aoqi@0: 
aoqi@0: /*
aoqi@0:  * @test  /nodynamiccopyright/
aoqi@0:  * @bug 7144981
aoqi@0:  * @summary javac should ignore ignorable characters in input
aoqi@0:  * @run main IgnoreIgnorableCharactersInInput
aoqi@0:  */
aoqi@0: 
aoqi@0: import com.sun.source.util.JavacTask;
aoqi@0: import java.io.File;
aoqi@0: import java.net.URI;
aoqi@0: import java.util.Arrays;
aoqi@0: import java.util.Set;
aoqi@0: import java.util.TreeSet;
aoqi@0: import javax.tools.JavaCompiler;
aoqi@0: import javax.tools.JavaFileObject;
aoqi@0: import javax.tools.SimpleJavaFileObject;
aoqi@0: import javax.tools.ToolProvider;
aoqi@0: 
aoqi@0: public class IgnoreIgnorableCharactersInInput {
aoqi@0: 
aoqi@0:     public static void main(String... args) throws Exception {
aoqi@0:         new IgnoreIgnorableCharactersInInput().run();
aoqi@0:     }
aoqi@0: 
aoqi@0:     void run() throws Exception {
aoqi@0:         JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
aoqi@0:         File classesDir = new File(System.getProperty("user.dir"), "classes");
aoqi@0:         classesDir.mkdirs();
aoqi@0:         JavaSource[] sources = new JavaSource[]{
aoqi@0:             new JavaSource("TestOneIgnorableChar", "AA\\u0000BB"),
aoqi@0:             new JavaSource("TestMultipleIgnorableChar", "AA\\u0000\\u0000\\u0000BB")};
aoqi@0:         JavacTask ct = (JavacTask)comp.getTask(null, null, null,
aoqi@0:                 Arrays.asList("-d", classesDir.getPath()),
aoqi@0:                 null, Arrays.asList(sources));
aoqi@0:         try {
aoqi@0:             if (!ct.call()) {
aoqi@0:                 throw new AssertionError("Error thrown when compiling test cases");
aoqi@0:             }
aoqi@0:         } catch (Throwable ex) {
aoqi@0:             throw new AssertionError("Error thrown when compiling test cases");
aoqi@0:         }
aoqi@0:         check(classesDir,
aoqi@0:                 "TestOneIgnorableChar.class",
aoqi@0:                 "TestOneIgnorableChar$AABB.class",
aoqi@0:                 "TestMultipleIgnorableChar.class",
aoqi@0:                 "TestMultipleIgnorableChar$AABB.class");
aoqi@0:         if (errors > 0)
aoqi@0:             throw new AssertionError("There are some errors in the test check the error output");
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      *  Check that a directory contains the expected files.
aoqi@0:      */
aoqi@0:     void check(File dir, String... paths) {
aoqi@0:         Set<String> found = new TreeSet<String>(Arrays.asList(dir.list()));
aoqi@0:         Set<String> expect = new TreeSet<String>(Arrays.asList(paths));
aoqi@0:         if (found.equals(expect))
aoqi@0:             return;
aoqi@0:         for (String f: found) {
aoqi@0:             if (!expect.contains(f))
aoqi@0:                 error("Unexpected file found: " + f);
aoqi@0:         }
aoqi@0:         for (String e: expect) {
aoqi@0:             if (!found.contains(e))
aoqi@0:                 error("Expected file not found: " + e);
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     int errors;
aoqi@0: 
aoqi@0:     void error(String msg) {
aoqi@0:         System.err.println(msg);
aoqi@0:         errors++;
aoqi@0:     }
aoqi@0: 
aoqi@0:     class JavaSource extends SimpleJavaFileObject {
aoqi@0: 
aoqi@0:         String internalSource =
aoqi@0:             "public class #O {public class #I {} }";
aoqi@0:         public JavaSource(String outerClassName, String innerClassName) {
aoqi@0:             super(URI.create(outerClassName + ".java"), JavaFileObject.Kind.SOURCE);
aoqi@0:             internalSource =
aoqi@0:                     internalSource.replace("#O", outerClassName).replace("#I", innerClassName);
aoqi@0:         }
aoqi@0: 
aoqi@0:         @Override
aoqi@0:         public CharSequence getCharContent(boolean ignoreEncodingErrors) {
aoqi@0:             return internalSource;
aoqi@0:         }
aoqi@0:     }
aoqi@0: }