improvements in concoredocker.py, concore.py, concordocker.java

[saksham-gera]

1. Exception Handling is Too Broad

• The try-except blocks often use a bare except, which catches all exceptions but does not specify or log the actual error. This makes debugging difficult.

2. Potential Infinite Loop in read Function

• If ins remains empty, it can result in an infinite loop.
• Suggested Fix: Add a maximum retry limit

3. making a function for safe_literal_eval

4. Uninitialized simtime Variable

• Suggested Fix: initialize it with 0.

5. File Not Closed Properly

• Suggested Fix: Use with open(...)

6. Potential Directory/Path Issues

• The script assumes /in and /out are absolute paths, but in some environments (e.g., Windows), they may not exist.
• Suggested Fix: Use os.path.join and ensure directories exist.