/IBX/UIF004 - Constructor of application class &1 is PRIVATE

SAP Error Message - Details

• Message type: E = Error

• Message class: /IBX/UIF -

• Message number: 004

• Message text: Constructor of application class &1 is PRIVATE

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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AnswerBot

• What is the cause and solution for SAP error message /IBX/UIF004 - Constructor of application class &1 is PRIVATE ?

  The SAP error message /IBX/UIF004 Constructor of application class &1 is PRIVATE typically indicates that there is an issue with the visibility of the constructor in the application class you are trying to instantiate. This error occurs when the constructor of the specified class is declared as PRIVATE, which means it cannot be accessed from outside the class itself.
  Cause:
  
  Private Constructor: The class you are trying to instantiate has a constructor that is marked as PRIVATE, preventing external code from creating an instance of that class.
  Incorrect Class Usage: The application might be trying to use a class that is not intended to be instantiated directly, possibly due to design patterns like Singleton or Factory patterns.
  
  Solution:
  
  Check Class Definition: Review the class definition of the application class indicated by &1. Look for the constructor and see if it is marked as PRIVATE.
  Modify Constructor Visibility: If you have control over the class, consider changing the visibility of the constructor to PUBLIC or PROTECTED, depending on your design requirements.
  Use Factory Method: If the class is designed to be instantiated through a factory method or a similar design pattern, ensure you are using the correct method to obtain an instance of the class.
  Consult Documentation: If the class is part of a standard SAP application or library, refer to the official SAP documentation to understand how to properly instantiate or use the class.
  
  Related Information:
  
  Design Patterns: Understanding design patterns like Singleton, Factory, or Dependency Injection can help clarify why certain classes have private constructors.
  SAP Development Guidelines: Familiarize yourself with SAP's best practices for class design and instantiation.
  Debugging: Use debugging tools in the ABAP Workbench to trace where the instantiation is attempted and gather more context about the error.
  
  If you are not the developer of the class, you may need to reach out to the development team or consult SAP support for further assistance.