1 /*
   2  * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 package org.graalvm.compiler.hotspot.test;
  24 
  25 import org.junit.Test;
  26 
  27 import org.graalvm.compiler.core.test.GraalCompilerTest;
  28 import org.graalvm.compiler.nodes.StructuredGraph;
  29 import org.graalvm.compiler.nodes.extended.ForeignCallNode;
  30 import org.graalvm.compiler.options.OptionValues;
  31 
  32 import jdk.vm.ci.code.InstalledCode;
  33 import jdk.vm.ci.meta.ResolvedJavaMethod;
  34 
  35 public class ExplicitExceptionTest extends GraalCompilerTest {
  36 
  37     private int expectedForeignCallCount;
  38 
  39     @Override
  40     protected InstalledCode getCode(ResolvedJavaMethod method, StructuredGraph graph, boolean forceCompile, boolean installAsDefault, OptionValues options) {
  41         InstalledCode installedCode = super.getCode(method, graph, forceCompile, installAsDefault, options);
  42         assertDeepEquals(expectedForeignCallCount, lastCompiledGraph.getNodes().filter(ForeignCallNode.class).count());
  43         return installedCode;
  44     }
  45 
  46     public static int testAIOOBESnippet(int[] array) {
  47         return array[10];
  48     }
  49 
  50     @Test
  51     public void testAIOOBE() {
  52         int[] array = new int[4];
  53         for (int i = 0; i < 10000; i++) {
  54             try {
  55                 testAIOOBESnippet(array);
  56             } catch (ArrayIndexOutOfBoundsException e) {
  57                 // nothing to do
  58             }
  59         }
  60         expectedForeignCallCount = 2;
  61         test("testAIOOBESnippet", array);
  62     }
  63 
  64     public static int testNPEArraySnippet(int[] array) {
  65         return array[10];
  66     }
  67 
  68     @Test
  69     public void testNPEArray() {
  70         int[] array = null;
  71         for (int i = 0; i < 10000; i++) {
  72             try {
  73                 testNPEArraySnippet(array);
  74             } catch (NullPointerException e) {
  75                 // nothing to do
  76             }
  77         }
  78         expectedForeignCallCount = 2;
  79         test("testNPEArraySnippet", array);
  80     }
  81 
  82     private static class TestClass {
  83         int field;
  84     }
  85 
  86     public static int testNPESnippet(TestClass obj) {
  87         return obj.field;
  88     }
  89 
  90     @SuppressWarnings("unused")
  91     @Test
  92     public void testNPE() {
  93         new TestClass();
  94         TestClass obj = null;
  95         for (int i = 0; i < 10000; i++) {
  96             try {
  97                 testNPESnippet(obj);
  98             } catch (NullPointerException e) {
  99                 // nothing to do
 100             }
 101         }
 102         expectedForeignCallCount = 1;
 103         test("testNPESnippet", obj);
 104     }
 105 
 106 }