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I am looking for ways to remove all the annotations from existing Java Source Code. I am looking for an ant task or any other approach. I have seen some solutions that do this at the class level, but I am looking to do this at the source code to source code level.

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    You could probably use some kind of script - try grep -v or some clever sed, but it would help to know what you are trying to achieve, because annotations are used for a lot of different things today, and to remove them all indiscriminately is potentially a bad idea... Commented Aug 22, 2013 at 12:19
  • I am looking to use annotations for server side, but same code, we need to use on device side, some devices such as JavaME does not support annotations. Hence, at build time. I could do search and replace.. but I am looking for engineering solution so that, mistakes can be less in future. Commented Aug 23, 2013 at 14:58

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I have done this through Java Parser code available in Lombok.

Look at these methods which has the logic

lombok.javac.handlers.JavacHandlerUtil#deleteAnnotationIfNecessary lombok.javac.handlers.JavacHandlerUtil#deleteImportFromCompilationUnit

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I ended up using JEdit which has brilliant regular expression support.

I wanted to replace specific annotations (I wanted to keep stuff like @Override). You can easily do that for all buffers or a directory tree.

Just write some simple expressions for the annotations you want to remove. For example

^\s*@NamedQueries\(\n\{[^\}]+\}\)\n
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