062 seconds (JVM running for 0.063)
The compile.sh script:
- mvn compiles the project
- unpacks the boot packaged jar
- runs native-image to compile the app
- runs the compiled app
TODO
- tidy it all up!
- review where the split would be framework vs boot
- use the netty feature rather than having the netty config in here
- generate more of what is in the json files rather than hard coding it
- try other workarounds for the graal issue