microsoft / microsoft/vscode-java-debug

Breakpoint on outer loop won't stop when using Resume (F5) after breaking once

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@testforstephen 已经在做这个了。

开始于 2023年11月15日。

ai-triaged breakpoint bug compile
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描述

When you put a breakpoint on a outer while loop in a method, the debugger break only once instead of for each loop executed. Also, a loop in a if won't work correctly. But if you have an inner loop (loop in a loop), the breakpoint work as expected, so the debugger break after each execution of the inner loop.

Environment
  • Operating System: Windows 10
  • JDK version: 17.0.8
  • Visual Studio Code version: 1.83.1
  • Java extension version: 1.24.0
  • Java Debugger extension version: 0.55.0
Steps To Reproduce

Using this code:
package sandbox;

public class At09Ex05 {
public static void main(String[] args) {
int nb1, nb2, som1, som2;

	som1 = nb1 = 17;
	som2 = nb2 = 7;
	while (som1 != som2) {
		while (som1 < som2) {
			som1 += nb1;
		}
		while (som2 < som1) {
			som2 += nb2;
		}
	}
	System.out.println("Le PPCM de " + nb1 + " et " + nb2 + " est " + som1);
}

}

  1. Place a breakpoint on line : while (som1 != som2) {
  2. Run the debugger and the program stop at the breakpoint
  3. Use Resume (F5)
Current Result

The program run until the end when using F5 on the outer loop

Expected Result

Since the loop should execute a few times, Resume (F5) should stop again at the breakpoint after executing the loop.

Additional Informations

If you do the same test with a brepoint on the while (som1 < som2) { , the behaviour is correct.
If you change while (som1 != som2) { for if (som1 != som2) { then the two inner loops have the problem.

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  3. Fork 仓库,在一个分支上完成修改。
  4. 提交 Pull Request,并在描述里引用这个 Issue 编号。

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