test/langtools/tools/javah/T4942232/MissingParamClassTest.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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/*
 * @test
 * @bug 4942232
 * @summary Verifies that javah won't attempt to generate a header file if a
 * native method in a supplied class contains a parameter type whose corresponding
 * class is missing or not in the classpath
 * @library /tools/lib
 * @modules jdk.compiler/com.sun.tools.javac.api
 *          jdk.compiler/com.sun.tools.javac.main
 *          jdk.compiler/com.sun.tools.javah
 * @build toolbox.ToolBox toolbox.JavahTask
 * @run compile MissingParamClassTest.java
 * @clean MissingParamClassException
 * @run main MissingParamClassTest
 * @run compile MissingParamClassTest.java
 * @clean Param
 * @run main MissingParamClassTest
 */

import java.nio.file.Files;
import java.nio.file.Paths;

import toolbox.JavahTask;
import toolbox.Task;
import toolbox.ToolBox;

// Original test: test/tools/javah/MissingParamClassTest.sh
public class MissingParamClassTest {

    public static void main(String[] args) throws Exception {
        ToolBox tb = new ToolBox();

        String out = new JavahTask(tb)
                .classpath(ToolBox.testClasses)
                .classes("ParamClassTest")
                .run(Task.Expect.FAIL)
                .getOutput(Task.OutputKind.DIRECT);

        if (Files.exists(Paths.get("ParamClassTest.h")) || out.isEmpty())
            throw new AssertionError("The only output generated by javah must be an error message");
    }

}

class MissingParamClassException extends Exception {
    public MissingParamClassException() {
        System.out.println("MissingParamClassException constructor called");
    }
}

class ParamClassTest {
    public native void method(Param s);

    public static void main(String args[]) {
    }
}

class Param extends MissingParamClassException {
    Param() {
        System.out.println("Param constructor");
    }
}