Native image compilation, reflection configuration, and build optimization.
# Maven with Spring Boot
./mvnw -Pnative native:compile
# Maven with Quarkus
./mvnw package -Dnative
# Gradle
./gradlew nativeCompile
// Quarkus - register for reflection
@RegisterForReflection
public class User {
private String name;
private String email;
}
// Spring Boot - hints
@Configuration
@ImportRuntimeHints(MyRuntimeHints.class)
public class NativeConfig {}
public class MyRuntimeHints implements RuntimeHintsRegistrar {
@Override
public void registerHints(RuntimeHints hints, ClassLoader classLoader) {
hints.reflection().registerType(User.class,
MemberCategory.PUBLIC_FIELDS,
MemberCategory.INVOKE_PUBLIC_CONSTRUCTORS,
MemberCategory.INVOKE_PUBLIC_METHODS);
}
}
src/main/resources/META-INF/native-image/
├── reflect-config.json
├── resource-config.json
├── serialization-config.json
└── native-image.properties
// reflect-config.json
[
{
"name": "com.example.User",
"allDeclaredConstructors": true,
"allPublicMethods": true,
"allDeclaredFields": true
}
]
// resource-config.json
{
"resources": {
"includes": [
{"pattern": "application\\.yml"},
{"pattern": "db/migration/.*"}
]
}
}
// Use build-time initialization
@BuildTimeInit
public class Constants {
public static final Map<String, String> CONFIG = loadConfig();
}
// Avoid runtime class loading
// DON'T: Class.forName("com.example.MyClass")
// DO: Reference classes directly
// Use static configuration
// Avoid dynamic proxies when possible