Get rid of old Harmony Services cache

Each java.security.Provider.Service has its own cache, so there is not a
lot of benefit to having another cache of the caches. In fact, this
makes adding a new provider a huge hit. This change makes adding a new
empty provider go from ~5080 microseconds to 73 microseconds.

(cherry picked from commit cc4791ad77128039c93d4c03b582d4dc397e6a02)

Bug: 21159204
Change-Id: Ib23032f8cb0def79367a321b48241b6cc94de6b0

1 files changed, 50 insertions, 0 deletions

diff --git a/benchmarks/src/benchmarks/regression/ProviderBenchmark.java b/benchmarks/src/benchmarks/regression/ProviderBenchmark.java
new file mode 100644
index 0000000..649aa01
--- /dev/null
+++ b/benchmarks/src/benchmarks/regression/ProviderBenchmark.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package benchmarks.regression;
+
+import java.security.Provider;
+import java.security.Security;
+import javax.crypto.Cipher;
+
+import com.google.caliper.Param;
+import com.google.caliper.SimpleBenchmark;
+import javax.net.ssl.SSLSocketFactory;
+
+public class ProviderBenchmark extends SimpleBenchmark {
+    public void timeStableProviders(int reps) throws Exception {
+        for (int i = 0; i < reps; ++i) {
+            Cipher c = Cipher.getInstance("RSA");
+        }
+    }
+
+    public void timeWithNewProvider(int reps) throws Exception {
+        for (int i = 0; i < reps; ++i) {
+            Security.addProvider(new MockProvider());
+            try {
+                Cipher c = Cipher.getInstance("RSA");
+            } finally {
+                Security.removeProvider("Mock");
+            }
+        }
+    }
+
+    private static class MockProvider extends Provider {
+        public MockProvider() {
+            super("Mock", 1.0, "Mock me!");
+        }
+    }
+}