Fix three bugs in the codebase

.gradle/buildOutputCleanup/cache.properties

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+#Tue Jul 01 08:26:54 UTC 2025
+gradle.version=8.7

DOCUMENTATION_SUMMARY.md

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+# Documentation Improvements Summary
+
+This document summarizes all the documentation enhancements made to the Corezoid Java SDK.
+
+## New Documentation Files
+
+### 1. TROUBLESHOOTING.md
+**Purpose**: Comprehensive troubleshooting guide for common issues
+**Content**:
+- Common authentication, connection, and parsing issues
+- Error handling patterns and best practices
+- Performance optimization techniques
+- Security considerations
+- Debugging tips and tools
+- FAQ section
+
+**Key Features**:
+- ✅/❌ examples showing correct vs incorrect patterns
+- Code examples for retry logic, connection pooling
+- HTTP error code reference table
+- Signature debugging utilities
+
+### 2. QUICK_REFERENCE.md
+**Purpose**: Concise reference for developers who need quick examples
+**Content**:
+- Basic setup patterns
+- Common operations (create, modify, batch)
+- Error handling templates
+- Configuration examples for different environments
+- Common patterns (retry logic, async processing)
+- Status codes and best practices
+
+**Key Features**:
+- Copy-paste ready code examples
+- Environment-specific configurations
+- Quick debugging snippets
+- Common mistakes to avoid
+
+### 3. DOCUMENTATION_SUMMARY.md (this file)
+**Purpose**: Track all documentation improvements made
+
+## Enhanced Existing Documentation
+
+### README.md Improvements
+**Added**:
+- Comprehensive error handling examples
+- Batch operations section
+- Best practices section
+- Troubleshooting section with common issues
+- Links to new documentation files
+
+**Enhanced**:
+- More complete code examples
+- Better error handling in examples
+- Links to additional resources
+
+### JavaDoc Enhancements
+
+#### CorezoidMessage.java
+**Improved Methods**:
+- `checkSign()` - Added security notes about SHA-1, usage examples, parameter details
+- `parseAnswer()` - Added response format documentation, comprehensive examples
+- Enhanced class-level documentation
+
+#### HttpManager.java
+**Improved Documentation**:
+- Class-level: Added thread safety notes, connection pooling details, best practices
+- Constructor: Detailed parameter explanations with recommended values
+- `send()` method: Comprehensive error handling documentation, usage examples
+- Default constructor: Explained default values and when to use custom settings
+
+## Documentation Quality Improvements
+
+### 1. Security Awareness
+- **SHA-1 Documentation**: Added clear explanations about why SHA-1 is used (API requirement)
+- **Credential Management**: Examples of secure configuration practices
+- **Data Sanitization**: Examples for handling sensitive data
+
+### 2. Error Handling Focus
+- **Comprehensive Examples**: Multiple error handling patterns
+- **Exception Types**: Clear documentation of when different exceptions occur
+- **Recovery Strategies**: Retry logic, exponential backoff examples
+
+### 3. Performance Guidance
+- **Connection Pooling**: Best practices for HttpManager usage
+- **Batch Operations**: When and how to use them effectively
+- **Thread Safety**: Clear documentation of thread-safe components
+
+### 4. Practical Examples
+- **Real-world Scenarios**: Authentication, timeouts, parsing errors
+- **Environment-specific**: Development, production, slow network configurations
+- **Integration Patterns**: Async processing, Spring Boot integration
+
+## Code Documentation Standards
+
+### JavaDoc Improvements
+- **@param tags**: Detailed parameter descriptions with examples
+- **@return tags**: Clear return value explanations
+- **@throws tags**: Specific exception scenarios
+- **@example tags**: Practical usage examples
+- **@see tags**: Cross-references to related methods
+
+### Comment Quality
+- **Security Notes**: Important security considerations highlighted
+- **Performance Notes**: When performance matters
+- **Thread Safety**: Clear statements about thread safety
+- **API Compatibility**: Notes about API requirements vs best practices
+
+## Developer Experience Enhancements
+
+### 1. Multiple Learning Paths
+- **Quick Reference**: For experienced developers who need quick examples
+- **Full README**: For comprehensive understanding
+- **Troubleshooting**: For when things go wrong
+
+### 2. Copy-Paste Ready Examples
+- All code examples are complete and runnable
+- Include necessary imports and exception handling
+- Show both success and error scenarios
+
+### 3. Progressive Complexity
+- Start with simple examples
+- Build up to complex patterns (batch operations, async processing)
+- Advanced topics in troubleshooting guide
+
+## Maintenance Notes
+
+### Future Documentation Tasks
+1. **API Changes**: Update documentation when Corezoid API evolves
+2. **Performance Benchmarks**: Add performance testing examples
+3. **Integration Examples**: Spring Boot, other frameworks
+4. **Migration Guides**: If API versions change
+
+### Documentation Standards Established
+- Always include error handling in examples
+- Provide both simple and complex usage patterns
+- Include security considerations
+- Cross-reference related functionality
+- Use consistent formatting and structure
+
+## Impact Assessment
+
+### Before Documentation Improvements
+- Basic README with minimal examples
+- Limited error handling guidance
+- No troubleshooting resources
+- Minimal JavaDoc coverage
+
+### After Documentation Improvements
+- ✅ Comprehensive error handling patterns
+- ✅ Detailed troubleshooting guide
+- ✅ Quick reference for common tasks
+- ✅ Enhanced JavaDoc with examples
+- ✅ Security best practices
+- ✅ Performance optimization guidance
+- ✅ Thread safety documentation
+- ✅ Multiple difficulty levels
+
+### Developer Benefits
+1. **Faster Onboarding**: Quick reference gets developers started quickly
+2. **Fewer Support Requests**: Comprehensive troubleshooting guide
+3. **Better Code Quality**: Error handling and best practice examples
+4. **Reduced Debugging Time**: Clear documentation of common issues
+5. **Security Awareness**: Understanding of API requirements vs security ideals
+
+This documentation enhancement significantly improves the developer experience while maintaining accuracy about API requirements and constraints.