8187443: Forest Consolidation: Move files to unified layout

Reviewed-by: darcy, ihse
2025-08-27 23:04:50 +02:00 · 2017-09-12 19:03:39 +02:00 · 2017-09-12 19:03:39 +02:00 · 3789983e89
commit 3789983e89
parent 270fe13182
56923 changed files with 3 additions and 15727 deletions
--- a/test/langtools/tools/javac/StringConcat/TestIndyStringConcat.java
+++ b/test/langtools/tools/javac/StringConcat/TestIndyStringConcat.java
@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2015, 2016, 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.
+ */
+
+import com.sun.tools.classfile.*;
+import com.sun.tools.classfile.BootstrapMethods_attribute.BootstrapMethodSpecifier;
+import com.sun.tools.classfile.ConstantPool.CONSTANT_InvokeDynamic_info;
+import com.sun.tools.classfile.ConstantPool.CONSTANT_MethodHandle_info;
+
+import java.io.File;
+
+/*
+ * @test
+ * @bug     8148483 8151516 8151223
+ * @summary Test that StringConcat is working for JDK >= 9
+ * @modules jdk.jdeps/com.sun.tools.classfile
+ *
+ * @clean TestIndyStringConcat*
+ * @compile -source 6 -target 6 TestIndyStringConcat.java
+ * @run main TestIndyStringConcat false
+ *
+ * @clean TestIndyStringConcat*
+ * @compile -source 7 -target 7 TestIndyStringConcat.java
+ * @run main TestIndyStringConcat false
+ *
+ * @clean TestIndyStringConcat*
+ * @compile -source 8 -target 8 TestIndyStringConcat.java
+ * @run main TestIndyStringConcat false
+ *
+ * @clean TestIndyStringConcat*
+ * @compile -XDstringConcat=inline -source 9 -target 9 TestIndyStringConcat.java
+ * @run main TestIndyStringConcat false
+ *
+ * @clean TestIndyStringConcat*
+ * @compile -XDstringConcat=indy -source 9 -target 9 TestIndyStringConcat.java
+ * @run main TestIndyStringConcat true
+ *
+ * @clean TestIndyStringConcat*
+ * @compile -XDstringConcat=indyWithConstants -source 9 -target 9 TestIndyStringConcat.java
+ * @run main TestIndyStringConcat true
+ */
+public class TestIndyStringConcat {
+
+    static String other;
+
+    public static String test() {
+        return "Foo" + other;
+    }
+
+    public static void main(String[] args) throws Exception {
+        boolean expected = Boolean.valueOf(args[0]);
+        boolean actual = hasStringConcatFactoryCall("test");
+        if (expected != actual) {
+            throw new AssertionError("expected = " + expected + ", actual = " + actual);
+        }
+    }
+
+    public static boolean hasStringConcatFactoryCall(String methodName) throws Exception {
+        ClassFile classFile = ClassFile.read(new File(System.getProperty("test.classes", "."),
+                TestIndyStringConcat.class.getName() + ".class"));
+        ConstantPool constantPool = classFile.constant_pool;
+
+        BootstrapMethods_attribute bsm_attr =
+                (BootstrapMethods_attribute)classFile
+                        .getAttribute(Attribute.BootstrapMethods);
+
+        for (Method method : classFile.methods) {
+            if (method.getName(constantPool).equals(methodName)) {
+                Code_attribute code = (Code_attribute) method.attributes
+                        .get(Attribute.Code);
+                for (Instruction i : code.getInstructions()) {
+                    if (i.getOpcode() == Opcode.INVOKEDYNAMIC) {
+                        CONSTANT_InvokeDynamic_info indyInfo =
+                                (CONSTANT_InvokeDynamic_info) constantPool.get(i.getUnsignedShort(1));
+
+                        BootstrapMethodSpecifier bsmSpec =
+                                bsm_attr.bootstrap_method_specifiers[indyInfo.bootstrap_method_attr_index];
+
+                        CONSTANT_MethodHandle_info bsmInfo =
+                                (CONSTANT_MethodHandle_info) constantPool.get(bsmSpec.bootstrap_method_ref);
+
+                        if (bsmInfo.getCPRefInfo().getClassName().equals("java/lang/invoke/StringConcatFactory")) {
+                            return true;
+                        }
+                    }
+                }
+            }
+        }
+        return false;
+    }
+
+}