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[MTM-59701] Maven in debug mode: suppress HttpClient logging #3958

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Dec 2, 2025
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[MTM-59701] Maven in debug mode: suppress HttpClient logging #3958

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MTM-59701 Maven in debug mode: suppress HttpClient logging
Nov 27, 2025
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MTM-59701 Maven in debug mode: suppress HttpClient logging
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MTM-59701 including review comments
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16 changes: 16 additions & 0 deletions content/microservice-sdk/java-bundle/developing-microservice.md
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Expand Up @@ -679,6 +679,22 @@ To pass the configuration only to the particular build, execute the following co
$ mvn microservice:upload -Dupload.application.name=helloworld -Dupload.url=https://demos.cumulocity.com -Dupload.username=demos/username -Dupload.password=****** -Dskip.microservice.upload=false
```


#### Using Maven in debug mode {#using-maven-in-debug-mode}

Running Maven CLI commands in debug mode (for example, `mvn clean install --debug ...`) may
generate a very large volume of HTTP-related log output, such as logs from resource downloads.
Analyzing this data might quickly become tedious.

To reduce such logging information, HTTP logging can be suppressed with these command line options:
```
-Dorg.slf4j.simpleLogger.log.org.apache.http=off
-Dorg.slf4j.simpleLogger.log.org.apache.http.wire=off
```
Besides `off`, `error` or `warn` might also be appropriate values. The parameters can also be added to the Maven configuration file `${MAVEN_HOME}/conf/logging/simplelogger.properties`
or to the `MAVEN_OPTS` environment variable. Related documentation can be found in [Maven logging](https://maven.apache.org/maven-logging.html).


### Heap and perm/metadata {#heap-and-permmetadata}

To calculate heap and perm/metadata, it takes the limit defined in the [microservice manifest](/microservice-sdk/general-aspects/#microservice-manifest) (`resources/memory`) and it is converted into Megabytes (MB). For Java applications developed using the Java Microservice SDK the minimal value is 178MB. <br>
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