可以将堆栈跟踪异常添加到 SLF4J LOGGER 吗？

Question

这里是 SSCCE 添加 SLF4J LOGGER 消息并抛出空指针异常。它使用列表附加器来检查日志：

package my.tester;

import org.junit.jupiter.api.Assertions;
import org.slf4j.LoggerFactory;

import ch.qos.logback.classic.Logger;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.read.ListAppender;

public class TestException {

    public static void main(String[] args) {

        final Logger LOGGER = (ch.qos.logback.classic.Logger) LoggerFactory.getLogger("TestException");

        final ListAppender<ILoggingEvent> listAppender = new ListAppender<>();
        listAppender.start();
        LOGGER.addAppender(listAppender);

        NullPointerException testException =  new NullPointerException("Oops!");

        LOGGER.info("doing stuff");
        LOGGER.error("problem here", testException);

        Assertions.assertTrue(listAppender.list.get(1).getFormattedMessage().contains("Oops"));

    }
}

日志追加器中只有两行：

doing stuff
problem here

因此，检查异常的测试自然会失败，输出如下：

16:45:15.577 [main] INFO TestException - doing stuff
16:45:15.591 [main] ERROR TestException - problem here
java.lang.NullPointerException: Oops!
    at my.texter.TestException.main(TestException.java:34)

Exception in thread "main" org.opentest4j.AssertionFailedError: expected: <true> but was: <false>
    at org.junit.jupiter.api.AssertionUtils.fail(AssertionUtils.java:55)
    at org.junit.jupiter.api.AssertTrue.assertTrue(AssertTrue.java:40)
    at org.junit.jupiter.api.AssertTrue.assertTrue(AssertTrue.java:35)
    at org.junit.jupiter.api.Assertions.assertTrue(Assertions.java:162)
    at my.texter.TestException.main(TestException.java:39)

如何将来自 null 异常的堆栈跟踪添加到日志中？

Answer 1

尝试改变

LOGGER.error("这里有问题", testException);

到

LOGGER.error("这里有问题", testException,testException);