eclipse-theia/theia

Running a Java program do not start initially when using vscjava.vscode-java-debug-0.22.0.vsix plugin

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#6,462 opened on Oct 29, 2019

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bughelp wantedjavavscode

Description

Description

Try to run a Java application with redhat.java-0.51.0.vsix, but the run application does not execute until I first open the JAVA file in the editor

Reproduction Steps

Open a workspace with java file Right click on the Java file -> Run --> no output of the execution Open the Java file in the editor -> look at the bottom of the front-end, the compilation and LSP kicks in -> Right click on the Java file again -> Run --> the execution is done, (for as many time you selected the "RUN" command before) and the execution output is shown in "Debug" console view Note: try it in VSCode with the same workspace and when I selected the "Run" command the first time, it executed it

OS and Theia version: Theia: master

Configuration: package.json: remove @theia/java
Plugins installed:
    redhat.java-051.0.vsix
    vscjava.vscode-java-debug-0.22.0.vsix
    vscode-java-dependency-0.6.0.vsix
    vscode-java-test-0.20.0.vsix

Diagnostics: JavaRunNoFileOpen

Contributor guide

Tech stack
javatypescript
Domain
developer experience
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Java development basicsVS Code extension activation events
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
Investigate the order of plugin activation in Theia's extension host. The issue suggests that the Java debug plugin only initializes after the Java file is opened in the editor. Check the plugin activation events (onLanguage, onCommand) and see if the debug plugin's activation is tied to file open. Look at the redhat.java plugin's activation events and how the debug plugin depends on it. Also check the Theia source code for extension host plugin lifecycle (packages/plugin ext). Ensure that the debug plugin's contributions are registered upon workspace startup, not just when a file is opened.