hotspot/test/runtime/SharedArchiveFile/SharedSymbolTableBucketSize.java
changeset 28363 047115468f16
child 29678 dd2f3932c21e
child 30123 7a8b6bd85e24
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/SharedArchiveFile/SharedSymbolTableBucketSize.java	Wed Dec 17 23:34:52 2014 -0500
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8059510
+ * @summary Test SharedSymbolTableBucketSize option
+ * @library /testlibrary
+ */
+
+import com.oracle.java.testlibrary.*;
+
+public class SharedSymbolTableBucketSize {
+    public static void main(String[] args) throws Exception {
+        int bucket_size = 8;
+        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+            "-Xshare:dump", "-XX:+PrintSharedSpaces",
+            "-XX:+UnlockDiagnosticVMOptions",
+            "-XX:SharedArchiveFile=./sample.jsa",
+            "-XX:SharedSymbolTableBucketSize=" + Integer.valueOf(bucket_size));
+        OutputAnalyzer output = new OutputAnalyzer(pb.start());
+        output.shouldContain("Loading classes to share");
+        output.shouldHaveExitValue(0);
+
+        String s = output.firstMatch("Average bucket size     : .*");
+        Float f = Float.parseFloat(s.substring(25));
+        int size = Math.round(f);
+        if (size != bucket_size) {
+          throw new Exception("FAILED: incorrect bucket size " + size +
+                              ", expect " + bucket_size);
+        }
+
+
+        // Invalid SharedSymbolTableBucketSize input
+        String input[] = {"-XX:SharedSymbolTableBucketSize=-1",
+                          "-XX:SharedSymbolTableBucketSize=2.5"};
+        for (int i = 0; i < input.length; i++) {
+          pb = ProcessTools.createJavaProcessBuilder(
+               "-Xshare:dump", "-XX:+PrintSharedSpaces",
+               "-XX:+UnlockDiagnosticVMOptions",
+               "-XX:SharedArchiveFile=./sample.jsa",
+               input[i]);
+          output = new OutputAnalyzer(pb.start());
+          output.shouldContain("Improperly specified VM option");
+      }
+  }
+}