What problems solve Aspect Oriented Programming (AOP)?

* Code tangling

* Code obfuscation

* Code scattering

* Code injection

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Answer: code tangling and scattering

Failure to modularize crosscutting concerns using Aspect-Oriented Programming (AOP) can give rise to two issues:

1.𝗖𝗼𝗱𝗲 𝗧𝗮𝗻𝗴𝗹𝗶𝗻𝗴 (𝗖𝗼𝘂𝗽𝗹𝗶𝗻𝗴 𝗼𝗳 𝗖𝗼𝗻𝗰𝗲𝗿𝗻𝘀): Code tangling occurs when unrelated or loosely related code fragments are intertwined within the same file or module. This makes code maintenance and comprehension more difficult. It involves mixing various concerns, such as security, transactions, and error handling, with the core business logic. As a result, the code becomes multifunctional and harder to test.

2. 𝗖𝗼𝗱𝗲 𝗦𝗰𝗮𝘁𝘁𝗲𝗿𝗶𝗻𝗴 (𝗙𝘂𝗻𝗰𝘁𝗶𝗼𝗻𝗮𝗹𝗶𝘁𝘆 𝗦𝗽𝗿𝗲𝗮𝗱): Code scattering is observed when a single functionality is distributed across multiple files or modules, making it challenging to locate and fully understand that functionality. This leads to repetitive behaviors across different modules, often resulting in copy-and-paste practices to replicate the same behavior.

It's worth noting that code obfuscation and code injection are intentional techniques in software development:

- 𝗖𝗼𝗱𝗲 𝗢𝗯𝗳𝘂𝘀𝗰𝗮𝘁𝗶𝗼𝗻: Code obfuscation intentionally makes software code more intricate and less comprehensible. This approach aims to safeguard intellectual property and deter unauthorized access or reverse engineering. Techniques like renaming variables, introducing redundant code, and altering control flow create confusion in the code's interpretation.

- 𝐂𝐨𝐝𝐞 𝐈𝐧𝐣𝐞𝐜𝐭𝐢𝐨𝐧 (𝐃𝐞𝐩𝐞𝐧𝐝𝐞𝐧𝐜𝐲 𝐈𝐧𝐣𝐞𝐜𝐭𝐢𝐨𝐧): Code injection, in the context of Spring and software development, refers to dependency injection. This technique enhances modularity and maintainability by allowing the framework to provide and manage the components that a class requires. It simplifies code organization and relationships among components, unlike malicious code injection attacks which involve injecting harmful code into a system.