[slf4j-dev] [JIRA] Updates for SLF4J-557: MDCCloseable: not a great fit for a try-with-resources statement

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SLF4J / SLF4J-557 [In Progress]
MDCCloseable: not a great fit for a try-with-resources statement

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Here's what changed in this issue in the last few minutes.


There is 1 comment.


View or comment on issue using this link
https://jira.qos.ch/browse/SLF4J-557

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 1 comment
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Alberto Scotto on 23/Mar/23 13:28

To make things more clear.

Given the following test:

 
{code:java}
@Test
public void test() {
  try (MDC.MDCCloseable ignored = MDC.putCloseable("k", "val")) {
    log.info("BEGIN try");
    throw new RuntimeException();
  } catch (Exception e) {
    log.error("FAILED try", e); // MDC will not be attached to this log at runtime!
  }
}{code}
 

Actual logs produced:

 
{noformat}
2023-03-23 13:21:37,535 INFO  MyTest k=val - BEGIN try
2023-03-23 13:21:37,537 ERROR MyTest k= - FAILED try
{noformat}
Expected:
{noformat}
2023-03-23 13:21:37,535 INFO  MyTest k=val - BEGIN try
2023-03-23 13:21:37,537 ERROR MyTest k=val - FAILED try{noformat}
 


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