# HG changeset patch
# User redestad
# Date 1565604971 -7200
#      Mon Aug 12 12:16:11 2019 +0200
# Node ID 1396f3e66dbb881d1499f3d203b19700db06194c
# Parent  05ff6e27de4569881f9caae2297f990679888a58
8229407: Avoid ConcurrentHashMap resizes during bootstrap
Reviewed-by: alanb

diff --git a/src/java.base/share/classes/jdk/internal/loader/BuiltinClassLoader.java b/src/java.base/share/classes/jdk/internal/loader/BuiltinClassLoader.java
--- a/src/java.base/share/classes/jdk/internal/loader/BuiltinClassLoader.java
+++ b/src/java.base/share/classes/jdk/internal/loader/BuiltinClassLoader.java
@@ -183,7 +183,7 @@
         this.parent = parent;
         this.ucp = ucp;
 
-        this.nameToModule = new ConcurrentHashMap<>();
+        this.nameToModule = new ConcurrentHashMap<>(32);
         this.moduleToReader = new ConcurrentHashMap<>();
     }
 
diff --git a/src/java.base/share/classes/jdk/internal/module/ServicesCatalog.java b/src/java.base/share/classes/jdk/internal/module/ServicesCatalog.java
--- a/src/java.base/share/classes/jdk/internal/module/ServicesCatalog.java
+++ b/src/java.base/share/classes/jdk/internal/module/ServicesCatalog.java
@@ -81,7 +81,7 @@
     }
 
     // service name -> list of providers
-    private final Map<String, List<ServiceProvider>> map = new ConcurrentHashMap<>();
+    private final Map<String, List<ServiceProvider>> map = new ConcurrentHashMap<>(32);
 
     private ServicesCatalog() { }