jdk8-mips64-public/langtools: test/tools/javac/NoStringToLower.java@7909abb85562 (annotated)

test/tools/javac/NoStringToLower.java@7909abb85562 (annotated)

test/tools/javac/NoStringToLower.java

Wed, 14 Nov 2018 10:18:25 -0800

author: diazhou
date: Wed, 14 Nov 2018 10:18:25 -0800
changeset 3762: 7909abb85562
parent 2414: 17ce329d7bd0
child 2525: 2eb010b6cb22
permissions: -rw-r--r--

Added tag jdk8u201-b04 for changeset a7f48b9dfb82

 /*
  * Copyright (c) 2013, 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 8029800
  * @summary String.toLowerCase()/toUpperCase is generally dangerous, check it is not used in langtools
  */
 import java.io.*;
 import java.util.*;
 import javax.tools.*;
 import com.sun.tools.classfile.*;
 import com.sun.tools.classfile.ConstantPool.CONSTANT_Methodref_info;
 public class NoStringToLower {
     public static void main(String... args) throws Exception {
         NoStringToLower c = new NoStringToLower();
         if (c.run(args))
             return;
         if (is_jtreg())
             throw new Exception(c.errors + " errors occurred");
         else
             System.exit(1);
     }
     static boolean is_jtreg() {
         return (System.getProperty("test.src") != null);
     }
     /**
      * Main entry point.
      */
     boolean run(String... args) throws Exception {
         JavaCompiler c = ToolProvider.getSystemJavaCompiler();
         JavaFileManager fm = c.getStandardFileManager(null, null, null);
         JavaFileManager.Location javacLoc = findJavacLocation(fm);
         String[] pkgs = {
             "javax.annotation.processing",
             "javax.lang.model",
             "javax.tools",
             "com.sun.source",
             "com.sun.tools.classfile",
             "com.sun.tools.doclet",
             "com.sun.tools.doclint",
             "com.sun.tools.javac",
             "com.sun.tools.javadoc",
             "com.sun.tools.javah",
             "com.sun.tools.javap",
             "com.sun.tools.jdeps",
             "com.sun.tools.sjavac"
         };
         for (String pkg: pkgs) {
             for (JavaFileObject fo: fm.list(javacLoc,
                     pkg, EnumSet.of(JavaFileObject.Kind.CLASS), true)) {
                 scan(fo);
             }
         }
         return (errors == 0);
     }
     // depending on how the test is run, javac may be on bootclasspath or classpath
     JavaFileManager.Location findJavacLocation(JavaFileManager fm) {
         JavaFileManager.Location[] locns =
             { StandardLocation.PLATFORM_CLASS_PATH, StandardLocation.CLASS_PATH };
         try {
             for (JavaFileManager.Location l: locns) {
                 JavaFileObject fo = fm.getJavaFileForInput(l,
                     "com.sun.tools.javac.Main", JavaFileObject.Kind.CLASS);
                 if (fo != null)
                     return l;
             }
         } catch (IOException e) {
             throw new Error(e);
         }
         throw new IllegalStateException("Cannot find javac");
     }
     /**
      * Verify there are no references to String.toLowerCase() in a class file.
      */
     void scan(JavaFileObject fo) throws IOException {
         InputStream in = fo.openInputStream();
         try {
             ClassFile cf = ClassFile.read(in);
             for (ConstantPool.CPInfo cpinfo: cf.constant_pool.entries()) {
                 if (cpinfo.getTag() == ConstantPool.CONSTANT_Methodref) {
                     CONSTANT_Methodref_info ref = (CONSTANT_Methodref_info) cpinfo;
                     String methodDesc = ref.getClassInfo().getName() + "." + ref.getNameAndTypeInfo().getName() + ":" + ref.getNameAndTypeInfo().getType();
                     if ("java/lang/String.toLowerCase:()Ljava/lang/String;".equals(methodDesc)) {
                         error("found reference to String.toLowerCase() in: " + fo.getName());
                     }
                     if ("java/lang/String.toUpperCase:()Ljava/lang/String;".equals(methodDesc)) {
                         error("found reference to String.toLowerCase() in: " + fo.getName());
                     }
                 }
             }
         } catch (ConstantPoolException ignore) {
         } finally {
             in.close();
         }
     }
     /**
      * Report an error.
      */
     void error(String msg) {
         System.err.println("Error: " + msg);
         errors++;
     }
     int errors;
 }

Mercurial > jdk8-mips64-public > langtools / annotate

test/tools/javac/NoStringToLower.java@7909abb85562 (annotated)

test/tools/javac/NoStringToLower.java