langtools/test/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/javac/lib
 * @build ToolBox
 * @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 java.util.ArrayList;
import java.util.List;

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

    public static void main(String[] args) throws Exception {
        //first steps done now by jtreg
//"${TESTJAVA}${FS}bin${FS}javac" ${TESTTOOLVMOPTS} -d . "${TESTSRC}${FS}ParamClassTest.java" "${TESTSRC}${FS}MissingParamClassException.java"
//rm -f MissingParamClassException.class

//"${TESTJAVA}${FS}bin${FS}javah" ${TESTTOOLVMOPTS} ParamClassTest 2>${TMP1}
        List<String> errOutput = new ArrayList<>();
        ToolBox.JavaToolArgs javahParams =
            new ToolBox.JavaToolArgs(ToolBox.Expect.FAIL)
            .setAllArgs("-classpath", System.getProperty("test.classes"), "ParamClassTest")
            .setErrOutput(errOutput);
        ToolBox.javah(javahParams);

//if [ -f $GENERATED_HEADER_FILE ]; then  fail
//if [ ! -s ${TMP1} ]; then fail
        if (Files.exists(Paths.get("ParamClassTest.h")) || errOutput.size() == 0)
            throw new AssertionError("The only output generated by javah must be an error message");
        //jtreg again
//rm -f MissingParamClassException.class ParamClassTest.class
//rm -f $GENERATED_HEADER_FILE $TMP1
    }

}

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");
    }
}