thrown from toString exception swallowed
----------------------------------------
Key: LBCLASSIC-107
URL: http://jira.qos.ch/browse/LBCLASSIC-107
Project: logback-classic
Issue Type: Bug
Affects Versions: 0.9.15
Environment: java version "1.6.0_12"
Java(TM) SE Runtime Environment (build 1.6.0_12-b04)
Java HotSpot(TM) Client VM (build 11.2-b01, mixed mode, sharing)
slf4j-api:1.5.6
Reporter: Anton Lebedevich
Assignee: Logback dev list
package loggerbug;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class Loggerbug
{
private static final Logger logger =
LoggerFactory.getLogger(Loggerbug.class);
static class ThrowsToString {
@Override
public String toString() {
throw new RuntimeException("from toString");
}
}
public static void main(String[] args)
{
ThrowsToString probe = new ThrowsToString();
logger.info("probe is {}", probe);
System.out.println("no exception");
}
}
prints "no exception" with logback-classic, but with slf4j-simple output is:
Exception in thread "main" java.lang.RuntimeException: from toString
at loggerbug.Loggerbug$ThrowsToString.toString(Loggerbug.java:13)
at java.lang.String.valueOf(String.java:2827)
at java.lang.StringBuffer.append(StringBuffer.java:219)
at
org.slf4j.helpers.MessageFormatter.deeplyAppendParameter(MessageFormatter.java:237)
at
org.slf4j.helpers.MessageFormatter.arrayFormat(MessageFormatter.java:196)
at org.slf4j.helpers.MessageFormatter.format(MessageFormatter.java:138)
at org.slf4j.impl.SimpleLogger.formatAndLog(SimpleLogger.java:222)
at org.slf4j.impl.SimpleLogger.info(SimpleLogger.java:258)
at loggerbug.Loggerbug.main(Loggerbug.java:20)
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