8136421: JEP 243: Java-Level JVM Compiler Interface

Reviewed-by: ihse, alanb, roland, coleenp, iveresov, kvn, kbarrett

hotspot/test/compiler/jvmci/compilerToVM/GetClassInitializerTest.java

@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2015, 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 8136421
+ * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9") & os.arch != "aarch64"
+ * @library / /testlibrary /../../test/lib
+ * @compile ../common/CompilerToVMHelper.java
+ * @build compiler.jvmci.compilerToVM.GetClassInitializerTest
+ * @run main ClassFileInstaller jdk.vm.ci.hotspot.CompilerToVMHelper
+ * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockExperimentalVMOptions
+ *     -XX:+EnableJVMCI compiler.jvmci.compilerToVM.GetClassInitializerTest
+ */
+
+package compiler.jvmci.compilerToVM;
+
+import compiler.jvmci.common.testcases.AbstractClass;
+import compiler.jvmci.common.testcases.AbstractClassExtender;
+import compiler.jvmci.common.testcases.DoNotExtendClass;
+import compiler.jvmci.common.testcases.MultipleImplementersInterfaceExtender;
+import compiler.jvmci.common.testcases.SingleImplementer;
+import compiler.jvmci.common.testcases.SingleImplementerInterface;
+import java.util.HashSet;
+import java.util.Set;
+import jdk.vm.ci.hotspot.CompilerToVMHelper;
+import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethodImpl;
+import jdk.vm.ci.hotspot.HotSpotResolvedObjectTypeImpl;
+import jdk.test.lib.Asserts;
+import jdk.test.lib.Utils;
+
+public class GetClassInitializerTest {
+
+    public static void main(String args[]) {
+        GetClassInitializerTest test = new GetClassInitializerTest();
+        for (TestCase tcase : createTestCases()) {
+            test.runTest(tcase);
+        }
+    }
+
+    private static Set<TestCase> createTestCases() {
+        Set<TestCase> result = new HashSet<>();
+        // a simple class with initializer
+        result.add(new TestCase(SingleImplementer.class, true));
+        // an interface with initializer
+        result.add(new TestCase(SingleImplementerInterface.class, true));
+        // an abstract class with initializer
+        result.add(new TestCase(AbstractClass.class, true));
+        // a class without initializer, extending class with initializer
+        result.add(new TestCase(AbstractClassExtender.class, false));
+        // an interface without initializer
+        result.add(new TestCase(MultipleImplementersInterfaceExtender.class, false));
+        // a class without initializer
+        result.add(new TestCase(DoNotExtendClass.class, false));
+        return result;
+    }
+
+    private void runTest(TestCase tcase) {
+        System.out.println(tcase);
+        String className = tcase.holder.getName();
+        HotSpotResolvedObjectTypeImpl resolvedClazz = CompilerToVMHelper
+                .lookupType(Utils.toJVMTypeSignature(tcase.holder),
+                        getClass(), /* resolve = */ true);
+        HotSpotResolvedJavaMethodImpl initializer = CompilerToVMHelper
+                .getClassInitializer(resolvedClazz);
+        if (tcase.isPositive) {
+            Asserts.assertNotNull(initializer, "Couldn't get initializer for "
+                    + className);
+            Asserts.assertEQ(initializer.getName(), "<clinit>",
+                    "Unexpected initializer name for " + className);
+        } else {
+            Asserts.assertNull(initializer, "Unexpected: found initializer for "
+                    + className);
+        }
+    }
+
+    private static class TestCase {
+        public final Class<?> holder;
+        public final boolean isPositive;
+
+        public TestCase(Class<?> clazz, boolean isPositive) {
+            this.holder = clazz;
+            this.isPositive = isPositive;
+        }
+
+        @Override
+        public String toString() {
+            return "CASE: clazz=" + holder.getName()
+                    + ", isPositive=" + isPositive;
+        }
+    }
+}