NoPremainAgentTest.java

/*
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 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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import jdk.testlibrary.OutputAnalyzer;
import jdk.testlibrary.ProcessTools;
import jdk.testlibrary.Utils;

/*
 * @test
 * @bug 6289149
 * @summary test when the agent's class is missing the premain() function.
 * @library /lib/testlibrary
 * @build jdk.testlibrary.* DummyMain
 * @run shell ../MakeJAR3.sh NoPremainAgent
 * @run main NoPremainAgentTest
 */
public class NoPremainAgentTest {
    // Use a javaagent without the premain() function.
    // Verify that we get the correct exception.
    public static void main(String[] a) throws Exception {
        String testArgs = String.format(
                "-javaagent:NoPremainAgent.jar -classpath %s DummyMain",
                System.getProperty("test.classes", "."));

        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
                Utils.addTestJavaOpts(testArgs.split("\\s+")));
        System.out.println("testjvm.cmd:" + Utils.getCommandLine(pb));

        OutputAnalyzer output = new OutputAnalyzer(pb.start());
        System.out.println("testjvm.stdout:" + output.getStdout());
        System.out.println("testjvm.stderr:" + output.getStderr());

        output.stderrShouldContain("java.lang.NoSuchMethodException");
        if (0 == output.getExitValue()) {
            throw new RuntimeException("Expected error but got exit value 0");
        }
    }
}