238 lines
8.8 KiB
Java
238 lines
8.8 KiB
Java
/*
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* Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 7003595
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* @summary IncompatibleClassChangeError with unreferenced local class with subclass
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* @enablePreview
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* @modules java.base/jdk.internal.classfile.impl
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* jdk.compiler/com.sun.tools.javac.api
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* jdk.compiler/com.sun.tools.javac.file
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*/
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import com.sun.source.util.JavacTask;
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import java.lang.classfile.*;
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import java.lang.classfile.attribute.*;
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import com.sun.tools.javac.api.JavacTool;
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import java.io.File;
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import java.net.URI;
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import java.util.Arrays;
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import java.util.ArrayList;
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import javax.tools.JavaCompiler;
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import javax.tools.JavaFileObject;
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import javax.tools.SimpleJavaFileObject;
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import javax.tools.StandardJavaFileManager;
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import javax.tools.ToolProvider;
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public class T7003595 {
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/** global decls ***/
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//statistics
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static int checkCount = 0;
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enum ClassKind {
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NESTED("static class #N { #B }", "$", true),
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INNER("class #N { #B }", "$", false),
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LOCAL_REF("void test() { class #N { #B }; new #N(); }", "$1", false),
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LOCAL_NOREF("void test() { class #N { #B }; }", "$1", false),
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ANON("void test() { new Object() { #B }; }", "$1", false),
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NONE("", "", false);
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String memberInnerStr;
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String sep;
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boolean staticAllowed;
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private ClassKind(String memberInnerStr, String sep, boolean staticAllowed) {
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this.memberInnerStr = memberInnerStr;
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this.sep = sep;
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this.staticAllowed = staticAllowed;
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}
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String getSource(String className, String outerName, String nested) {
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return memberInnerStr.replaceAll("#O", outerName).
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replaceAll("#N", className).replaceAll("#B", nested);
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}
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static String getClassfileName(String[] names, ClassKind[] outerKinds, int pos) {
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System.out.println(" pos = " + pos + " kind = " + outerKinds[pos] + " sep = " + outerKinds[pos].sep);
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String name = outerKinds[pos] != ANON ?
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names[pos] : "";
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if (pos == 0) {
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return "Test" + outerKinds[pos].sep + name;
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} else {
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String outerStr = getClassfileName(names, outerKinds, pos - 1);
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return outerStr + outerKinds[pos].sep + name;
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}
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}
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boolean isAllowed(ClassKind nestedKind) {
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return nestedKind != NESTED ||
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staticAllowed;
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}
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}
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enum LocalInnerClass {
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LOCAL_REF("class L {}; new L();", "Test$1L"),
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LOCAL_NOREF("class L {};", "Test$1L"),
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ANON("new Object() {};", "Test$1"),
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NONE("", "");
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String localInnerStr;
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String canonicalInnerStr;
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private LocalInnerClass(String localInnerStr, String canonicalInnerStr) {
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this.localInnerStr = localInnerStr;
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this.canonicalInnerStr = canonicalInnerStr;
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}
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}
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public static void main(String... args) throws Exception {
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// Create a single file manager and reuse it for each compile to save time.
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try (StandardJavaFileManager fm = JavacTool.create().getStandardFileManager(null, null, null)) {
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for (ClassKind ck1 : ClassKind.values()) {
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String cname1 = "C1";
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for (ClassKind ck2 : ClassKind.values()) {
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if (!ck1.isAllowed(ck2)) continue;
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String cname2 = "C2";
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for (ClassKind ck3 : ClassKind.values()) {
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if (!ck2.isAllowed(ck3)) continue;
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String cname3 = "C3";
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new T7003595(fm, new ClassKind[] {ck1, ck2, ck3}, new String[] { cname1, cname2, cname3 }).compileAndCheck();
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}
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}
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}
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}
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System.out.println("Total checks made: " + checkCount);
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}
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/** instance decls **/
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ClassKind[] cks;
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String[] cnames;
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StandardJavaFileManager fm;
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T7003595(StandardJavaFileManager fm, ClassKind[] cks, String[] cnames) {
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this.fm = fm;
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this.cks = cks;
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this.cnames = cnames;
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}
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void compileAndCheck() throws Exception {
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final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
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JavaSource source = new JavaSource();
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JavacTask ct = (JavacTask)tool.getTask(null, fm, null,
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null, null, Arrays.asList(source));
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ct.call();
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verifyBytecode(source);
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}
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void verifyBytecode(JavaSource source) {
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for (int i = 0; i < 3 ; i ++) {
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if (cks[i] == ClassKind.NONE) break;
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checkCount++;
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String filename = cks[i].getClassfileName(cnames, cks, i);
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File compiledTest = new File(filename + ".class");
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try {
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ClassModel cf = ClassFile.of().parse(compiledTest.toPath());
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if (cf == null) {
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throw new Error("Classfile not found: " + filename);
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}
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InnerClassesAttribute innerClasses = cf.findAttribute(Attributes.innerClasses()).orElse(null);
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ArrayList<String> foundInnerSig = new ArrayList<>();
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if (innerClasses != null) {
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for (InnerClassInfo info : innerClasses.classes()) {
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String foundSig = info.innerClass().asInternalName();
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foundInnerSig.add(foundSig);
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}
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}
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ArrayList<String> expectedInnerSig = new ArrayList<>();
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//add inner class (if any)
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if (i < 2 && cks[i + 1] != ClassKind.NONE) {
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expectedInnerSig.add(cks[i + 1].getClassfileName(cnames, cks, i + 1));
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}
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//add inner classes
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for (int j = 0 ; j != i + 1 && j < 3; j++) {
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expectedInnerSig.add(cks[j].getClassfileName(cnames, cks, j));
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}
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if (expectedInnerSig.size() != foundInnerSig.size()) {
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throw new Error("InnerClasses attribute for " + cnames[i] + " has wrong size\n" +
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"expected " + expectedInnerSig.size() + "\n" +
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"found " + (innerClasses == null? 0: innerClasses.classes().size()) + "\n" +
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source);
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}
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for (String foundSig : foundInnerSig) {
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if (!expectedInnerSig.contains(foundSig)) {
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throw new Error("InnerClasses attribute for " + cnames[i] + " has unexpected signature: " +
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foundSig + "\n" + source + "\n" + expectedInnerSig);
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}
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}
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for (String expectedSig : expectedInnerSig) {
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if (!foundInnerSig.contains(expectedSig)) {
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throw new Error("InnerClasses attribute for " + cnames[i] + " does not contain expected signature: " +
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expectedSig + "\n" + source);
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}
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}
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} catch (Exception e) {
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e.printStackTrace();
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throw new Error("error reading " + compiledTest +": " + e);
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}
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}
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}
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class JavaSource extends SimpleJavaFileObject {
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static final String source_template = "class Test { #C }";
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String source;
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public JavaSource() {
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super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
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String c3 = cks[2].getSource(cnames[2], cnames[1], "");
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String c2 = cks[1].getSource(cnames[1], cnames[0], c3);
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String c1 = cks[0].getSource(cnames[0], "Test", c2);
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source = source_template.replace("#C", c1);
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}
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@Override
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public String toString() {
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return source;
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}
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@Override
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public CharSequence getCharContent(boolean ignoreEncodingErrors) {
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return source;
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}
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}
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}
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