Bug 550269 - [win32] No longer able to use an external class folderI20190823-0840

build path entry using a UNC path

Don't mark absolute paths without device segment on Windows as relative.

Absolute Windows paths without device are possible if they are UNC -
based (starts with two leading back slashes like \\server\folder).

Change-Id: I48d8b22576b08cd66b1e2b2c18f74fb24de87fb8
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>

1 files changed, 3 insertions, 2 deletions

diff --git a/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/ExternalFoldersManager.java b/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/ExternalFoldersManager.java
index e2ccdb1446..e184a40337 100644
--- a/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/ExternalFoldersManager.java
+++ b/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/ExternalFoldersManager.java
@@ -146,12 +146,13 @@ public class ExternalFoldersManager {
 		if (externalPath == null || externalPath.isEmpty()) {
 			return false;
 		}
-		
+
 		JavaModelManager manager = JavaModelManager.getJavaModelManager();
 		if (manager.isExternalFile(externalPath) || manager.isAssumedExternalFile(externalPath)) {
 			return false;
 		}
-		if (!externalPath.isAbsolute() || (WINDOWS && externalPath.getDevice() == null)) {
+		if (!externalPath.isAbsolute()
+				|| (WINDOWS && (externalPath.getDevice() == null && !externalPath.isUNC()))) {
 			// can be only project relative path
 			return false;
 		}