Prompt user when switching to a locked workspace in Eclipse

[SougandhS]

This change prompts the user when attempting to switch to a workspace in Eclipse that is currently locked by another instance, preventing Eclipse from restarting into the locked workspace. Previously, if Eclipse restarted with a locked workspace, the workspace lock prompt would appear, and clicking “OK” would exit the application, requiring the user to reopen Eclipse to select an active workspace. With this update, the user is warned before switching, informed about the lock via a dialog, and prevented from restarting into the locked workspace, improving workflow and avoiding unnecessary restarts.

Before :

before.mp4

After :
(commented out the initial development mode check for this video)

after.mp4

[github-actions]

Test Results

 3 018 files  ±0   3 018 suites  ±0   2h 12m 57s ⏱️ - 9m 58s
 8 242 tests ±0   7 993 ✅  - 1  248 💤 ±0  1 ❌ +1 
23 646 runs  ±0  22 854 ✅  - 1  791 💤 ±0  1 ❌ +1 

For more details on these failures, see this check.

Results for commit 41c3dfe. ± Comparison against base commit e15e9bf.

♻️ This comment has been updated with latest results.

[SougandhS]

Hi @iloveeclipse, could you please check this PR when you get some time ?

[iloveeclipse]

I can check on Monday. The idea itself is good.

[BeckerWdf]

would it be possible to bring up the exact same dialog (with the same information) in both situations?

[SougandhS]

would it be possible to bring up the exact same dialog (with the same information) in both situations?

Sure 👍

[SougandhS]

would it be possible to bring up the exact same dialog (with the same information) in both situations?

Updated as suggested

My.Movie.mp4

[SougandhS]

@iloveeclipse Could u please re-check this ?

[iloveeclipse]

I believe M3 is the bad time for changing workspace locking code. Take time, test the change also please with the workspace selection dialog that is shown on Eclipse startup, and if everything will work, it could land in the next release.

[eclipse-platform-bot]

This pull request changes some projects for the first time in this development cycle.
Therefore the following files need a version increment:

bundles/org.eclipse.e4.ui.workbench.swt/META-INF/MANIFEST.MF
bundles/org.eclipse.ui.ide.application/META-INF/MANIFEST.MF
bundles/org.eclipse.ui.ide/META-INF/MANIFEST.MF

An additional commit containing all the necessary changes was pushed to the top of this PR's branch. To obtain these changes (for example if you want to push more changes) either fetch from your fork or apply the git patch.

Git patch

From 4f32a5b6fd95dc2f7684b0f9a9b9faa18cf4b409 Mon Sep 17 00:00:00 2001
From: Eclipse Platform Bot <platform-bot@eclipse.org>
Date: Tue, 2 Dec 2025 04:47:34 +0000
Subject: [PATCH] Version bump(s) for 4.39 stream


diff --git a/bundles/org.eclipse.e4.ui.workbench.swt/META-INF/MANIFEST.MF b/bundles/org.eclipse.e4.ui.workbench.swt/META-INF/MANIFEST.MF
index 8ecfefafc5..653acf36f8 100644
--- a/bundles/org.eclipse.e4.ui.workbench.swt/META-INF/MANIFEST.MF
+++ b/bundles/org.eclipse.e4.ui.workbench.swt/META-INF/MANIFEST.MF
@@ -1,7 +1,7 @@
 Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-SymbolicName: org.eclipse.e4.ui.workbench.swt;singleton:=true
-Bundle-Version: 0.17.1000.qualifier
+Bundle-Version: 0.17.1100.qualifier
 Bundle-Name: %pluginName
 Bundle-Vendor: %providerName
 Bundle-Localization: plugin
diff --git a/bundles/org.eclipse.ui.ide.application/META-INF/MANIFEST.MF b/bundles/org.eclipse.ui.ide.application/META-INF/MANIFEST.MF
index 8e8ed96585..52a3fe6de8 100644
--- a/bundles/org.eclipse.ui.ide.application/META-INF/MANIFEST.MF
+++ b/bundles/org.eclipse.ui.ide.application/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: %Plugin.name
 Bundle-SymbolicName: org.eclipse.ui.ide.application;singleton:=true
-Bundle-Version: 1.5.900.qualifier
+Bundle-Version: 1.5.1000.qualifier
 Bundle-Vendor: %Plugin.providerName
 Bundle-Localization: plugin
 Require-Bundle: org.eclipse.ui.ide;bundle-version="[3.21.0,4.0.0)",
diff --git a/bundles/org.eclipse.ui.ide/META-INF/MANIFEST.MF b/bundles/org.eclipse.ui.ide/META-INF/MANIFEST.MF
index c115a47b5f..0d2916a41c 100644
--- a/bundles/org.eclipse.ui.ide/META-INF/MANIFEST.MF
+++ b/bundles/org.eclipse.ui.ide/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: %Plugin.name
 Bundle-SymbolicName: org.eclipse.ui.ide; singleton:=true
-Bundle-Version: 3.22.800.qualifier
+Bundle-Version: 3.22.900.qualifier
 Bundle-Activator: org.eclipse.ui.internal.ide.IDEWorkbenchPlugin
 Bundle-ActivationPolicy: lazy
 Bundle-Vendor: %Plugin.providerName
-- 
2.51.2

Further information are available in Common Build Issues - Missing version increments.

[SougandhS]

I believe M3 is the bad time for changing workspace locking code. Take time, test the change also please with the workspace selection dialog that is shown on Eclipse startup, and if everything will work, it could land in the next release.

I have tested the change with a new SDK build and is even working with Eclipse startup case