Attachment 239475 Details for Bug 427003 – Simple Java program demonstrating the behavior of InputStreamReader for invalid UTF-8 byte sequences

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Simple Java program demonstrating the behavior of InputStreamReader for invalid UTF-8 byte sequences

InvalidUTF8Example.java (text/x-java), 1.10 KB, created by Michael Ochmann

on 2014-01-30 09:48:44 EST

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Creator: Michael Ochmann

Created: 2014-01-30 09:48:44 EST

Size: 1.10 KB

patch

obsolete

>package org.eclipse.orion;
>
>import java.io.File;
>import java.io.FileInputStream;
>import java.io.FileOutputStream;
>import java.io.InputStreamReader;
>import java.io.Reader;
>
>public class InvalidUTF8Example {
>
>	public static void main(String[] args) throws Exception {
>
>		// write a binary file with invalid UTF-8 sequences
>		File invalidUTF8 = new File("invalidUTF8");
>		FileOutputStream fout = null;
>		try {
>			fout = new FileOutputStream(invalidUTF8);
>			fout.write(0xc0);
>			fout.write(0xc1);
>			fout.write(0xf5);
>			fout.write(0xf6);
>			fout.write(0xf7);
>			fout.write(0xf8);
>			fout.write(0xf9);
>			fout.write(0xfa);
>			fout.write(0xfb);
>			fout.write(0xfc);
>			fout.write(0xfd);
>			fout.write(0xff);
>		} finally {
>			fout.close();
>		}
>
>		// now read the binary file as UTF-8
>		char[] buf = new char[16];
>		Reader reader = null;
>		try {
>			reader = new InputStreamReader(new FileInputStream(invalidUTF8), "UTF-8");
>			reader.read(buf);
>		} finally {
>			reader.close();
>		}
>
>		// InputStreamReader replaced all invalid UTF-8 sequences with \uFFFD !!
>		System.out.print(buf);
>	}
>}

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Attachments on bug 427003: 239475