Java on App Service: Updates and improvements available
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We have applied a host of improvements, bug fixes and runtime version updates to the Java images on App Service Linux!
* All JRE and Tomcat images now have jCmd for Java Flight Recorder, a profiling and debugging tool
* Documentation will be published on [the Java developer guide](https://docs.microsoft.com/en-us/azure/app-service/containers/configure-language-java) soon
* All Tomcat images now have a servlet filter that provides access to Easy Auth claims and other security-related Tomcat APIs ([documentation](https://docs.microsoft.com/en-us/azure/app-service/containers/configure-language-java#authenticate-users))
* The Java 8 and 11 images have been updated to 8u212 and 11u3 respectively
* Log file names will now contain the Linux host’s name (host’s hostname) instead of the website\_instance\_id
* The Wildfly 14 image (currently in preview) has been updated to JRE 8u212, includes jCmd and has a host of bug fixes
For more details, see [the Java developer guide](https://docs.microsoft.com/en-us/azure/app-service/containers/configure-language-java). To get started, follow [the quickstart for Java on App Service Linux](https://docs.microsoft.com/en-us/azure/app-service/containers/quickstart-java).
* App Service (Linux)
* Features
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* [ App Service (Linux)](https://azure.microsoft.com/en-gb/services/app-service/)
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