From 880caa4b0a7ca28dc95e4e0fd3a7614000ab5c8c Mon Sep 17 00:00:00 2001
From: Michael Keppler <Michael.Keppler@gmx.de>
Date: Sat, 30 Nov 2024 12:31:43 +0100
Subject: [PATCH] reduce file access

At least on Windows the repeated invocation of file.exists takes a huge
amount of time.
---
 .../tycho/core/osgitools/DefaultArtifactDescriptor.java      | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tycho-core/src/main/java/org/eclipse/tycho/core/osgitools/DefaultArtifactDescriptor.java b/tycho-core/src/main/java/org/eclipse/tycho/core/osgitools/DefaultArtifactDescriptor.java
index 3c0fc4c62f..ad27d20265 100644
--- a/tycho-core/src/main/java/org/eclipse/tycho/core/osgitools/DefaultArtifactDescriptor.java
+++ b/tycho-core/src/main/java/org/eclipse/tycho/core/osgitools/DefaultArtifactDescriptor.java
@@ -68,10 +68,13 @@ public File getLocation(boolean fetch) {
         if (projectLocation != null) {
             return projectLocation;
         }
-        if (fetch && locationSupplier != null && (location == null || !location.exists())) {
+        if (fetch && locationSupplier != null && location == null) {
             File file = locationSupplier.apply(this);
             if (file != null) {
                 location = ArtifactCollection.normalizeLocation(file);
+                if (!location.exists()) {
+                    location = null;
+                }
             }
         }
         return location;