/*
* Copyright ( c ) 2006 , 2015 , 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 6557752
* @ summary Test for wrapping the original type in ErrorType .
* @ library . . / lib
* @ modules jdk . compiler / com . sun . tools . javac . util
* @ compile T6557752 . java
* @ run main T6557752
*/
import com.sun.source.tree.AssignmentTree;
import com.sun.source.tree.CompilationUnitTree;
import com.sun.source.tree.MethodInvocationTree;
import com.sun.source.util.JavacTask;
import com.sun.source.util.TreePath;
import com.sun.source.util.TreePathScanner;
import com.sun.source.util.Trees;
import com.sun.tools.javac.util.List;
import java.io.IOException;
import java.net.URI;
import javax.lang.model.type.ErrorType;
import javax.lang.model.type.TypeKind;
import javax.lang.model.type.TypeMirror;
import javax.tools.JavaCompiler;
import javax.tools.JavaFileObject;
import javax.tools.SimpleJavaFileObject;
import javax.tools.ToolProvider;
import javax.lang.model.util.Types;
public class T6557752 {
static class MyFileObject extends SimpleJavaFileObject {
public MyFileObject() {
super (URI.create("myfo:/Test.java" ), JavaFileObject.Kind.SOURCE);
}
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
return "import java.util.*;\n"
+ "public class Test {\n"
+ " void foobar() {\n"
+ " Iterator<Number> itr = null;\n"
+ " String str = itr.next();\n"
+ " FooBar fooBar = FooBar.foobar();\n"
+ " }\n"
+ "}" ;
}
}
static Trees trees;
static JavacTask task = null ;
public static void main(String[] args) throws IOException {
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
task = (JavacTask) compiler.getTask(null , null , null , null , null , List.of(new MyFileObject()));
Iterable<? extends CompilationUnitTree> asts = task.parse();
task.analyze();
trees = Trees.instance(task);
MyVisitor myVisitor = new MyVisitor();
for (CompilationUnitTree ast : asts) {
myVisitor.compilationUnit = ast;
myVisitor.scan(ast, null );
}
if (!myVisitor.foundError) {
throw new AssertionError("Expected error not found!" );
}
}
static class MyVisitor extends TreePathScanner<Void ,Void > {
public boolean foundError = false ;
CompilationUnitTree compilationUnit = null ;
int i = 0 ;
@Override
public Void visitMethodInvocation(MethodInvocationTree node, Void ignored) {
TreePath path = TreePath.getPath(compilationUnit, node);
TypeMirror typeMirror = trees.getTypeMirror(path);
if (typeMirror.getKind() == TypeKind.ERROR) {
if (i == 0 ) {
String str1 = trees.getOriginalType((ErrorType)typeMirror).toString();
if (!str1.equals("java.lang.Number" )) {
throw new AssertionError("Trees.getOriginalType() error!" );
}
Types types = task.getTypes();
str1 = types.asElement(trees.getOriginalType((ErrorType)typeMirror)).toString();
if (!str1.equals("java.lang.Number" )) {
throw new AssertionError("Types.asElement() error!" );
}
i++;
}
else if (i == 1 ) {
String str1 = trees.getOriginalType((ErrorType)typeMirror).toString();
if (!str1.equals("FooBar" )) {
throw new AssertionError("Trees.getOriginalType() error!" );
}
Types types = task.getTypes();
str1 = types.asElement(trees.getOriginalType((ErrorType)typeMirror)).toString();
if (!str1.equals("FooBar" )) {
throw new AssertionError("Types.asElement() error!" );
}
foundError = true ;
}
}
return null ;
}
}
}
Messung V0.5 in Prozent C=89 H=90 G=89
¤ Dauer der Verarbeitung: 0.8 Sekunden
(vorverarbeitet am 2026-06-10)
¤
*© Formatika GbR, Deutschland