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Posted to notifications@logging.apache.org by "alset (Jira)" <ji...@apache.org> on 2021/08/24 17:24:00 UTC
[jira] [Created] (LOG4J2-3143) ThrowableProxyRenderer cannot handle
options with depth and "short"
alset created LOG4J2-3143:
-----------------------------
Summary: ThrowableProxyRenderer cannot handle options with depth and "short"
Key: LOG4J2-3143
URL: https://issues.apache.org/jira/browse/LOG4J2-3143
Project: Log4j 2
Issue Type: Bug
Components: Appenders, Configuration, Documentation
Affects Versions: 2.14.1
Environment: Darwin 18.7.0 Darwin Kernel Version 18.7.0
java version "11.0.11" 2021-04-20 LTS
Java(TM) SE Runtime Environment 18.9 (build 11.0.11+9-LTS-194)
Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.11+9-LTS-194, mixed mode)
Reporter: alset
The [Document|https://logging.apache.org/log4j/log4j-2.1/manual/layouts.html] said that *%xEx\{short}* which will only output the first line of the Throwable or *%xEx\{n}* where the first n lines of the stacktrace will be printed. But it actually not work.
I followed the code in ThrowableProxyRenderer.java . It turns out that the method here not consider about these options at all.
{code:java}
static void formatExtendedStackTraceTo(final ThrowableProxy src, final StringBuilder sb, final List<String> ignorePackages, final TextRenderer textRenderer, final String suffix, final String lineSeparator) {
textRenderer.render(src.getName(), sb, "Name");
textRenderer.render(": ", sb, "NameMessageSeparator");
textRenderer.render(src.getMessage(), sb, "Message");
renderSuffix(suffix, sb, textRenderer);
textRenderer.render(lineSeparator, sb, "Text");
final StackTraceElement[] causedTrace = src.getThrowable() != null ? src.getThrowable().getStackTrace() : null;
formatElements(sb, Strings.EMPTY, 0, causedTrace, src.getExtendedStackTrace(), ignorePackages, textRenderer, suffix, lineSeparator);
formatSuppressed(sb, TAB, src.getSuppressedProxies(), ignorePackages, textRenderer, suffix, lineSeparator);
formatCause(sb, Strings.EMPTY, src.getCauseProxy(), ignorePackages, textRenderer, suffix, lineSeparator);
}
{code}
Here are my test case
{code:java}
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
public class Test {
private static final Logger logger = LogManager.getLogger(Test.class);
private static void makeADeepErr(int i, int n) throws Exception {
if (i < n) {
makeADeepErr(i + 1, n);
}
throw new Exception("err");
}
public static void main(String[] args) {
try {
makeADeepErr(0, 20);
} catch (Exception e) {
logger.error("err occur", e);
}
}
}
{code}
And here are my log4j2.xml
{code:xml}
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN">
<Appenders>
<Console name="Console" target="SYSTEM_OUT" follow="true">
<PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n %xEx{short}"/>
</Console>
</Appenders>
<Loggers>
<Root level="info">
<AppenderRef ref="Console"/>
</Root>
</Loggers>
</Configuration>
{code}
And here are my output
{code:java}
01:03:26.877 [main] ERROR Test - err occur
java.lang.Exception: err
at Test.makeADeepErr(Test.java:11) ~[classes/:?]
at Test.makeADeepErr(Test.java:9) ~[classes/:?]
at Test.makeADeepErr(Test.java:9) ~[classes/:?]
at Test.makeADeepErr(Test.java:9) ~[classes/:?]
at Test.makeADeepErr(Test.java:9) ~[classes/:?]
at Test.makeADeepErr(Test.java:9) ~[classes/:?]
at Test.makeADeepErr(Test.java:9) ~[classes/:?]
at Test.makeADeepErr(Test.java:9) ~[classes/:?]
at Test.makeADeepErr(Test.java:9) ~[classes/:?]
at Test.makeADeepErr(Test.java:9) ~[classes/:?]
at Test.makeADeepErr(Test.java:9) ~[classes/:?]
at Test.makeADeepErr(Test.java:9) ~[classes/:?]
at Test.makeADeepErr(Test.java:9) ~[classes/:?]
at Test.makeADeepErr(Test.java:9) ~[classes/:?]
at Test.makeADeepErr(Test.java:9) ~[classes/:?]
at Test.makeADeepErr(Test.java:9) ~[classes/:?]
at Test.makeADeepErr(Test.java:9) ~[classes/:?]
at Test.makeADeepErr(Test.java:9) ~[classes/:?]
at Test.makeADeepErr(Test.java:9) ~[classes/:?]
at Test.makeADeepErr(Test.java:9) ~[classes/:?]
at Test.makeADeepErr(Test.java:9) ~[classes/:?]
at Test.main(Test.java:16) [classes/:?]
{code}
But the *%xEx\{none}* or *%xEx\{0}* can work fine.
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