test/jdk/java/foreign/TestFree.java

/*
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/*
 * @test
 * @bug 8248421
 * @summary SystemCLinker should have a way to free memory allocated outside Java
 * @run testng/othervm --enable-native-access=ALL-UNNAMED TestFree
 */

import java.lang.foreign.MemorySegment;

import static org.testng.Assert.assertEquals;

public class TestFree extends NativeTestHelper {
    public void test() throws Throwable {
        String str = "hello world";
        MemorySegment addr = allocateMemory(str.length() + 1);
        addr.copyFrom(MemorySegment.ofArray(str.getBytes()));
        addr.set(C_CHAR, str.length(), (byte)0);
        assertEquals(str, addr.getString(0));
        freeMemory(addr);
    }
}