Which jar org.slf4j.loggerfactory

For a bit more explanation: keep in mind that the "I" in "api" is interface. The slf4j-api jar only holds the needed interfaces actually LoggerFactory is an abstract class. You also need the actual implementations an example of which, as noted above, can be found in slf4j-simple. If you look in the jar, you'll find the required classes under the "org.

Python Javascript Linux Cheat sheet Contact. ClassNotFoundException: org. Try downloading jar from here You can find, it holds the class you need. EDIT Seems like the website has changed its structure. For slf4j-api jar file for latest version as of now, please visit this link For slf4j-simple jar file for latest version as of now, please visit this link. IllegalAccessError: tried to access field org. LoggerFactory — junaidp.

I tried to visit: java2s. The given url is not working now, it says The requested document was not found on this server.

Please update the link — Visruth. Show 2 more comments. Hope that will help someone. Community Bot 1 1 1 silver badge. Patrick Patrick 2, 2 2 gold badges 27 27 silver badges 46 46 bronze badges. Then you'll be able to run the job locally. Hope my experience will help someone. Bukharov Sergey 8, 4 4 gold badges 34 34 silver badges 50 50 bronze badges.

Bofei Yu Bofei Yu 11 1 1 bronze badge. Add the following JARs to the build path or lib folder of the project: slf4j-api Shanu Shine Shanu Shine 41 1 1 bronze badge. It needs "slf4j-simple You can also download "slf4j I had the same on Android. This is how i fixed it: including ONLY the file: slf4j-api Obviously, the rest of the libs can be there android-support-v4, etc Versions: Eclipse Kepler 06 14 - 02 29 ADT Sign up or log in Sign up using Google.

Sign up using Facebook. Sign up using Email and Password. Only when the end-user decides to enable logging will she need to install the SLF4J binding corresponding to the logging framework chosen by her. Basic rule Embedded components such as libraries or frameworks should not declare a dependency on any SLF4J binding but only depend on slf4j-api. When a library declares a transitive dependency on a specific binding, that binding is imposed on the end-user negating the purpose of SLF4J.

Note that declaring a non-transitive dependency on a binding, for example for testing, does not affect the end-user. SLF4J usage in embedded components is also discussed in the FAQ in relation with logging configuration , dependency reduction and testing. Given Maven's transitive dependency rules, for "regular" projects not libraries or frameworks declaring logging dependencies can be accomplished with a single dependency declaration. An SLF4J binding designates an artifact such as slf4j-jdk From the client's perspective all versions of slf4j-api are compatible.

Client code compiled with slf4j-api-N. You only need to ensure that the version of your binding matches that of the slf4j-api. You do not have to worry about the version of slf4j-api. Mixing different versions of slf4j-api. However, from the client's perspective all versions of slf4j-api are compatible.

You can always use any version of slf4j-api. At initialization time, if SLF4J suspects that there may be an slf4j-api vs. It is common to find projects depending on a combination of JCL, java. It then becomes desirable to consolidate logging through a single channel. For more details, please refer to the page on Bridging legacy APIs.

MDC data can also be highly helpful in filtering messages or triggering certain actions. Note that at this time, only log4j and logback offer MDC functionality. If the underlying framework does not offer MDC, for example java. Thus, as a SLF4J user, you can take advantage of MDC information in the presence of log4j or logback, but without forcing these logging frameworks upon your users as dependencies.

Similarly, log4j-over-slf4j. See the page on Bridging legacy APIs for more details. Hello World As customary in programming tradition, here is an example illustrating the simplest way to output "Hello world" using SLF4J. Logger; import org. SLF4J: Failed to load class "org. This warning is printed because no slf4j binding could be found on your class path.

Logger; 2: import org. Here are few usage examples: The statement logger. Binding with a logging framework at deployment time As mentioned previously, SLF4J supports various logging frameworks.

You also need to place log4j.