GraalVM Commands

Published: 2019-01-25, Updated: 2023-03-15

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Graalvm

Requisitos de instalação no Windows

Instale conforme o link
Abrir o prompt especifico do visual studio no menu iniciar procurando pelo comando native tools

Configurar no bash do git (ainda não deu certo)

Configure o ~/.bashrc com uma variável de ambiente parecida com a abaixo, você pode pegar o valor pra monta-la procurando no menu iniciar pelo comando native tools e depois de abri-lo rodando echo %PATH%

export PATH="${PATH}:/g/Program Files (x86)/Microsoft Visual Studio/2019/BuildTools/VC/Tools/MSVC/14.29.30133/bin/HostX64/x64:/g/Program Files (x86)/Microsoft Visual Studio/2019/BuildTools/Common7/IDE/VC/VCPackages:/g/Program Files (x86)/Microsoft Visual Studio/2019/BuildTools/Common7/IDE/CommonExtensions/Microsoft/TestWindow:/g/Program Files (x86)/Microsoft Visual Studio/2019/BuildTools/Common7/IDE/CommonExtensions/Microsoft/TeamFoundation/Team Explorer:/g/Program Files (x86)/Microsoft Visual Studio/2019/BuildTools/MSBuild/Current/bin/Roslyn:/g/Program Files (x86)/Microsoft Visual Studio/2019/BuildTools/Common7/Tools/devinit:C/Program Files (x86)/Windows Kits/10/bin/10.0.19041.0/x64:C/Program Files (x86)/Windows Kits/10/bin/x64:/g/Program Files (x86)/Microsoft Visual Studio/2019/BuildTools//MSBuild/Current/Bin:C/Windows/Microsoft.NET/Framework64/v4.0.30319:/g/Program Files (x86)/Microsoft Visual Studio/2019/BuildTools/Common7/IDE/:/g/Program Files (x86)/Microsoft Visual Studio/2019/BuildTools/Common7/Tools/:C/Program Files/ImageMagick-7.0.10-Q16:C/Windows/system32:C/Windows:C/Windows/System32/Wbem:C/Windows/System32/WindowsPowerShell/v1.0/:C/Windows/System32/OpenSSH/:C/Program Files (x86)/NVIDIA Corporation/PhysX/Common:C/Program Files/Git/cmd:C/WINDOWS/system32:C/WINDOWS:C/WINDOWS/System32/Wbem:C/WINDOWS/System32/WindowsPowerShell/v1.0/:C/WINDOWS/System32/OpenSSH/:C/Users/Typer/Downloads/Binaries-LuaDist-batteries-0.9.8-Windows-x86/bin:/g/TDM-GCC-64/bin::C/Program Files/Docker/Docker/resources/bin:/g/Program Files (x86)/Bluetooth Command Line Tools/bin:C/Users/Typer/AppData/Local/Microsoft/WindowsApps:C/Users/Typer/Downloads/Binaries-LuaDist-batteries-0.9.8-Windows-x86//bin:C/Users/Typer/.jdks/adopt-openjdk-11.0.7/bin::/g/Program Files (x86)/Microsoft Visual Studio/2019/BuildTools/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/bin:/g/Program Files (x86)/Microsoft Visual Studio/2019/BuildTools/Common7/IDE/CommonExtensions/Microsoft/CMake/Ninja"

Substituindo clases

Exemplos
- [1]
- [2]
- [3]
- [4]

@TargetClass(className = "org.apache.kafka.common.utils.Crc32C$Java9ChecksumFactory")
@Substitute
final class Java9ChecksumFactory {
  @Substitute
  public Checksum create() {
    return new CRC32();
  }
}

[Entendimento das properties][]

o comando abaixo vai passar o valor para as classes em tempo de build, se a classe for inicializada em tempo de build então a sua variável estática que tentar acessar a property vai ficar com esse valor preenchido, ja as variaveis de instancia que tentarem acessar essa property soh quuando o binario for iniciado, nao vao achar nada....

TL;DR se quiser prefixar uma property na native-image, crie um valor default dentro dela assim como no java ou inicialize a classe em build time e recupere o valor quando iniciar o binario.

$ native-image -Dk=v

Exemplo para compilar um jar

Ex1: binario padrão

native-image --no-server --no-fallback -H:Class=com.mageddo.jdbi.JdbiMain -cp ./build/libs/jdbi-all.jar

Ex2: Quando o jar já tem o main class definido

$ native-image --no-server --no-fallback --target=linux-amd64 -jar helloworld.jar ./build/helloworld

Libs suportadas

Okhttp

A versão 4+ não é suportada por um bug no kotlin
As versões 3.x são suportadas
A partir da graalvm 19.3 o SSL parou de funcionar e então o okhttp também parou, isso aberto

Configurar proprio logger

class ReflectionClasses implements Feature {
	@Override
	public void duringSetup(DuringSetupAccess access) {
		ImageSingletons.add(LogHandler.class, new NopLogHanler());
	}
}

Reflection

Opções de configuração de reflection e da graalvm

native-image --expert-options

Configurar reflections e argumentos da graalvm via META-INF

src/main/resources/META-INF/native-image/io.netty/transport/native-image.properties

Args = -H:ReflectionConfigurationResources=${.}/reflection-config.json

src/main/resources/META-INF/native-image/io.netty/transport/reflection-config.json

[
  {
      "name": "io.netty.channel.socket.nio.NioServerSocketChannel",
      "methods": [
        { "name": "<init>", "parameterTypes": [] }
      ]
  },
  {
      "name": "sun.nio.ch.SelectorImpl",
      "fields": [
        { "name": "selectedKeys",  "allowUnsafeAccess" : true},
        { "name": "publicSelectedKeys",  "allowUnsafeAccess" : true}
      ]
  },
	{
		"name": "java.sql.Connection",
		"allDeclaredFields" : true
	},
	{
		"name": "org.springframework.transaction.TransactionDefinition",
		"allDeclaredFields" : true
	},
	{
		"name": "java.sql.Statement[]",
		"allPublicConstructors": true,
		"allDeclaredConstructors": true
	}
]

Gerar reflection usando o agent da gralvm

java -agentlib:native-image-agent=config-output-dir=build/

java -agentlib:native-image-agent=config-merge-dir=/tmp/reflection -cp ./build/libs/jdbi-all.jar com.mageddo.jdbi.JdbiMain

Examples

Spring Fu + Transactional + Thymeleaf

Utils

Saber se está rodando em uma NativeImage ou não

ImageInfo.inImageRuntimeCode()

Pegar o path do exectuável que está executando

// /etc/exec.exe
ProcessProperties.getExecutableName()

// /etc
Paths.get(ProcessProperties.getExecutableName()).getParent()

Issues relacionados

ref 13
native-image Failed to compile spring-boot project to native image
Spring suporte a graalvm
- Initial GraalVM native images
- ref 16

Setar o tamanho da Heap em build time

Para que valha em runtime nao precise passar como argumento na hora de rodar o programa

# Build a native image with the default heap settings and override the heap settings at run time
native-image HelloWorld
./helloworld -Xms2m -Xmx10m -Xmn1m

# Build a native image and "bake" heap settings into the image. The specified values will be used at run time
native-image -R:MinHeapSize=2m -R:MaxHeapSize=10m -R:MaxNewSize=1m HelloWorld
./helloworld

Instalar uma native image na mão / Cross compilation

Ainda não funciona ele n~ão sabe compilar de forma cross

gu -u install "https://github.com/graalvm/graalvm-ce-builds/releases/download/vm-22.3.1/llvm-installable-svm-java19-windows-amd64-22.3.1.jar"

https://www.graalvm.org/22.0/reference-manual/graalvm-updater/#manual-installation

https://github.com/oracle/graal/issues/1446 https://github.com/oracle/graal/issues/407

Instalar Native Image e buildar binario no windows

https://www.graalvm.org/latest/reference-manual/native-image/

Buildar o mais rápido possivel para poder validar problemas

$ native-image --expert-options

-H:Optimize="2" Control native-image code optimizations: b - optimize for shortest build time, 0 - no optimizations, 1 - basic
  optimizations, 2 - aggressive optimizations.

Proxy de interface do java

native-image.properties

Args=-H:DynamicProxyConfigurationResources=${.}/proxy-config.json \

proxy-config.json

[
  { "interfaces": [ "com.sun.jna.platform.win32.Advapi32" ] }
]

Nos meus testes não mudou muita coisa caiu de 8:30 pra 7:50

Keywords

graalvm commands, graal commands

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