/*
* Copyright ( c ) 2008 , 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 4459541
* @ summary " javap - l " shows line numbers as signed short ; they should be unsigned .
* @ modules jdk . jdeps / com . sun . tools . javap
*/
import java.io.*;
public class T4459541 {
public static void main(String[] args) throws Exception {
new T4459541().run();
}
public void run() throws IOException {
File javaFile = writeTestFile();
File classFile = compileTestFile(javaFile);
String output = javap(classFile);
verify(output);
}
File writeTestFile() throws IOException {
File f = new File("Test.java" );
out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
println("class Test {" );
println("void begin(int i) {" );
println("i++;" );
println("i++;" );
println("}" );
while (line < 32750 )
println("// " + line);
println("void before_32767(int i) {" );
println("i++;" );
println("i++;" );
println("}" );
while (line < 32768 -4 )
println("// " + line);
println("void straddle_32768(int i) {" );
while (line < 32768 +4 )
println("i++;" );
println("}" );
while (line < 65520 )
println("// " + line);
println("void between_32768_and_65536(int i) {" );
println("i++;" );
println("i++;" );
println("}" );
while (line < 65536 -4 )
println("// " + line);
println("void straddle_65536(int i) {" );
while (line < 65536 +4 )
println("i++;" );
println("}" );
println("}" );
out.close();
return f;
}
File compileTestFile(File f) {
int rc = com.sun.tools.javac.Main.compile(new String[] { f.getPath() });
if (rc != 0 )
throw new Error("compilation failed. rc=" + rc);
String path = f.getPath();
return new File(path.substring(0 , path.length() - 5 ) + ".class" );
}
String javap(File f) {
StringWriter sw = new StringWriter();
PrintWriter out = new PrintWriter(sw);
int rc = com.sun.tools.javap.Main.run(new String[] { "-l" , f.getPath() }, out);
if (rc != 0 )
throw new Error("javap failed. rc=" + rc);
out.close();
return sw.toString();
}
void verify(String output) {
System.out.println(output);
if (output.indexOf("-" ) >= 0 )
throw new Error("- found in output" );
}
void println(String text) {
out.println(text);
line++;
}
PrintWriter out;
int line = 1 ;
}
Messung V0.5 in Prozent C=96 H=93 G=94
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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