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</o:shapelayout></xml><![endif]--></head><body lang=NL link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>Hi,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>I’m working on a new application, using jlink to build it.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>One challenge is related to the simplelogger of SLF4J (as SLF4J-api is probably the most used logging api, the simplelogger implementation matches my requirements)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>There are 2 things that I would like to adjust:<o:p></o:p></span></p><ol style='margin-top:0cm' start=1 type=1><li class=MsoListParagraph style='margin-left:-18.0pt;mso-list:l0 level1 lfo2'><span lang=EN-US>Simplelogger uses the classloader to find the simplelogger.properties ( <a href="https://github.com/qos-ch/slf4j/blob/master/slf4j-simple/src/main/java/org/slf4j/simple/SimpleLoggerConfiguration.java#L107-L130">https://github.com/qos-ch/slf4j/blob/master/slf4j-simple/src/main/java/org/slf4j/simple/SimpleLoggerConfiguration.java#L107-L130</a> ). <o:p></o:p></span></li></ol><p class=MsoListParagraph style='margin-left:18.0pt'><span lang=EN-US>However, I want to externalize this file to ${java.home}/conf/simplelogger.properties, so users can adjust it to their preferences. If I could change the classloader I could control where to find this file.<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:18.0pt'><span lang=EN-US>When bundling simplelogger with jlink the jar will end up in the AppClassloader due to the SimpleServiceProvider. <o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:18.0pt'><span lang=EN-US>The only option to avoid this, is to move this jar to a separate directory and when making a new ModuleLayer, and use ModuleFinder with this path. <o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:18.0pt'><span lang=EN-US>But still, I see no way to change the classloader for this jar.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><ol style='margin-top:0cm' start=2 type=1><li class=MsoListParagraph style='margin-left:-18.0pt;mso-list:l0 level1 lfo2'><span lang=EN-US>The simplelogger.properties is the default configuration, and I want to make it possible to override these values. <o:p></o:p></span></li></ol><p class=MsoListParagraph style='margin-left:18.0pt'><span lang=EN-US>The simplelogger offers the option to use SystemProperties to override values from simplelogger.properties.<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:18.0pt'><span lang=EN-US>I want to avoid that the System.properties will be polluted with entities just for logging.<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:18.0pt'><span lang=EN-US>As far as I know it is not possible to scope System.properties: they are global, available for every part of the application.<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:18.0pt'><span lang=EN-US>Another idea I had was to extend the simplelogging.properties resources at runtime using the SequenceInputStream, and for this I also need to have control over the classloader, as it requires to override the ClassLoader.getResourceAsStream()<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>It seems both challenges could be solved if could control the classloader (while still being protected by jdk.internal.loader.Loader).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Am I missing some feature or it there another way to solve these issues?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Best,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Robert <o:p></o:p></span></p></div></body></html>