I have an file with the name
apps\cq\personalization\components\clientcontext\command\thumbnail\png.java
what is use of this file.This file seems to be creating many static analysis issues.
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First of all, in AEM it is possible to put JAVA files inside the jcr repository. they will be treated the same way as any script (jsp, sightly, etc) and follow the same render conditions. The
img.JAVAservlet, which renders most images in AEM, is a good example of this.In your case, your file is an overlay for a file originally in
/libs/cq/personalization/components/clientcontext/command/thumbnail/png.java, which means that it is probably a variation of the original file.This is a servlet which will respond to requests with the
pngextension for resources with resourceTypecq/personalization/components/clientcontext/command/thumbnail.Quickly looking through it, it seems it simply renders an image that is located inside the AEM Client Context path.
I agree with you that it is a curious approach (note the TODO inside the file ). If you need an overlay for this and dont want to keep a Java file inside your repository, you could achieve the same by registering the same servlet as an OSGi declarative service for the right extension and resourceType using the
@SlingServletannotation.