From e29125ee7b22fcd98eea5999104249feb6c110d7 Mon Sep 17 00:00:00 2001
From: Nikita Skvortsov <nikita.skvortsov@jetbrains.com>
Date: Thu, 17 May 2018 17:36:16 +0300
Subject: [PATCH] do not walk project dependencies if not needed

---
 .../util/resolve/ArtifactQueryResolver.java   | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/plugins/gradle/tooling-extension-impl/src/org/jetbrains/plugins/gradle/tooling/util/resolve/ArtifactQueryResolver.java b/plugins/gradle/tooling-extension-impl/src/org/jetbrains/plugins/gradle/tooling/util/resolve/ArtifactQueryResolver.java
index 0c87f515f771..43f50e560650 100644
--- a/plugins/gradle/tooling-extension-impl/src/org/jetbrains/plugins/gradle/tooling/util/resolve/ArtifactQueryResolver.java
+++ b/plugins/gradle/tooling-extension-impl/src/org/jetbrains/plugins/gradle/tooling/util/resolve/ArtifactQueryResolver.java
@@ -137,15 +137,17 @@ class ArtifactQueryResolver {
       fileDeps.remove(artifact.getFile());
     }
 
-    for (ProjectDependency dep : projectDepsToFilter) {
-      Set<File> depFiles = DependencyResolverImpl.getTargetConfiguration(dep).getAllArtifacts().getFiles().getFiles();
+    if (!fileDeps.isEmpty()) {
+      for (ProjectDependency dep : projectDepsToFilter) {
+        Set<File> depFiles = DependencyResolverImpl.getTargetConfiguration(dep).getAllArtifacts().getFiles().getFiles();
 
-      final Set<File> intersection = new LinkedHashSet<File>(Sets.intersection(fileDeps, depFiles));
-      if (!intersection.isEmpty()) {
-        DefaultFileCollectionDependency fileCollectionDependency = new DefaultFileCollectionDependency(intersection);
-        fileCollectionDependency.setScope(myScope);
-        result.add(fileCollectionDependency);
-        fileDeps.removeAll(intersection);
+        final Set<File> intersection = new LinkedHashSet<File>(Sets.intersection(fileDeps, depFiles));
+        if (!intersection.isEmpty()) {
+          DefaultFileCollectionDependency fileCollectionDependency = new DefaultFileCollectionDependency(intersection);
+          fileCollectionDependency.setScope(myScope);
+          result.add(fileCollectionDependency);
+          fileDeps.removeAll(intersection);
+        }
       }
     }
 
@@ -158,7 +160,6 @@ class ArtifactQueryResolver {
     return result;
   }
 
-
   @NotNull
   protected List<Class<? extends Artifact>> additionalArtifactsTypes() {
     List<Class<? extends Artifact>> artifactTypes = new ArrayList<Class<? extends Artifact>>();