Is there a way to exclude it.I did give it a try but got ClassNotFoundException: org.apache.log4j.Level
I do see that hbase-shaded-client do have slf4j dependency so there might be a way to exclude log4j and use slf4j but I'm not able to.
Yes, you can exclude log4j, but you must add back in log4j-over-slf4j.
<dependency>
<groupId>org.apache.hbase</groupId>
<artifactId>hbase-client</artifactId>
<version>[some version]</version>
<exclusions>
<exclusion>
<artifactId>log4j</artifactId>
<groupId>log4j</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>log4j-over-slf4j</artifactId>
<version>[some version]</version>
</dependency>
Related
I'm using Spring initializr to have the necessary package and downloading. Once I download, there are changes that I'm making in the pom.xml like excluding packages like slf4j, logging (when i plan to use log4j2) and excluding tomcat when trying to deploy into standalone server.
I don't know what are the other items that are capable to exclude. Is there any documentation like which package contains additional artifacts? Trying to avoid certain jars while packaging so that I think I can reduce the package(jar/war) size.
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-batch</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.seleniumhq.selenium</groupId>
<artifactId>selenium-java</artifactId>
<exclusions>
<exclusion>
<artifactId>commons-logging</artifactId>
<groupId>commons-logging</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency>
All spring boot starter packages can be found here:
https://github.com/spring-projects/spring-boot/tree/master/spring-boot-project/spring-boot-starters
They are all just pom.xml files. You can exclude anything you want from any dependency you are using by analyzing the pom's dependencies in the started packages.
I am building a spring-boot application using an alternative to tomcat related stuff (jetty instead of tomcat and hikariCP instead of tomcat-jdbc) and want to exclude them from my dependencies written in pom.xml
I did that for 2 of the packages as shown below -
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jetty</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<exclusions>
<exclusion>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jdbc</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.zaxxer</groupId>
<artifactId>HikariCP</artifactId>
<version>2.6.0</version>
</dependency>
But there is some dependency which is including tomcat-jdbc as part of it.
Is there a way to debug that and find out which dependency is including tomcat jdbc as part of it?
mvn dependency:tree
If you run mvn dependency:tree, you will see that there are now a number of additional dependencies.
I'm creating a java EE integration test suite with arquillian and junit in a multi pom maven project. In the main pom I am including both the embedded glassfish required by arquillian and the slf4j library required by my project. The embedded glassfish contains a reference to slf4j itself, so I am trying to remove it by specifying an exclusion inside the dependency, as specified in http://www.slf4j.org/codes.html#multiple_bindings.
<dependency>
<groupId>org.jboss.arquillian.container</groupId>
<artifactId>arquillian-glassfish-embedded-3.1</artifactId>
<version>1.0.0.CR4</version>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
</exclusion>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
</exclusion>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.glassfish.main.extras</groupId>
<artifactId>glassfish-embedded-all</artifactId>
<version>3.1.2</version>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
</exclusion>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
</exclusion>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
<version>1.7.19</version>
<scope>test</scope>
</dependency>
However, whenever I start the tests, the slf4j dependency pops magically out
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/C:/Users/panda/.m2/repository/org/glassfish/main/extras/glassfish-embedded-all/3.1.2/glassfish-embedded-all-3.1.2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/C:/Users/panda/.m2/repository/org/slf4j/slf4j-simple/1.5.10/slf4j-simple-1.5.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
Probably I'm missing something... What should be the right approach to remove the dependency to slf4j contained in the glassfish embedded jar?
No, you cannot.
Since the glassfish-embedded-all-3.1.2.jar is an uber jar which contains the org/slf4j/* inside.
You can extract your C:/Users/panda/.m2/repository/org/glassfish/main/extras/glassfish-embedded-all/3.1.2/glassfish-embedded-all-3.1.2.jar to see it further. Not only the slf4j but also every required packages are inside as well.
If you look at its pom, there is no any dependency to the slf4j as well. It is a reason why you cannot exclude it via the dependency exclusion.
I am creating a webservice which hits existing business code.
The required jar which deals with logging is org.ops4j.pax.logging.
I have include this in the pom
<dependency>
<groupId>org.ops4j.pax.logging</groupId>
<artifactId>pax-logging-api</artifactId>
<version>1.6.0</version>
</dependency>
This jar allows access to a particular log4j method which is used throughout the business layer
LOGGER.debug(object, object);
One of the other required jars is a third party jar.
This jar contains a different version of log4j which does not implement the debug(object, object) method.
When I add this jar to the pom, the JVM finds the log4j classes in this third party jar first and the code falls over.
I have tried to exclude the log4j in the third party jar but to no avail.
<dependency>
<groupId>...</groupId>
<artifactId>...</artifactId>
<version>...</version>
<exclusions>
<exclusion>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
</exclusion>
</exclusions>
</dependency>
Any thoughts?
This is the correct answer from https://www.baeldung.com/slf4j-classpath-multiple-bindings
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</exclusion>
<exclusion>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
</exclusion>
</exclusions>
Sometimes log4j-core also shows up even after excluding log4j.Below configurations worked for me.
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</exclusion>
<exclusion>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
</exclusion>
<exclusion>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
</exclusion>
</exclusions>
I am trying to explicitly override a transitive dependencies version, but doesn't seem to work.
I have this in my projects pom
<!-- use no-commons-logging -->
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>99.0-does-not-exist</version>
</dependency>
<!-- no-commons-logging-api, if you need it -->
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging-api</artifactId>
<version>99.0-does-not-exist</version>
</dependency>
But, the first one doesn't seem to override the transitive dependencies version. I am not sure why ?
Here is the full POM
http://pastebin.com/TBP0YTZs
Here is the dependency tree
http://pastebin.com/VBdjiVcL
PS:
a) This is what I am trying to do
http://day-to-day-stuff.blogspot.com/2007/10/announcement-version-99-does-not-exist.html
Actually, there is much cleaner method to get rid of commons-logging once and for all:
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.1.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>1.6.1</version>
</dependency>
Based on: http://www.slf4j.org/faq.html#excludingJCL