/*
* Copyright ( c ) 2011 , 2016 , 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 7031005
* @ summary javap prints " extends java . lang . Object "
* @ modules jdk . jdeps / com . sun . tools . javap
*/
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.net.URI;
import java.util.Arrays;
import javax.tools.JavaCompiler;
import javax.tools.JavaCompiler.CompilationTask;
import javax.tools.JavaFileObject;
import javax.tools.SimpleJavaFileObject;
import javax.tools.StandardJavaFileManager;
import javax.tools.StandardLocation;
import javax.tools.ToolProvider;
public class TestSuperclass {
enum ClassKind {
CLASS ("class" ),
INTERFACE ("interface" );
ClassKind(String keyword) {
this .keyword = keyword;
}
final String keyword;
}
enum GenericKind {
NO("" ),
YES("<T>" );
GenericKind(String typarams) {
this .typarams = typarams;
}
final String typarams;
}
enum SuperKind {
NONE(null ),
SUPER ("Super" );
SuperKind(String name) {
this .name = name;
}
String extend() {
return (name == null ) ? "" : "extends " + name;
}
String decl(ClassKind ck) {
return (name == null ) ? "" : ck.keyword + " " + name + " { }" ;
}
final String name;
}
public static void main(String... args) throws Exception {
JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
try (StandardJavaFileManager fm = comp.getStandardFileManager(null , null , null )) {
int errors = 0 ;
for (ClassKind ck: ClassKind.values()) {
for (GenericKind gk: GenericKind.values()) {
for (SuperKind sk: SuperKind.values()) {
errors += new TestSuperclass(ck, gk, sk).run(comp, fm);
}
}
}
if (errors > 0 )
throw new Exception(errors + " errors found" );
}
}
final ClassKind ck;
final GenericKind gk;
final SuperKind sk;
TestSuperclass(ClassKind ck, GenericKind gk, SuperKind sk) {
this .ck = ck;
this .gk = gk;
this .sk = sk;
}
int run(JavaCompiler comp, StandardJavaFileManager fm) throws IOException {
System.err.println("test: ck:" + ck + " gk:" + gk + " sk:" + sk);
File testDir = new File(ck + "-" + gk + "-" + sk);
testDir.mkdirs();
fm.setLocation(StandardLocation.CLASS_OUTPUT, Arrays.asList(testDir));
JavaSource js = new JavaSource();
System.err.println(js.getCharContent(false ));
CompilationTask t = comp.getTask(null , fm, null , null , null , Arrays.asList(js));
if (!t.call())
throw new Error("compilation failed" );
File testClass = new File(testDir, "Test.class" );
String out = javap(testClass);
// Extract class sig from first line of Java source
String expect = js.source.replaceAll("(?s)^(.* Test[^{]+?) *\\{.*" , "$1" );
// Extract class sig from line from javap output
String found = out.replaceAll("(?s).*\n(.* Test[^{]+?) *\\{.*" , "$1" );
checkEqual("class signature" , expect, found);
return errors;
}
String javap(File file) {
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
String[] args = { file.getPath() };
int rc = com.sun.tools.javap.Main.run(args, pw);
pw.close();
String out = sw.toString();
if (!out.isEmpty())
System.err.println(out);
if (rc != 0 )
throw new Error("javap failed: rc=" + rc);
return out;
}
void checkEqual(String label, String expect, String found) {
if (!expect.equals(found))
error("Unexpected " + label + " found: '" + found + "', expected: '" + expect + "'" );
}
void error(String msg) {
System.err.println("Error: " + msg);
errors++;
}
int errors;
class JavaSource extends SimpleJavaFileObject {
static final String template =
"#CK Test#GK #EK { }\n"
+ "#SK\n" ;
final String source;
public JavaSource() {
super (URI.create("myfo:/Test.java" ), JavaFileObject.Kind.SOURCE);
source = template
.replace("#CK" , ck.keyword)
.replace("#GK" , gk.typarams)
.replace("#EK" , sk.extend())
.replace("#SK" , sk.decl(ck));
}
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
return source;
}
}
}
Messung V0.5 in Prozent C=95 H=94 G=94
¤ Dauer der Verarbeitung: 0.3 Sekunden
¤
*© Formatika GbR, Deutschland