test/hotspot/jtreg/runtime/ErrorHandling/SafeFetchInErrorHandlingTest.java

/*
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import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.regex.Pattern;

import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;

/*
 * @test
 * @bug 8074552
 * @summary SafeFetch32 and SafeFetchN do not work in error handling
 * @modules java.base/jdk.internal.misc
 * @library /test/lib
 * @requires vm.flagless
 * @requires vm.debug
 * @requires vm.flavor != "zero"
 * @author Thomas Stuefe (SAP)
 * @run driver SafeFetchInErrorHandlingTest
 */

public class SafeFetchInErrorHandlingTest {

  public static void main(String[] args) throws Exception {
    ProcessBuilder pb = ProcessTools.createLimitedTestJavaProcessBuilder(
        "-XX:+UnlockDiagnosticVMOptions",
        "-Xmx100M",
        "-XX:ErrorHandlerTest=14",
        "-XX:+TestSafeFetchInErrorHandler",
        "-XX:-CreateCoredumpOnCrash",
        "-version");

    OutputAnalyzer output_detail = new OutputAnalyzer(pb.start());

    // we should have crashed with a SIGSEGV
    output_detail.shouldMatch("# A fatal error has been detected by the Java Runtime Environment:.*");
    output_detail.shouldMatch("# +(?:SIGSEGV|SIGBUS|EXCEPTION_ACCESS_VIOLATION).*");

    // extract hs-err file
    File hs_err_file = HsErrFileUtils.openHsErrFileFromOutput(output_detail);

    // File should contain "Will test SafeFetch, SafeFetch OK". The latter indicates we survived the SafeFetch without
    // a secondary crash.
    Pattern [] pattern = new Pattern[] {
        Pattern.compile("Will test SafeFetch..."),
        Pattern.compile("SafeFetch OK."),
    };

    HsErrFileUtils.checkHsErrFileContent(hs_err_file, pattern, true);

    System.out.println("OK.");

  }

}