jdk8-mips64-public/langtools: test/tools/javac/7079713/TestCircularClassfile.java@a45d78d26450 (annotated)

test/tools/javac/7079713/TestCircularClassfile.java@a45d78d26450 (annotated)

test/tools/javac/7079713/TestCircularClassfile.java

Thu, 01 Sep 2011 14:35:59 -0700

author: jjh
date: Thu, 01 Sep 2011 14:35:59 -0700
changeset 1075: a45d78d26450
parent 1072: d0257833498e
child 2525: 2eb010b6cb22
permissions: -rw-r--r--

7086071: tools/javac/7079713/TestCircularClassfile.java fails on windows
Summary: delete file before renaming another file to it
Reviewed-by: jjg

 /*
  * Copyright (c) 2011, 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 7079713
  * @summary javac hangs when compiling a class that references a cyclically inherited class
  * @run main TestCircularClassfile
  */
 import java.io.*;
 import java.net.URI;
 import java.util.Arrays;
 import javax.tools.JavaCompiler;
 import javax.tools.JavaFileObject;
 import javax.tools.SimpleJavaFileObject;
 import javax.tools.StandardJavaFileManager;
 import javax.tools.StandardLocation;
 import javax.tools.ToolProvider;
 import com.sun.source.util.JavacTask;
 public class TestCircularClassfile {
     enum SourceKind {
         A_EXTENDS_B("class B {} class A extends B { void m() {} }"),
         B_EXTENDS_A("class A { void m() {} } class B extends A {}");
         String sourceStr;
         private SourceKind(String sourceStr) {
             this.sourceStr = sourceStr;
         }
         SimpleJavaFileObject getSource() {
             return new SimpleJavaFileObject(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE) {
                 @Override
                 public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException {
                     return sourceStr;
                 }
             };
         }
     }
     enum TestKind {
         REPLACE_A("A.class"),
         REPLACE_B("B.class");
         String targetClass;
         private TestKind(String targetClass) {
             this.targetClass = targetClass;
         }
     }
     enum ClientKind {
         METHOD_CALL1("A a = null; a.m();"),
         METHOD_CALL2("B b = null; b.m();"),
         CONSTR_CALL1("new A();"),
         CONSTR_CALL2("new B();"),
         ASSIGN1("A a = null; B b = a;"),
         ASSIGN2("B b = null; A a = b;");
         String mainMethod;
         private ClientKind(String mainMethod) {
             this.mainMethod = mainMethod;
         }
         SimpleJavaFileObject getSource() {
             return new SimpleJavaFileObject(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE) {
                 @Override
                 public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException {
                     return "class Test { public static void main(String[] args) { #M } }"
                             .replace("#M", mainMethod);
                 }
             };
         }
     }
     public static void main(String... args) throws Exception {
         JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
         StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null);
         int count = 0;
         for (SourceKind sk1 : SourceKind.values()) {
             for (SourceKind sk2 : SourceKind.values()) {
                 for (TestKind tk : TestKind.values()) {
                     for (ClientKind ck : ClientKind.values()) {
                         new TestCircularClassfile("sub_"+count++, sk1, sk2, tk, ck).check(comp, fm);
                     }
                 }
             }
         }
     }
     static String workDir = System.getProperty("user.dir");
     String destPath;
     SourceKind sk1;
     SourceKind sk2;
     TestKind tk;
     ClientKind ck;
     TestCircularClassfile(String destPath, SourceKind sk1, SourceKind sk2, TestKind tk, ClientKind ck) {
         this.destPath = destPath;
         this.sk1 = sk1;
         this.sk2 = sk2;
         this.tk = tk;
         this.ck = ck;
     }
     void check(JavaCompiler comp, StandardJavaFileManager fm) throws Exception {
         //step 1: compile first source code in the test subfolder
         File destDir = new File(workDir, destPath); destDir.mkdir();
         //output dir must be set explicitly as we are sharing the fm (see bug 7026941)
         fm.setLocation(javax.tools.StandardLocation.CLASS_OUTPUT, Arrays.asList(destDir));
         JavacTask ct = (JavacTask)comp.getTask(null, fm, null,
                 null, null, Arrays.asList(sk1.getSource()));
         ct.generate();
         //step 2: compile second source code in a temp folder
         File tmpDir = new File(destDir, "tmp"); tmpDir.mkdir();
         //output dir must be set explicitly as we are sharing the fm (see bug 7026941)
         fm.setLocation(javax.tools.StandardLocation.CLASS_OUTPUT, Arrays.asList(tmpDir));
         ct = (JavacTask)comp.getTask(null, fm, null,
                 null, null, Arrays.asList(sk2.getSource()));
         ct.generate();
         //step 3: move a classfile from the temp folder to the test subfolder
         File fileToMove = new File(tmpDir, tk.targetClass);
         File target = new File(destDir, tk.targetClass);
         target.delete();
         boolean success = fileToMove.renameTo(target);
         if (!success) {
             throw new AssertionError("error when moving file " + tk.targetClass);
         }
         //step 4: compile the client class against the classes in the test subfolder
         //input/output dir must be set explicitly as we are sharing the fm (see bug 7026941)
         fm.setLocation(StandardLocation.CLASS_OUTPUT, Arrays.asList(destDir));
         fm.setLocation(StandardLocation.CLASS_PATH, Arrays.asList(destDir));
         ct = (JavacTask)comp.getTask(null, fm, null,
                 null, null, Arrays.asList(ck.getSource()));
         ct.generate();
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

test/tools/javac/7079713/TestCircularClassfile.java@a45d78d26450 (annotated)

test/tools/javac/7079713/TestCircularClassfile.java