sb.append(cause.getClass().getName());
            } else {
                sb.append(cause.getMessage());
            }
            try (final StringWriter sw = new StringWriter(); final PrintWriter pw = new PrintWriter(sw)) {
                cause.printStackTrace(pw);
                pw.flush();
                sb.append(" [ ").append(sw.toString()).append(" ]");
            } catch (final IOException ignore) {}

     */
    private String getStackTrace(final Throwable t) {
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        try (final StringWriter sw = new StringWriter(); final PrintWriter pw = new PrintWriter(sw)) {
            t.printStackTrace(pw);
            pw.flush();
            return systemHelper.abbreviateLongText(sw.toString());
        } catch (final IOException e) {

        return rootCause;
    }

    @Override
    public String toString() {
        if (rootCause != null) {
            final StringWriter sw = new StringWriter();
            final PrintWriter pw = new PrintWriter(sw);
            rootCause.printStackTrace(pw);
            return super.toString() + "\n" + sw;
        }
        return super.toString();
    }

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.cling.transfer;

import java.io.PrintWriter;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Map;

import org.apache.maven.api.services.MessageBuilderFactory;
import org.eclipse.aether.transfer.TransferCancelledException;

    }

    @Override
    public void warnAboutDeprecatedOptions(ParserRequest request, Consumer<String> printWriter) {}

    @Override
    public void displayHelp(ParserRequest request, Consumer<String> printWriter) {
        options.get(0).displayHelp(request, printWriter);
    }

    protected <T> Optional<T> returnFirstPresentOrEmpty(Function<O, Optional<T>> getter) {
        for (O option : options) {

        ClassMetaDataUtil.extractFromMetadata(getMetaDataFile().getAsFile().get(), getExcludedPackages().get(), classMetaData -> packages.add(classMetaData.getPackageName()));

        try (PrintWriter writer = new PrintWriter(new FileWriter(getImportsDestFile().getAsFile().get()))) {
            for (String packageName : packages) {
                writer.print("import ");
                writer.print(packageName);

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.curl.logging

import java.io.PrintWriter
import java.io.StringWriter
import java.time.Instant
import java.time.ZoneOffset
import java.time.format.DateTimeFormatterBuilder
import java.time.temporal.ChronoField.HOUR_OF_DAY

        CrawlerSystemException exception = new CrawlerSystemException("Print stack trace test");

        StringWriter stringWriter = new StringWriter();
        PrintWriter printWriter = new PrintWriter(stringWriter);
        exception.printStackTrace(printWriter);

        String stackTraceOutput = stringWriter.toString();
        assertNotNull(stackTraceOutput);
        assertTrue(stackTraceOutput.contains("CrawlerSystemException"));

    private StringWriter stringWriter;
    private PrintWriter printWriter;
    private ByteArrayOutputStream outputStream;
    private ServletOutputStream servletOutputStream;

    @BeforeEach
    void setUp() throws Exception {
        // Setup response writers
        stringWriter = new StringWriter();
        printWriter = new PrintWriter(stringWriter);
        outputStream = new ByteArrayOutputStream();

        return problems;
    }

    private static String toMessage(List<SettingsProblem> problems) {
        StringWriter buffer = new StringWriter(1024);

        PrintWriter writer = new PrintWriter(buffer);

        writer.print(problems.size());
        writer.print((problems.size() == 1) ? " problem was " : " problems were ");
        writer.print("encountered while building the effective settings");