BlueberryMC/NativeUtil

Provides some methods that are possible in JNI, but not possible in Java.

NativeUtil

Provides some methods that are possible in JNI, but not possible in Java (without using Unsafe etc.)

Note

• callTypeMethod and invokeType methods are 30x+ slower than reflection (68.447 ± 30.569 ns/op)
• Method with java.lang.Void parameter type is not supported and will crash the JVM when trying to invoke them
• You need to use BoxedValue class to pass the value of boxed primitive type to method, for example:

  NativeUtil/src/test/java/net/blueberrymc/nativeutil/NativeUtilTest.java

  Lines 40 to 43 in c194dd4

  	Method method2 = YouCannotCreateInstanceOfThisClass.class.getDeclaredMethod("calculate", Integer.class, Integer.class);
  	long method2id = NativeUtil.getMethodId(method2);
  	int i2 = NativeUtil.callInt(method2id, null, new BoxedValue(100000), new BoxedValue(15115));
  	assert i2 == 115115 : i2;

Repository

Maven

<repositories>
    ...
    <repository>
        <id>blueberrymc-repo</id>
        <url>https://repo.blueberrymc.net/repository/maven-public/</url>
    </repository>
</repositories>
<dependencies>
    <dependency>
        <groupId>net.blueberrymc</groupId>
        <artifactId>native-util</artifactId>
        <version>[version]</version>
    </dependency>
</dependencies>

Gradle

repositories {
    maven {
        url "https://repo.blueberrymc.net/repository/maven-public/"
    }
}

dependencies {
    implementation 'net.blueberrymc:native-util:[version]'
}

Gradle (Kotlin)

repositories {
    maven { url = uri("https://repo.blueberrymc.net/repository/maven-public/") }
}

dependencies {
    implementation("net.blueberrymc:native-util:[version]")
}