--- old/src/jdk.compiler/share/classes/com/sun/tools/javac/code/Symbol.java 2019-06-06 14:48:30.685284200 -0700 +++ new/src/jdk.compiler/share/classes/com/sun/tools/javac/code/Symbol.java 2019-06-06 14:48:30.365284200 -0700 @@ -2063,7 +2063,8 @@ @DefinedBy(Api.LANGUAGE_MODEL) public Type getReceiverType() { - return asType().getReceiverType(); + Type result = asType().getReceiverType(); + return (result == null) ? Type.noType : result; } @DefinedBy(Api.LANGUAGE_MODEL) --- /dev/null 2019-06-06 10:39:25.248000000 -0700 +++ new/test/langtools/tools/javac/processing/model/element/TestExecutableReceiverType.java 2019-06-06 14:48:30.901284200 -0700 @@ -0,0 +1,112 @@ +/* + * Copyright (c) 2013, 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 8222369 + * @summary Test behavior of ExecutableElement.getReceiverType + * @library /tools/javac/lib + * @build JavacTestingAbstractProcessor TestExecutableReceiverType + * @compile -processor TestExecutableReceiverType -proc:only TestExecutableReceiverType.java + */ + +import java.util.Set; +import java.lang.annotation.*; +import javax.annotation.processing.*; +import javax.lang.model.element.*; +import javax.lang.model.type.*; +import javax.lang.model.util.*; +import static javax.tools.Diagnostic.Kind.*; + +/** + * Verify that proper type objects are returned from ExecutableElement.getReceiverType + */ +public class TestExecutableReceiverType extends JavacTestingAbstractProcessor { + public boolean process(Set annotations, + RoundEnvironment roundEnv) { + if (!roundEnv.processingOver()) { + int count = 0; + count += testType(elements.getTypeElement("MethodHost")); + count += testType(elements.getTypeElement("MethodHost.Nested")); + + if (count == 0) { + messager.printMessage(ERROR, "No executables visited."); + } + } + return true; + } + + int testType(TypeElement typeElement) { + int count = 0; + for (ExecutableElement executable : + ElementFilter.constructorsIn(typeElement.getEnclosedElements())) { + count += testExecutable(executable); + } + + for (ExecutableElement executable : + ElementFilter.methodsIn(typeElement.getEnclosedElements())) { + count += testExecutable(executable); + } + return count; + } + + int testExecutable(ExecutableElement executable) { + TypeKind expectedKind = executable.getAnnotation(ReceiverTypeKind.class).value(); + TypeKind actualKind = executable.getReceiverType().getKind(); + + if (actualKind != expectedKind) { + messager.printMessage(ERROR, + String.format("Unexpected TypeKind on receiver of %s:" + + " expected %s\t got %s%n", + executable, expectedKind, actualKind)); + } + return 1; + } +} + +@Retention(RetentionPolicy.RUNTIME) +@interface ReceiverTypeKind { + TypeKind value(); +} + +/** + * Class to host various methods, etc. + */ +class MethodHost { + @ReceiverTypeKind(TypeKind.NONE) + public MethodHost() {} + + @ReceiverTypeKind(TypeKind.NONE) + public static void foo() {return;} + + @ReceiverTypeKind(TypeKind.NONE) + public void bar() {return;} + + @ReceiverTypeKind(TypeKind.DECLARED) + public void quux(MethodHost this) {return;} + + private class Nested { + @ReceiverTypeKind(TypeKind.DECLARED) + public Nested(MethodHost MethodHost.this) {} + } +}