jdk-24/langtools/test/tools/sjavac/IncCompileUpdateNative.java

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/*
 * @test
 * @summary Verify native files are rewritten
 * @bug 8054689
 * @author Fredrik O
 * @author sogoel (rewrite)
 * @library /tools/lib
 * @modules jdk.compiler/com.sun.tools.javac.api
 *          jdk.compiler/com.sun.tools.javac.file
 *          jdk.compiler/com.sun.tools.javac.main
 *          jdk.compiler/com.sun.tools.sjavac
 * @build Wrapper ToolBox
 * @run main Wrapper IncCompileUpdateNative
 */

import java.util.*;
import java.nio.file.*;

public class IncCompileUpdateNative extends SJavacTester {
    public static void main(String... args) throws Exception {
        IncCompileUpdateNative un = new IncCompileUpdateNative();
        un.test();
    }

    // Remember the previous bin and headers state here.
    Map<String,Long> previous_bin_state;
    Map<String,Long> previous_headers_state;
    ToolBox tb = new ToolBox();

    void test() throws Exception {
        Files.createDirectory(GENSRC);
        Files.createDirectory(BIN);
        Files.createDirectory(HEADERS);

        initialCompile();
        incrementalCompileChangeNative();

        clean(GENSRC, BIN, HEADERS);
    }

    // Update B.java with a new value for the final static annotated with @Native
    // Verify that beta_B.h is rewritten again
    void incrementalCompileChangeNative() throws Exception {
        previous_bin_state = collectState(BIN);
        previous_headers_state = collectState(HEADERS);
        System.out.println("\nIn incrementalCompileChangeNative() ");
        System.out.println("Verify that beta_B.h is rewritten again");
        tb.writeFile(GENSRC.resolve("beta/B.java"),
                       "package beta; import alfa.omega.A; public class B {"+
                       "private int b() { return A.DEFINITION; } "+
                 "@java.lang.annotation.Native final static int alfa = 43; }");

        compile("gensrc", "-d", "bin", "-h", "headers", "-j", "1",
                SERVER_ARG, "--log=debug");
        Map<String,Long> new_bin_state = collectState(BIN);
        verifyNewerFiles(previous_bin_state, new_bin_state,
                         "bin/beta/B.class",
                         "bin/beta/BINT.class",
                         "bin/javac_state");
        previous_bin_state = new_bin_state;

        Map<String,Long> new_headers_state = collectState(HEADERS);
        verifyNewerFiles(previous_headers_state, new_headers_state,
                         "headers/beta_B.h");
        previous_headers_state = new_headers_state;
    }
}