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