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  1. JDK
  2. JDK-8356143

Clarification Regarding Java Program Entry Point and Static Block Execution

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      A DESCRIPTION OF THE PROBLEM :
      Dear Oracle Java Documentation Team,

      I hope this message finds you well.

      I have been studying Java and came across the commonly stated guideline that the main(String[] args) method serves as the entry point for all Java applications. However, during experimentation and further reading, I observed that static blocks in a Java class are executed before the main() method, and in some cases, it is even possible to run logic using only static blocks without defining a main() method (such as in earlier versions of Java or with specific class loaders).

      This leads me to a conceptual query:
      If static blocks are executed prior to main(), and code within them can run independently, is it still fully accurate to say that the main method is the only entry point of a Java program?

      I understand that main() serves as the starting point for execution in standard standalone Java applications. However, since there are cases (e.g., static initialization, frameworks, reflection) where control can begin before or without main(), I believe it may be valuable to clarify this nuance in the official documentation — especially for learners trying to deeply understand Java's execution model.

      I would greatly appreciate any insights or thoughts from your side on this topic.

      Thank you for maintaining such comprehensive resources for Java developers worldwide.

            adev Anupam Dev
            webbuggrp Webbug Group
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