Return tag in javadocs converts to something else

[shahrzadav]

Describe the bug The code generator at the end of the generation of a method converts all the words that equal to "return" to the killStatement + "return". This causes the return tag in javadocs to also change, and that is a bug. Here is the line where it happens. https://github.com/eclipse-cognicrypt/CogniCrypt/blob/ea97afa97a2079a2e42279edb2212e6f50f99a89/plugins/de.cognicrypt.codegenerator/src/main/java/de/cognicrypt/codegenerator/generator/GeneratorMethod.java#L160

To Reproduce Steps to reproduce the behavior:

1. Go to this repository and clone it 'https://github.com/shahrzadav/CogniCrypt/tree/iss296-AddCommentCodeGen'
2. Run the project
3. Click on Code Generator in inner eclipse
4. Generate code for password hasher (second task)
5. Scroll down to java docs for createPWHash method
6. See "@pBEKeySpec.clearPassword();" inside javadocs

Expected behavior The return tags in javadoc should not change.

Screenshots

Desktop (please complete the following information):

• OS: [e.g. iOS] Windows 10
• Browser [e.g. chrome, safari] Chrome
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]