spring-boot

Spring Boot

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mrumpf 1f5291cd84 Fixed the check whether Log4j2 is available on the classpath In Spring Boot 1.3.1 the class 'org.apache.logging.log4j.LogManager' is used to check which logging backend is in use. But this class is part of the log4j-api.jar and not part of the log4j-core.jar. That means the check is invalid, as it does not detect the actual core implementation of Log4j2 correctly. When you want to redirect Log4j2 logging via SLF4J, a NPE occurs each time the application is reloaded by the devtools, because the class Log4j2RestartListener tries to shutdown Log4j2 resources. This is done by accessing some internal shutdown method via reflection. The method that is being looked for does not exist when the log4j-api.jar is available only on the classpath, resulting in a NPE. This causes the application to stop, disappearing from the Spring Boot Dashboard in Eclipse Closes gh-4831	10 years ago
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src	Fixed the check whether Log4j2 is available on the classpath	10 years ago
pom.xml	Next Development Version	10 years ago

mrumpf 1f5291cd84 Fixed the check whether Log4j2 is available on the classpath

In Spring Boot 1.3.1 the class 'org.apache.logging.log4j.LogManager'
is used to check which logging backend is in use. But this class is
part of the log4j-api.jar and not part of the log4j-core.jar.
That means the check is invalid, as it does not detect the actual
core implementation of Log4j2 correctly.

When you want to redirect Log4j2 logging via SLF4J, a NPE occurs
each time the application is reloaded by the devtools, because the
class Log4j2RestartListener tries to shutdown Log4j2 resources.
This is done by accessing some internal shutdown method via
reflection. The method that is being looked for does not exist
when the log4j-api.jar is available only on the classpath,
resulting in a NPE. This causes the application to stop,
disappearing from the Spring Boot Dashboard in Eclipse

Closes gh-4831

10 years ago

src

Fixed the check whether Log4j2 is available on the classpath

10 years ago

pom.xml

Next Development Version

10 years ago