I also see this on https://logging.apache.org/log4j/2.0/download.html:
To use Log4j 2 in your application make sure that both the API and Core jars are in the application’s classpath. Add the dependencies listed below to your classpath. 1. log4j-api-2.11.1.jar 2. log4j-core-2.11.1.jar In short, we need instructions for how exactly to set up the project to match the environment that you have. Gj On Wed, Oct 3, 2018 at 12:11 PM Geertjan Wielenga < geertjan.wiele...@googlemail.com> wrote: > Shouldn't the import statements be this: > > import org.apache.log4j.LogManager; > import org.apache.log4j.Logger; > > ...and not this: > > import org.apache.logging.log4j.LogManager; > import org.apache.logging.log4j.Logger; > > ...if you're using log4j-1.2-api-2.11.1.jar? > > Gj > > > On Wed, Oct 3, 2018 at 11:56 AM Emma Atkinson <emma.atkins...@gmail.com> > wrote: > >> I cannot find a way to make this work, I hope you can help. I should be >> happy to be pointed to an existing answer >> >> *The Problem* >> I have a very simple Java application demonstrating the problem I am >> having with using the latest Log4j2 V2.11.1 as a module (log4j.api) and >> building it in Netbeans. The example compiles, builds and runs when I use >> the classpath, but cannot compile the module-info.java file when I use the >> modulepath. I have uploaded the code and Netbeans files at the following >> link: >> >> https://github.com/cosmiczoo/Log4j2TestCase >> >> Log4j2 V2.11.1 is a Multi-release JAR (MR-JAR). The module-info.class >> file is in log4j-api-2.11.1.jar under the folder META-INF/versions/9, which >> seems correct. >> >> The Netbeans editor can see the module log4j.api because it appears in >> the drop-down menu of completion suggestions and does not have wiggly red >> line under it. My simple test program has a module-info.java file that >> requires log4j.api and nothing else. This bit works as I would expect. >> >> >> I have located an unanswered question on StackOverflow asking a similar >> question >> https://stackoverflow.com/questions/50568139/netbeans-java-9-modules-log4j-2-11-module-not-found >> >> >> *To Reproduce My Test * >> >> I *Clean* the project. It completes successfully. >> I then use a RMB option to *Compile File* the module-info.java file. >> This generates an error pointing to the line *requires log4j.api* in my >> module-info.java. >> >> <path-to>/Log4j2TestCase/src/module-info.java:7: error: module not found: >> log4j.api >> requires log4j.api; >> 1 error >> ZipFileIndex clearCache failed >> <path-to>/Log4j2TestCase/nbproject/build-impl.xml:1131: The following >> error occurred while executing this line: >> <path-to>/Log4j2TestCase/nbproject/build-impl.xml:358: Compile failed; >> see the compiler error output for details. >> at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:1425) >> at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:1133) >> at >> org.netbeans.modules.java.source.ant.JavacTask.execute(JavacTask.java:120) >> at >> org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292) >> >> and so on. Please let me know if you want more. >> >> I have tried building this program under JDK-9, JDK-10 and JDK-11. My >> Netbeans runs on JDK-10. I am learning how to migrate to modules by trial, >> error and reading. I may have made an error, but if I have, I don't know >> where. >> >> Thanks in anticipation >> >> Emma >> >> >> >>
