From 1e85483efea100a33df51734371a370591134d05 Mon Sep 17 00:00:00 2001
From: David Pursehouse <dpursehouse@collab.net>
Date: Tue, 20 Feb 2018 16:39:35 +0900
Subject: [PATCH] SiteLibraryLoaderUtil: Add debug log of the loaded libraries

Change-Id: Ia0b6ba082db9992e5a8c307c262b7b97ff5238e4
---
 .../com/google/gerrit/common/SiteLibraryLoaderUtil.java  | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/gerrit-common/src/main/java/com/google/gerrit/common/SiteLibraryLoaderUtil.java b/gerrit-common/src/main/java/com/google/gerrit/common/SiteLibraryLoaderUtil.java
index 538565a202..e8fa896662 100644
--- a/gerrit-common/src/main/java/com/google/gerrit/common/SiteLibraryLoaderUtil.java
+++ b/gerrit-common/src/main/java/com/google/gerrit/common/SiteLibraryLoaderUtil.java
@@ -15,6 +15,7 @@
 package com.google.gerrit.common;
 
 import static com.google.gerrit.common.FileUtil.lastModified;
+import static java.util.stream.Collectors.joining;
 
 import com.google.common.annotations.GwtIncompatible;
 import com.google.common.collect.ComparisonChain;
@@ -35,12 +36,18 @@ public final class SiteLibraryLoaderUtil {
 
   public static void loadSiteLib(Path libdir) {
     try {
-      IoUtil.loadJARs(listJars(libdir));
+      List<Path> jars = listJars(libdir);
+      IoUtil.loadJARs(jars);
+      log.debug("Loaded site libraries: {}", jarList(jars));
     } catch (IOException e) {
       log.error("Error scanning lib directory " + libdir, e);
     }
   }
 
+  private static String jarList(List<Path> jars) {
+    return jars.stream().map(p -> p.getFileName().toString()).collect(joining(","));
+  }
+
   public static List<Path> listJars(Path dir) throws IOException {
     DirectoryStream.Filter<Path> filter =
         new DirectoryStream.Filter<Path>() {