$ export JAVA_HOME=/opt/graalvm25 && mvn -Pnative -DskipTests native:compile
[2/8] Performing analysis...  [*****]                                                                   (94.1s @ 2.35GB)
   20,126 types,  29,154 fields, and  91,938 methods found reachable
    7,495 types,   4,032 fields, and  16,651 methods registered for reflection
       68 types,      71 fields, and      58 methods registered for JNI access
        0 downcalls and 0 upcalls registered for foreign access
        4 native libraries: dl, pthread, rt, z
[6/8] Compiling methods...    [**********]                                                              (99.2s @ 2.18GB)
                      30.4s (11.7% of total time) in 1838 GCs | Peak RSS: 4.36GB | CPU load: 1.87
Build artifacts:
 /tmp/sbd-work/spring-boot-demo/graalvm-native-images/target/graalvm-native-images (executable)
Finished generating 'graalvm-native-images' in 4m 19s.
[INFO] BUILD SUCCESS
[INFO] Total time:  04:31 min

$ ls -lh target/graalvm-native-images target/app.jar
-rwxr-xr-x 1 root root 93M Sep 20 10:35 target/graalvm-native-images
-rw-r--r-- 1 root root 22M Sep 20 10:31 target/app.jar