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static variable are not updated in the variable view.

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
java, typescript
Domain
developer-experience, devtools

Research direction

Reproduce the issue with the Dog and App examples, then inspect how the Java debugger populates the Variables View's Local section and handles edits made through it. Compare that display with the watch value after changing d2; done means all instances show the current shared static name automatically or after an available refresh action.

Written by the indexing model from the issue text.

Description

ai-triaged bug enhancement variables

The static variables of an instance of a class are not updated in the variable view if another instance is changed.

Environment
  • Operating System: Windows 10
  • JDK version: JDK 1.8.311
  • Visual Studio Code version: 1.78.2
  • Java extension version: Language Support for Java(TM) by Red Hat v1.18.0
  • Java Debugger extension version: 0.50.0
Steps To Reproduce
  1. Create a simple class with a static variable as:
public class Dog {
    private static String name;
    private int age;

    public Dog(String name, int age) {
        Dog.name = name;
        this.age = age;
    }

    public static String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }

}
  1. In the main create 3 instance of class Dog :
public class App {
    public static void main(String[] args) throws Exception {
        Dog d1 = new Dog("Medor", 3);
        Dog d2 = new Dog("Rex", 5);
        Dog d3 = new Dog("Fifi", 1);

        System.out.println("Dog 1 name : " + d1.getName());
    }
}
  1. Put a break point on the System.out.println
  2. Run in debug mode and check in the Variables View - Local if all dog have the same name.
  3. Edit the name of d2
Current Result

Only the name of d2 is changed and no possibility to update the name of the other dog. We can see if we add a watch that the name of the other dog changes correctly but not in the Variable view.

Expected Result

In the Variable view the name of all instance of dog should be updated, automatically or with a refresh button

Additional Informations

Very important for teachers to explains what happen with static variables.

Dominant language
TypeScript
Stars
591
Forks
429
Avg merge
1d 9h
Merged PRs (30d)
19

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