Java Code Examples for java.io.InputStreamReader#getEncoding()

The following examples show how to use java.io.InputStreamReader#getEncoding() . These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
static void go(String enc, String str, final byte[] bytes, boolean bidir)
    throws Exception
{
    final Charset charset = Charset.forName(enc);

    /* String(byte[] bs, String enc) */
    if (!(new String(bytes, enc).equals(str)))
        throw new Exception(enc + ": String constructor failed");

    /* String(byte[] bs, Charset charset) */
    if (!(new String(bytes, charset).equals(str)))
        throw new Exception(charset + ": String constructor failed");

    /* String(byte[] bs, int off, int len, Charset charset) */
    String start = str.substring(0, 2);
    String end = str.substring(2);
    if (enc.equals("UTF-16BE") || enc.equals("UTF-16LE")) {
        if (!(new String(bytes, 0, 4, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 4, bytes.length - 4, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    } else if (enc.equals("UTF-16")) {
        if (!(new String(bytes, 0, 6, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
    } else {
        if (!(new String(bytes, 0, 2, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 2, bytes.length - 2, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    }

    /* InputStreamReader */
    ByteArrayInputStream bi = new ByteArrayInputStream(bytes);
    InputStreamReader r = new InputStreamReader(bi, enc);
    String inEnc = r.getEncoding();
    int n = str.length();
    char[] cs = new char[n];
    for (int i = 0; i < n;) {
        int m;
        if ((m = r.read(cs, i, n - i)) < 0)
            throw new Exception(enc + ": EOF on InputStreamReader");
        i += m;
    }
    if (!(new String(cs).equals(str)))
        throw new Exception(enc + ": InputStreamReader failed");

    if (!bidir) {
        System.err.println(enc + " --> " + inEnc);
        return;
    }

    /* String.getBytes(String enc) */
    byte[] bs = str.getBytes(enc);
    if (!equals(bs, bytes))
        throw new Exception(enc + ": String.getBytes failed");

    /* String.getBytes(Charset charset) */
    bs = str.getBytes(charset);
    if (!equals(bs, bytes))
        throw new Exception(charset + ": String.getBytes failed");

    // Calls to String.getBytes(Charset) shouldn't automatically
    // use the cached thread-local encoder.
    if (charset.name().equals("UTF-16BE")) {
        String s = new String(bytes, charset);
        // Replace the thread-local encoder with this one.
        byte[] bb = s.getBytes(Charset.forName("UTF-16LE"));
        if (bytes.length != bb.length) {
            // Incidental test.
            throw new RuntimeException("unequal length: "
                                       + bytes.length + " != "
                                       + bb.length);
        } else {
            boolean diff = false;
            // Expect different byte[] between UTF-16LE and UTF-16BE
            // even though encoder was previously cached by last call
            // to getBytes().
            for (int i = 0; i < bytes.length; i++) {
                if (bytes[i] != bb[i])
                    diff = true;
            }
            if (!diff)
                throw new RuntimeException("byte arrays equal");
        }
    }

    /* OutputStreamWriter */
    ByteArrayOutputStream bo = new ByteArrayOutputStream();
    OutputStreamWriter w = new OutputStreamWriter(bo, enc);
    String outEnc = w.getEncoding();
    w.write(str);
    w.close();
    bs = bo.toByteArray();
    if (!equals(bs, bytes))
        throw new Exception(enc + ": OutputStreamWriter failed");

    System.err.println(enc + " --> " + inEnc + " / " + outEnc);
}
 
Example 2
static void go(String enc, String str, final byte[] bytes, boolean bidir)
    throws Exception
{
    final Charset charset = Charset.forName(enc);

    /* String(byte[] bs, String enc) */
    if (!(new String(bytes, enc).equals(str)))
        throw new Exception(enc + ": String constructor failed");

    /* String(byte[] bs, Charset charset) */
    if (!(new String(bytes, charset).equals(str)))
        throw new Exception(charset + ": String constructor failed");

    /* String(byte[] bs, int off, int len, Charset charset) */
    String start = str.substring(0, 2);
    String end = str.substring(2);
    if (enc.equals("UTF-16BE") || enc.equals("UTF-16LE")) {
        if (!(new String(bytes, 0, 4, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 4, bytes.length - 4, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    } else if (enc.equals("UTF-16")) {
        if (!(new String(bytes, 0, 6, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
    } else {
        if (!(new String(bytes, 0, 2, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 2, bytes.length - 2, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    }

    /* InputStreamReader */
    ByteArrayInputStream bi = new ByteArrayInputStream(bytes);
    InputStreamReader r = new InputStreamReader(bi, enc);
    String inEnc = r.getEncoding();
    int n = str.length();
    char[] cs = new char[n];
    for (int i = 0; i < n;) {
        int m;
        if ((m = r.read(cs, i, n - i)) < 0)
            throw new Exception(enc + ": EOF on InputStreamReader");
        i += m;
    }
    if (!(new String(cs).equals(str)))
        throw new Exception(enc + ": InputStreamReader failed");

    if (!bidir) {
        System.err.println(enc + " --> " + inEnc);
        return;
    }

    /* String.getBytes(String enc) */
    byte[] bs = str.getBytes(enc);
    if (!equals(bs, bytes))
        throw new Exception(enc + ": String.getBytes failed");

    /* String.getBytes(Charset charset) */
    bs = str.getBytes(charset);
    if (!equals(bs, bytes))
        throw new Exception(charset + ": String.getBytes failed");

    // Calls to String.getBytes(Charset) shouldn't automatically
    // use the cached thread-local encoder.
    if (charset.name().equals("UTF-16BE")) {
        String s = new String(bytes, charset);
        // Replace the thread-local encoder with this one.
        byte[] bb = s.getBytes(Charset.forName("UTF-16LE"));
        if (bytes.length != bb.length) {
            // Incidental test.
            throw new RuntimeException("unequal length: "
                                       + bytes.length + " != "
                                       + bb.length);
        } else {
            boolean diff = false;
            // Expect different byte[] between UTF-16LE and UTF-16BE
            // even though encoder was previously cached by last call
            // to getBytes().
            for (int i = 0; i < bytes.length; i++) {
                if (bytes[i] != bb[i])
                    diff = true;
            }
            if (!diff)
                throw new RuntimeException("byte arrays equal");
        }
    }

    /* OutputStreamWriter */
    ByteArrayOutputStream bo = new ByteArrayOutputStream();
    OutputStreamWriter w = new OutputStreamWriter(bo, enc);
    String outEnc = w.getEncoding();
    w.write(str);
    w.close();
    bs = bo.toByteArray();
    if (!equals(bs, bytes))
        throw new Exception(enc + ": OutputStreamWriter failed");

    System.err.println(enc + " --> " + inEnc + " / " + outEnc);
}
 
Example 3
static void go(String enc, String str, final byte[] bytes, boolean bidir)
    throws Exception
{
    final Charset charset = Charset.forName(enc);

    /* String(byte[] bs, String enc) */
    if (!(new String(bytes, enc).equals(str)))
        throw new Exception(enc + ": String constructor failed");

    /* String(byte[] bs, Charset charset) */
    if (!(new String(bytes, charset).equals(str)))
        throw new Exception(charset + ": String constructor failed");

    /* String(byte[] bs, int off, int len, Charset charset) */
    String start = str.substring(0, 2);
    String end = str.substring(2);
    if (enc.equals("UTF-16BE") || enc.equals("UTF-16LE")) {
        if (!(new String(bytes, 0, 4, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 4, bytes.length - 4, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    } else if (enc.equals("UTF-16")) {
        if (!(new String(bytes, 0, 6, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
    } else {
        if (!(new String(bytes, 0, 2, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 2, bytes.length - 2, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    }

    /* InputStreamReader */
    ByteArrayInputStream bi = new ByteArrayInputStream(bytes);
    InputStreamReader r = new InputStreamReader(bi, enc);
    String inEnc = r.getEncoding();
    int n = str.length();
    char[] cs = new char[n];
    for (int i = 0; i < n;) {
        int m;
        if ((m = r.read(cs, i, n - i)) < 0)
            throw new Exception(enc + ": EOF on InputStreamReader");
        i += m;
    }
    if (!(new String(cs).equals(str)))
        throw new Exception(enc + ": InputStreamReader failed");

    if (!bidir) {
        System.err.println(enc + " --> " + inEnc);
        return;
    }

    /* String.getBytes(String enc) */
    byte[] bs = str.getBytes(enc);
    if (!equals(bs, bytes))
        throw new Exception(enc + ": String.getBytes failed");

    /* String.getBytes(Charset charset) */
    bs = str.getBytes(charset);
    if (!equals(bs, bytes))
        throw new Exception(charset + ": String.getBytes failed");

    // Calls to String.getBytes(Charset) shouldn't automatically
    // use the cached thread-local encoder.
    if (charset.name().equals("UTF-16BE")) {
        String s = new String(bytes, charset);
        // Replace the thread-local encoder with this one.
        byte[] bb = s.getBytes(Charset.forName("UTF-16LE"));
        if (bytes.length != bb.length) {
            // Incidental test.
            throw new RuntimeException("unequal length: "
                                       + bytes.length + " != "
                                       + bb.length);
        } else {
            boolean diff = false;
            // Expect different byte[] between UTF-16LE and UTF-16BE
            // even though encoder was previously cached by last call
            // to getBytes().
            for (int i = 0; i < bytes.length; i++) {
                if (bytes[i] != bb[i])
                    diff = true;
            }
            if (!diff)
                throw new RuntimeException("byte arrays equal");
        }
    }

    /* OutputStreamWriter */
    ByteArrayOutputStream bo = new ByteArrayOutputStream();
    OutputStreamWriter w = new OutputStreamWriter(bo, enc);
    String outEnc = w.getEncoding();
    w.write(str);
    w.close();
    bs = bo.toByteArray();
    if (!equals(bs, bytes))
        throw new Exception(enc + ": OutputStreamWriter failed");

    System.err.println(enc + " --> " + inEnc + " / " + outEnc);
}
 
Example 4
Source Project: jdk8u60   File: Encodings.java    License: GNU General Public License v2.0 4 votes vote down vote up
static void go(String enc, String str, final byte[] bytes, boolean bidir)
    throws Exception
{
    final Charset charset = Charset.forName(enc);

    /* String(byte[] bs, String enc) */
    if (!(new String(bytes, enc).equals(str)))
        throw new Exception(enc + ": String constructor failed");

    /* String(byte[] bs, Charset charset) */
    if (!(new String(bytes, charset).equals(str)))
        throw new Exception(charset + ": String constructor failed");

    /* String(byte[] bs, int off, int len, Charset charset) */
    String start = str.substring(0, 2);
    String end = str.substring(2);
    if (enc.equals("UTF-16BE") || enc.equals("UTF-16LE")) {
        if (!(new String(bytes, 0, 4, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 4, bytes.length - 4, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    } else if (enc.equals("UTF-16")) {
        if (!(new String(bytes, 0, 6, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
    } else {
        if (!(new String(bytes, 0, 2, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 2, bytes.length - 2, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    }

    /* InputStreamReader */
    ByteArrayInputStream bi = new ByteArrayInputStream(bytes);
    InputStreamReader r = new InputStreamReader(bi, enc);
    String inEnc = r.getEncoding();
    int n = str.length();
    char[] cs = new char[n];
    for (int i = 0; i < n;) {
        int m;
        if ((m = r.read(cs, i, n - i)) < 0)
            throw new Exception(enc + ": EOF on InputStreamReader");
        i += m;
    }
    if (!(new String(cs).equals(str)))
        throw new Exception(enc + ": InputStreamReader failed");

    if (!bidir) {
        System.err.println(enc + " --> " + inEnc);
        return;
    }

    /* String.getBytes(String enc) */
    byte[] bs = str.getBytes(enc);
    if (!equals(bs, bytes))
        throw new Exception(enc + ": String.getBytes failed");

    /* String.getBytes(Charset charset) */
    bs = str.getBytes(charset);
    if (!equals(bs, bytes))
        throw new Exception(charset + ": String.getBytes failed");

    // Calls to String.getBytes(Charset) shouldn't automatically
    // use the cached thread-local encoder.
    if (charset.name().equals("UTF-16BE")) {
        String s = new String(bytes, charset);
        // Replace the thread-local encoder with this one.
        byte[] bb = s.getBytes(Charset.forName("UTF-16LE"));
        if (bytes.length != bb.length) {
            // Incidental test.
            throw new RuntimeException("unequal length: "
                                       + bytes.length + " != "
                                       + bb.length);
        } else {
            boolean diff = false;
            // Expect different byte[] between UTF-16LE and UTF-16BE
            // even though encoder was previously cached by last call
            // to getBytes().
            for (int i = 0; i < bytes.length; i++) {
                if (bytes[i] != bb[i])
                    diff = true;
            }
            if (!diff)
                throw new RuntimeException("byte arrays equal");
        }
    }

    /* OutputStreamWriter */
    ByteArrayOutputStream bo = new ByteArrayOutputStream();
    OutputStreamWriter w = new OutputStreamWriter(bo, enc);
    String outEnc = w.getEncoding();
    w.write(str);
    w.close();
    bs = bo.toByteArray();
    if (!equals(bs, bytes))
        throw new Exception(enc + ": OutputStreamWriter failed");

    System.err.println(enc + " --> " + inEnc + " / " + outEnc);
}
 
Example 5
static void go(String enc, String str, final byte[] bytes, boolean bidir)
    throws Exception
{
    final Charset charset = Charset.forName(enc);

    /* String(byte[] bs, String enc) */
    if (!(new String(bytes, enc).equals(str)))
        throw new Exception(enc + ": String constructor failed");

    /* String(byte[] bs, Charset charset) */
    if (!(new String(bytes, charset).equals(str)))
        throw new Exception(charset + ": String constructor failed");

    /* String(byte[] bs, int off, int len, Charset charset) */
    String start = str.substring(0, 2);
    String end = str.substring(2);
    if (enc.equals("UTF-16BE") || enc.equals("UTF-16LE")) {
        if (!(new String(bytes, 0, 4, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 4, bytes.length - 4, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    } else if (enc.equals("UTF-16")) {
        if (!(new String(bytes, 0, 6, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
    } else {
        if (!(new String(bytes, 0, 2, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 2, bytes.length - 2, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    }

    /* InputStreamReader */
    ByteArrayInputStream bi = new ByteArrayInputStream(bytes);
    InputStreamReader r = new InputStreamReader(bi, enc);
    String inEnc = r.getEncoding();
    int n = str.length();
    char[] cs = new char[n];
    for (int i = 0; i < n;) {
        int m;
        if ((m = r.read(cs, i, n - i)) < 0)
            throw new Exception(enc + ": EOF on InputStreamReader");
        i += m;
    }
    if (!(new String(cs).equals(str)))
        throw new Exception(enc + ": InputStreamReader failed");

    if (!bidir) {
        System.err.println(enc + " --> " + inEnc);
        return;
    }

    /* String.getBytes(String enc) */
    byte[] bs = str.getBytes(enc);
    if (!equals(bs, bytes))
        throw new Exception(enc + ": String.getBytes failed");

    /* String.getBytes(Charset charset) */
    bs = str.getBytes(charset);
    if (!equals(bs, bytes))
        throw new Exception(charset + ": String.getBytes failed");

    // Calls to String.getBytes(Charset) shouldn't automatically
    // use the cached thread-local encoder.
    if (charset.name().equals("UTF-16BE")) {
        String s = new String(bytes, charset);
        // Replace the thread-local encoder with this one.
        byte[] bb = s.getBytes(Charset.forName("UTF-16LE"));
        if (bytes.length != bb.length) {
            // Incidental test.
            throw new RuntimeException("unequal length: "
                                       + bytes.length + " != "
                                       + bb.length);
        } else {
            boolean diff = false;
            // Expect different byte[] between UTF-16LE and UTF-16BE
            // even though encoder was previously cached by last call
            // to getBytes().
            for (int i = 0; i < bytes.length; i++) {
                if (bytes[i] != bb[i])
                    diff = true;
            }
            if (!diff)
                throw new RuntimeException("byte arrays equal");
        }
    }

    /* OutputStreamWriter */
    ByteArrayOutputStream bo = new ByteArrayOutputStream();
    OutputStreamWriter w = new OutputStreamWriter(bo, enc);
    String outEnc = w.getEncoding();
    w.write(str);
    w.close();
    bs = bo.toByteArray();
    if (!equals(bs, bytes))
        throw new Exception(enc + ": OutputStreamWriter failed");

    System.err.println(enc + " --> " + inEnc + " / " + outEnc);
}
 
Example 6
static void go(String enc, String str, final byte[] bytes, boolean bidir)
    throws Exception
{
    final Charset charset = Charset.forName(enc);

    /* String(byte[] bs, String enc) */
    if (!(new String(bytes, enc).equals(str)))
        throw new Exception(enc + ": String constructor failed");

    /* String(byte[] bs, Charset charset) */
    if (!(new String(bytes, charset).equals(str)))
        throw new Exception(charset + ": String constructor failed");

    /* String(byte[] bs, int off, int len, Charset charset) */
    String start = str.substring(0, 2);
    String end = str.substring(2);
    if (enc.equals("UTF-16BE") || enc.equals("UTF-16LE")) {
        if (!(new String(bytes, 0, 4, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 4, bytes.length - 4, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    } else if (enc.equals("UTF-16")) {
        if (!(new String(bytes, 0, 6, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
    } else {
        if (!(new String(bytes, 0, 2, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 2, bytes.length - 2, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    }

    /* InputStreamReader */
    ByteArrayInputStream bi = new ByteArrayInputStream(bytes);
    InputStreamReader r = new InputStreamReader(bi, enc);
    String inEnc = r.getEncoding();
    int n = str.length();
    char[] cs = new char[n];
    for (int i = 0; i < n;) {
        int m;
        if ((m = r.read(cs, i, n - i)) < 0)
            throw new Exception(enc + ": EOF on InputStreamReader");
        i += m;
    }
    if (!(new String(cs).equals(str)))
        throw new Exception(enc + ": InputStreamReader failed");

    if (!bidir) {
        System.err.println(enc + " --> " + inEnc);
        return;
    }

    /* String.getBytes(String enc) */
    byte[] bs = str.getBytes(enc);
    if (!equals(bs, bytes))
        throw new Exception(enc + ": String.getBytes failed");

    /* String.getBytes(Charset charset) */
    bs = str.getBytes(charset);
    if (!equals(bs, bytes))
        throw new Exception(charset + ": String.getBytes failed");

    // Calls to String.getBytes(Charset) shouldn't automatically
    // use the cached thread-local encoder.
    if (charset.name().equals("UTF-16BE")) {
        String s = new String(bytes, charset);
        // Replace the thread-local encoder with this one.
        byte[] bb = s.getBytes(Charset.forName("UTF-16LE"));
        if (bytes.length != bb.length) {
            // Incidental test.
            throw new RuntimeException("unequal length: "
                                       + bytes.length + " != "
                                       + bb.length);
        } else {
            boolean diff = false;
            // Expect different byte[] between UTF-16LE and UTF-16BE
            // even though encoder was previously cached by last call
            // to getBytes().
            for (int i = 0; i < bytes.length; i++) {
                if (bytes[i] != bb[i])
                    diff = true;
            }
            if (!diff)
                throw new RuntimeException("byte arrays equal");
        }
    }

    /* OutputStreamWriter */
    ByteArrayOutputStream bo = new ByteArrayOutputStream();
    OutputStreamWriter w = new OutputStreamWriter(bo, enc);
    String outEnc = w.getEncoding();
    w.write(str);
    w.close();
    bs = bo.toByteArray();
    if (!equals(bs, bytes))
        throw new Exception(enc + ": OutputStreamWriter failed");

    System.err.println(enc + " --> " + inEnc + " / " + outEnc);
}
 
Example 7
static void go(String enc, String str, final byte[] bytes, boolean bidir)
    throws Exception
{
    final Charset charset = Charset.forName(enc);

    /* String(byte[] bs, String enc) */
    if (!(new String(bytes, enc).equals(str)))
        throw new Exception(enc + ": String constructor failed");

    /* String(byte[] bs, Charset charset) */
    if (!(new String(bytes, charset).equals(str)))
        throw new Exception(charset + ": String constructor failed");

    /* String(byte[] bs, int off, int len, Charset charset) */
    String start = str.substring(0, 2);
    String end = str.substring(2);
    if (enc.equals("UTF-16BE") || enc.equals("UTF-16LE")) {
        if (!(new String(bytes, 0, 4, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 4, bytes.length - 4, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    } else if (enc.equals("UTF-16")) {
        if (!(new String(bytes, 0, 6, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
    } else {
        if (!(new String(bytes, 0, 2, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 2, bytes.length - 2, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    }

    /* InputStreamReader */
    ByteArrayInputStream bi = new ByteArrayInputStream(bytes);
    InputStreamReader r = new InputStreamReader(bi, enc);
    String inEnc = r.getEncoding();
    int n = str.length();
    char[] cs = new char[n];
    for (int i = 0; i < n;) {
        int m;
        if ((m = r.read(cs, i, n - i)) < 0)
            throw new Exception(enc + ": EOF on InputStreamReader");
        i += m;
    }
    if (!(new String(cs).equals(str)))
        throw new Exception(enc + ": InputStreamReader failed");

    if (!bidir) {
        System.err.println(enc + " --> " + inEnc);
        return;
    }

    /* String.getBytes(String enc) */
    byte[] bs = str.getBytes(enc);
    if (!equals(bs, bytes))
        throw new Exception(enc + ": String.getBytes failed");

    /* String.getBytes(Charset charset) */
    bs = str.getBytes(charset);
    if (!equals(bs, bytes))
        throw new Exception(charset + ": String.getBytes failed");

    // Calls to String.getBytes(Charset) shouldn't automatically
    // use the cached thread-local encoder.
    if (charset.name().equals("UTF-16BE")) {
        String s = new String(bytes, charset);
        // Replace the thread-local encoder with this one.
        byte[] bb = s.getBytes(Charset.forName("UTF-16LE"));
        if (bytes.length != bb.length) {
            // Incidental test.
            throw new RuntimeException("unequal length: "
                                       + bytes.length + " != "
                                       + bb.length);
        } else {
            boolean diff = false;
            // Expect different byte[] between UTF-16LE and UTF-16BE
            // even though encoder was previously cached by last call
            // to getBytes().
            for (int i = 0; i < bytes.length; i++) {
                if (bytes[i] != bb[i])
                    diff = true;
            }
            if (!diff)
                throw new RuntimeException("byte arrays equal");
        }
    }

    /* OutputStreamWriter */
    ByteArrayOutputStream bo = new ByteArrayOutputStream();
    OutputStreamWriter w = new OutputStreamWriter(bo, enc);
    String outEnc = w.getEncoding();
    w.write(str);
    w.close();
    bs = bo.toByteArray();
    if (!equals(bs, bytes))
        throw new Exception(enc + ": OutputStreamWriter failed");

    System.err.println(enc + " --> " + inEnc + " / " + outEnc);
}
 
Example 8
static void go(String enc, String str, final byte[] bytes, boolean bidir)
    throws Exception
{
    final Charset charset = Charset.forName(enc);

    /* String(byte[] bs, String enc) */
    if (!(new String(bytes, enc).equals(str)))
        throw new Exception(enc + ": String constructor failed");

    /* String(byte[] bs, Charset charset) */
    if (!(new String(bytes, charset).equals(str)))
        throw new Exception(charset + ": String constructor failed");

    /* String(byte[] bs, int off, int len, Charset charset) */
    String start = str.substring(0, 2);
    String end = str.substring(2);
    if (enc.equals("UTF-16BE") || enc.equals("UTF-16LE")) {
        if (!(new String(bytes, 0, 4, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 4, bytes.length - 4, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    } else if (enc.equals("UTF-16")) {
        if (!(new String(bytes, 0, 6, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
    } else {
        if (!(new String(bytes, 0, 2, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 2, bytes.length - 2, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    }

    /* InputStreamReader */
    ByteArrayInputStream bi = new ByteArrayInputStream(bytes);
    InputStreamReader r = new InputStreamReader(bi, enc);
    String inEnc = r.getEncoding();
    int n = str.length();
    char[] cs = new char[n];
    for (int i = 0; i < n;) {
        int m;
        if ((m = r.read(cs, i, n - i)) < 0)
            throw new Exception(enc + ": EOF on InputStreamReader");
        i += m;
    }
    if (!(new String(cs).equals(str)))
        throw new Exception(enc + ": InputStreamReader failed");

    if (!bidir) {
        System.err.println(enc + " --> " + inEnc);
        return;
    }

    /* String.getBytes(String enc) */
    byte[] bs = str.getBytes(enc);
    if (!equals(bs, bytes))
        throw new Exception(enc + ": String.getBytes failed");

    /* String.getBytes(Charset charset) */
    bs = str.getBytes(charset);
    if (!equals(bs, bytes))
        throw new Exception(charset + ": String.getBytes failed");

    // Calls to String.getBytes(Charset) shouldn't automatically
    // use the cached thread-local encoder.
    if (charset.name().equals("UTF-16BE")) {
        String s = new String(bytes, charset);
        // Replace the thread-local encoder with this one.
        byte[] bb = s.getBytes(Charset.forName("UTF-16LE"));
        if (bytes.length != bb.length) {
            // Incidental test.
            throw new RuntimeException("unequal length: "
                                       + bytes.length + " != "
                                       + bb.length);
        } else {
            boolean diff = false;
            // Expect different byte[] between UTF-16LE and UTF-16BE
            // even though encoder was previously cached by last call
            // to getBytes().
            for (int i = 0; i < bytes.length; i++) {
                if (bytes[i] != bb[i])
                    diff = true;
            }
            if (!diff)
                throw new RuntimeException("byte arrays equal");
        }
    }

    /* OutputStreamWriter */
    ByteArrayOutputStream bo = new ByteArrayOutputStream();
    OutputStreamWriter w = new OutputStreamWriter(bo, enc);
    String outEnc = w.getEncoding();
    w.write(str);
    w.close();
    bs = bo.toByteArray();
    if (!equals(bs, bytes))
        throw new Exception(enc + ": OutputStreamWriter failed");

    System.err.println(enc + " --> " + inEnc + " / " + outEnc);
}
 
Example 9
Source Project: hottub   File: Encodings.java    License: GNU General Public License v2.0 4 votes vote down vote up
static void go(String enc, String str, final byte[] bytes, boolean bidir)
    throws Exception
{
    final Charset charset = Charset.forName(enc);

    /* String(byte[] bs, String enc) */
    if (!(new String(bytes, enc).equals(str)))
        throw new Exception(enc + ": String constructor failed");

    /* String(byte[] bs, Charset charset) */
    if (!(new String(bytes, charset).equals(str)))
        throw new Exception(charset + ": String constructor failed");

    /* String(byte[] bs, int off, int len, Charset charset) */
    String start = str.substring(0, 2);
    String end = str.substring(2);
    if (enc.equals("UTF-16BE") || enc.equals("UTF-16LE")) {
        if (!(new String(bytes, 0, 4, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 4, bytes.length - 4, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    } else if (enc.equals("UTF-16")) {
        if (!(new String(bytes, 0, 6, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
    } else {
        if (!(new String(bytes, 0, 2, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 2, bytes.length - 2, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    }

    /* InputStreamReader */
    ByteArrayInputStream bi = new ByteArrayInputStream(bytes);
    InputStreamReader r = new InputStreamReader(bi, enc);
    String inEnc = r.getEncoding();
    int n = str.length();
    char[] cs = new char[n];
    for (int i = 0; i < n;) {
        int m;
        if ((m = r.read(cs, i, n - i)) < 0)
            throw new Exception(enc + ": EOF on InputStreamReader");
        i += m;
    }
    if (!(new String(cs).equals(str)))
        throw new Exception(enc + ": InputStreamReader failed");

    if (!bidir) {
        System.err.println(enc + " --> " + inEnc);
        return;
    }

    /* String.getBytes(String enc) */
    byte[] bs = str.getBytes(enc);
    if (!equals(bs, bytes))
        throw new Exception(enc + ": String.getBytes failed");

    /* String.getBytes(Charset charset) */
    bs = str.getBytes(charset);
    if (!equals(bs, bytes))
        throw new Exception(charset + ": String.getBytes failed");

    // Calls to String.getBytes(Charset) shouldn't automatically
    // use the cached thread-local encoder.
    if (charset.name().equals("UTF-16BE")) {
        String s = new String(bytes, charset);
        // Replace the thread-local encoder with this one.
        byte[] bb = s.getBytes(Charset.forName("UTF-16LE"));
        if (bytes.length != bb.length) {
            // Incidental test.
            throw new RuntimeException("unequal length: "
                                       + bytes.length + " != "
                                       + bb.length);
        } else {
            boolean diff = false;
            // Expect different byte[] between UTF-16LE and UTF-16BE
            // even though encoder was previously cached by last call
            // to getBytes().
            for (int i = 0; i < bytes.length; i++) {
                if (bytes[i] != bb[i])
                    diff = true;
            }
            if (!diff)
                throw new RuntimeException("byte arrays equal");
        }
    }

    /* OutputStreamWriter */
    ByteArrayOutputStream bo = new ByteArrayOutputStream();
    OutputStreamWriter w = new OutputStreamWriter(bo, enc);
    String outEnc = w.getEncoding();
    w.write(str);
    w.close();
    bs = bo.toByteArray();
    if (!equals(bs, bytes))
        throw new Exception(enc + ": OutputStreamWriter failed");

    System.err.println(enc + " --> " + inEnc + " / " + outEnc);
}
 
Example 10
static void go(String enc, String str, final byte[] bytes, boolean bidir)
    throws Exception
{
    final Charset charset = Charset.forName(enc);

    /* String(byte[] bs, String enc) */
    if (!(new String(bytes, enc).equals(str)))
        throw new Exception(enc + ": String constructor failed");

    /* String(byte[] bs, Charset charset) */
    if (!(new String(bytes, charset).equals(str)))
        throw new Exception(charset + ": String constructor failed");

    /* String(byte[] bs, int off, int len, Charset charset) */
    String start = str.substring(0, 2);
    String end = str.substring(2);
    if (enc.equals("UTF-16BE") || enc.equals("UTF-16LE")) {
        if (!(new String(bytes, 0, 4, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 4, bytes.length - 4, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    } else if (enc.equals("UTF-16")) {
        if (!(new String(bytes, 0, 6, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
    } else {
        if (!(new String(bytes, 0, 2, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 2, bytes.length - 2, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    }

    /* InputStreamReader */
    ByteArrayInputStream bi = new ByteArrayInputStream(bytes);
    InputStreamReader r = new InputStreamReader(bi, enc);
    String inEnc = r.getEncoding();
    int n = str.length();
    char[] cs = new char[n];
    for (int i = 0; i < n;) {
        int m;
        if ((m = r.read(cs, i, n - i)) < 0)
            throw new Exception(enc + ": EOF on InputStreamReader");
        i += m;
    }
    if (!(new String(cs).equals(str)))
        throw new Exception(enc + ": InputStreamReader failed");

    if (!bidir) {
        System.err.println(enc + " --> " + inEnc);
        return;
    }

    /* String.getBytes(String enc) */
    byte[] bs = str.getBytes(enc);
    if (!equals(bs, bytes))
        throw new Exception(enc + ": String.getBytes failed");

    /* String.getBytes(Charset charset) */
    bs = str.getBytes(charset);
    if (!equals(bs, bytes))
        throw new Exception(charset + ": String.getBytes failed");

    // Calls to String.getBytes(Charset) shouldn't automatically
    // use the cached thread-local encoder.
    if (charset.name().equals("UTF-16BE")) {
        String s = new String(bytes, charset);
        // Replace the thread-local encoder with this one.
        byte[] bb = s.getBytes(Charset.forName("UTF-16LE"));
        if (bytes.length != bb.length) {
            // Incidental test.
            throw new RuntimeException("unequal length: "
                                       + bytes.length + " != "
                                       + bb.length);
        } else {
            boolean diff = false;
            // Expect different byte[] between UTF-16LE and UTF-16BE
            // even though encoder was previously cached by last call
            // to getBytes().
            for (int i = 0; i < bytes.length; i++) {
                if (bytes[i] != bb[i])
                    diff = true;
            }
            if (!diff)
                throw new RuntimeException("byte arrays equal");
        }
    }

    /* OutputStreamWriter */
    ByteArrayOutputStream bo = new ByteArrayOutputStream();
    OutputStreamWriter w = new OutputStreamWriter(bo, enc);
    String outEnc = w.getEncoding();
    w.write(str);
    w.close();
    bs = bo.toByteArray();
    if (!equals(bs, bytes))
        throw new Exception(enc + ": OutputStreamWriter failed");

    System.err.println(enc + " --> " + inEnc + " / " + outEnc);
}
 
Example 11
static void go(String enc, String str, final byte[] bytes, boolean bidir)
    throws Exception
{
    final Charset charset = Charset.forName(enc);

    /* String(byte[] bs, String enc) */
    if (!(new String(bytes, enc).equals(str)))
        throw new Exception(enc + ": String constructor failed");

    /* String(byte[] bs, Charset charset) */
    if (!(new String(bytes, charset).equals(str)))
        throw new Exception(charset + ": String constructor failed");

    /* String(byte[] bs, int off, int len, Charset charset) */
    String start = str.substring(0, 2);
    String end = str.substring(2);
    if (enc.equals("UTF-16BE") || enc.equals("UTF-16LE")) {
        if (!(new String(bytes, 0, 4, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 4, bytes.length - 4, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    } else if (enc.equals("UTF-16")) {
        if (!(new String(bytes, 0, 6, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
    } else {
        if (!(new String(bytes, 0, 2, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 2, bytes.length - 2, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    }

    /* InputStreamReader */
    ByteArrayInputStream bi = new ByteArrayInputStream(bytes);
    InputStreamReader r = new InputStreamReader(bi, enc);
    String inEnc = r.getEncoding();
    int n = str.length();
    char[] cs = new char[n];
    for (int i = 0; i < n;) {
        int m;
        if ((m = r.read(cs, i, n - i)) < 0)
            throw new Exception(enc + ": EOF on InputStreamReader");
        i += m;
    }
    if (!(new String(cs).equals(str)))
        throw new Exception(enc + ": InputStreamReader failed");

    if (!bidir) {
        System.err.println(enc + " --> " + inEnc);
        return;
    }

    /* String.getBytes(String enc) */
    byte[] bs = str.getBytes(enc);
    if (!equals(bs, bytes))
        throw new Exception(enc + ": String.getBytes failed");

    /* String.getBytes(Charset charset) */
    bs = str.getBytes(charset);
    if (!equals(bs, bytes))
        throw new Exception(charset + ": String.getBytes failed");

    // Calls to String.getBytes(Charset) shouldn't automatically
    // use the cached thread-local encoder.
    if (charset.name().equals("UTF-16BE")) {
        String s = new String(bytes, charset);
        // Replace the thread-local encoder with this one.
        byte[] bb = s.getBytes(Charset.forName("UTF-16LE"));
        if (bytes.length != bb.length) {
            // Incidental test.
            throw new RuntimeException("unequal length: "
                                       + bytes.length + " != "
                                       + bb.length);
        } else {
            boolean diff = false;
            // Expect different byte[] between UTF-16LE and UTF-16BE
            // even though encoder was previously cached by last call
            // to getBytes().
            for (int i = 0; i < bytes.length; i++) {
                if (bytes[i] != bb[i])
                    diff = true;
            }
            if (!diff)
                throw new RuntimeException("byte arrays equal");
        }
    }

    /* OutputStreamWriter */
    ByteArrayOutputStream bo = new ByteArrayOutputStream();
    OutputStreamWriter w = new OutputStreamWriter(bo, enc);
    String outEnc = w.getEncoding();
    w.write(str);
    w.close();
    bs = bo.toByteArray();
    if (!equals(bs, bytes))
        throw new Exception(enc + ": OutputStreamWriter failed");

    System.err.println(enc + " --> " + inEnc + " / " + outEnc);
}
 
Example 12
static void go(String enc, String str, final byte[] bytes, boolean bidir)
    throws Exception
{
    final Charset charset = Charset.forName(enc);

    /* String(byte[] bs, String enc) */
    if (!(new String(bytes, enc).equals(str)))
        throw new Exception(enc + ": String constructor failed");

    /* String(byte[] bs, Charset charset) */
    if (!(new String(bytes, charset).equals(str)))
        throw new Exception(charset + ": String constructor failed");

    /* String(byte[] bs, int off, int len, Charset charset) */
    String start = str.substring(0, 2);
    String end = str.substring(2);
    if (enc.equals("UTF-16BE") || enc.equals("UTF-16LE")) {
        if (!(new String(bytes, 0, 4, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 4, bytes.length - 4, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    } else if (enc.equals("UTF-16")) {
        if (!(new String(bytes, 0, 6, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
    } else {
        if (!(new String(bytes, 0, 2, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 2, bytes.length - 2, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    }

    /* InputStreamReader */
    ByteArrayInputStream bi = new ByteArrayInputStream(bytes);
    InputStreamReader r = new InputStreamReader(bi, enc);
    String inEnc = r.getEncoding();
    int n = str.length();
    char[] cs = new char[n];
    for (int i = 0; i < n;) {
        int m;
        if ((m = r.read(cs, i, n - i)) < 0)
            throw new Exception(enc + ": EOF on InputStreamReader");
        i += m;
    }
    if (!(new String(cs).equals(str)))
        throw new Exception(enc + ": InputStreamReader failed");

    if (!bidir) {
        System.err.println(enc + " --> " + inEnc);
        return;
    }

    /* String.getBytes(String enc) */
    byte[] bs = str.getBytes(enc);
    if (!equals(bs, bytes))
        throw new Exception(enc + ": String.getBytes failed");

    /* String.getBytes(Charset charset) */
    bs = str.getBytes(charset);
    if (!equals(bs, bytes))
        throw new Exception(charset + ": String.getBytes failed");

    // Calls to String.getBytes(Charset) shouldn't automatically
    // use the cached thread-local encoder.
    if (charset.name().equals("UTF-16BE")) {
        String s = new String(bytes, charset);
        // Replace the thread-local encoder with this one.
        byte[] bb = s.getBytes(Charset.forName("UTF-16LE"));
        if (bytes.length != bb.length) {
            // Incidental test.
            throw new RuntimeException("unequal length: "
                                       + bytes.length + " != "
                                       + bb.length);
        } else {
            boolean diff = false;
            // Expect different byte[] between UTF-16LE and UTF-16BE
            // even though encoder was previously cached by last call
            // to getBytes().
            for (int i = 0; i < bytes.length; i++) {
                if (bytes[i] != bb[i])
                    diff = true;
            }
            if (!diff)
                throw new RuntimeException("byte arrays equal");
        }
    }

    /* OutputStreamWriter */
    ByteArrayOutputStream bo = new ByteArrayOutputStream();
    OutputStreamWriter w = new OutputStreamWriter(bo, enc);
    String outEnc = w.getEncoding();
    w.write(str);
    w.close();
    bs = bo.toByteArray();
    if (!equals(bs, bytes))
        throw new Exception(enc + ": OutputStreamWriter failed");

    System.err.println(enc + " --> " + inEnc + " / " + outEnc);
}
 
Example 13
static void go(String enc, String str, final byte[] bytes, boolean bidir)
    throws Exception
{
    final Charset charset = Charset.forName(enc);

    /* String(byte[] bs, String enc) */
    if (!(new String(bytes, enc).equals(str)))
        throw new Exception(enc + ": String constructor failed");

    /* String(byte[] bs, Charset charset) */
    if (!(new String(bytes, charset).equals(str)))
        throw new Exception(charset + ": String constructor failed");

    /* String(byte[] bs, int off, int len, Charset charset) */
    String start = str.substring(0, 2);
    String end = str.substring(2);
    if (enc.equals("UTF-16BE") || enc.equals("UTF-16LE")) {
        if (!(new String(bytes, 0, 4, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 4, bytes.length - 4, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    } else if (enc.equals("UTF-16")) {
        if (!(new String(bytes, 0, 6, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
    } else {
        if (!(new String(bytes, 0, 2, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 2, bytes.length - 2, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    }

    /* InputStreamReader */
    ByteArrayInputStream bi = new ByteArrayInputStream(bytes);
    InputStreamReader r = new InputStreamReader(bi, enc);
    String inEnc = r.getEncoding();
    int n = str.length();
    char[] cs = new char[n];
    for (int i = 0; i < n;) {
        int m;
        if ((m = r.read(cs, i, n - i)) < 0)
            throw new Exception(enc + ": EOF on InputStreamReader");
        i += m;
    }
    if (!(new String(cs).equals(str)))
        throw new Exception(enc + ": InputStreamReader failed");

    if (!bidir) {
        System.err.println(enc + " --> " + inEnc);
        return;
    }

    /* String.getBytes(String enc) */
    byte[] bs = str.getBytes(enc);
    if (!equals(bs, bytes))
        throw new Exception(enc + ": String.getBytes failed");

    /* String.getBytes(Charset charset) */
    bs = str.getBytes(charset);
    if (!equals(bs, bytes))
        throw new Exception(charset + ": String.getBytes failed");

    // Calls to String.getBytes(Charset) shouldn't automatically
    // use the cached thread-local encoder.
    if (charset.name().equals("UTF-16BE")) {
        String s = new String(bytes, charset);
        // Replace the thread-local encoder with this one.
        byte[] bb = s.getBytes(Charset.forName("UTF-16LE"));
        if (bytes.length != bb.length) {
            // Incidental test.
            throw new RuntimeException("unequal length: "
                                       + bytes.length + " != "
                                       + bb.length);
        } else {
            boolean diff = false;
            // Expect different byte[] between UTF-16LE and UTF-16BE
            // even though encoder was previously cached by last call
            // to getBytes().
            for (int i = 0; i < bytes.length; i++) {
                if (bytes[i] != bb[i])
                    diff = true;
            }
            if (!diff)
                throw new RuntimeException("byte arrays equal");
        }
    }

    /* OutputStreamWriter */
    ByteArrayOutputStream bo = new ByteArrayOutputStream();
    OutputStreamWriter w = new OutputStreamWriter(bo, enc);
    String outEnc = w.getEncoding();
    w.write(str);
    w.close();
    bs = bo.toByteArray();
    if (!equals(bs, bytes))
        throw new Exception(enc + ": OutputStreamWriter failed");

    System.err.println(enc + " --> " + inEnc + " / " + outEnc);
}
 
Example 14
static void go(String enc, String str, final byte[] bytes, boolean bidir)
    throws Exception
{
    final Charset charset = Charset.forName(enc);

    /* String(byte[] bs, String enc) */
    if (!(new String(bytes, enc).equals(str)))
        throw new Exception(enc + ": String constructor failed");

    /* String(byte[] bs, Charset charset) */
    if (!(new String(bytes, charset).equals(str)))
        throw new Exception(charset + ": String constructor failed");

    /* String(byte[] bs, int off, int len, Charset charset) */
    String start = str.substring(0, 2);
    String end = str.substring(2);
    if (enc.equals("UTF-16BE") || enc.equals("UTF-16LE")) {
        if (!(new String(bytes, 0, 4, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 4, bytes.length - 4, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    } else if (enc.equals("UTF-16")) {
        if (!(new String(bytes, 0, 6, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
    } else {
        if (!(new String(bytes, 0, 2, charset).equals(start)))
            throw new Exception(charset + ": String constructor failed");
        if (!(new String(bytes, 2, bytes.length - 2, charset).equals(end)))
            throw new Exception(charset + ": String constructor failed");
    }

    /* InputStreamReader */
    ByteArrayInputStream bi = new ByteArrayInputStream(bytes);
    InputStreamReader r = new InputStreamReader(bi, enc);
    String inEnc = r.getEncoding();
    int n = str.length();
    char[] cs = new char[n];
    for (int i = 0; i < n;) {
        int m;
        if ((m = r.read(cs, i, n - i)) < 0)
            throw new Exception(enc + ": EOF on InputStreamReader");
        i += m;
    }
    if (!(new String(cs).equals(str)))
        throw new Exception(enc + ": InputStreamReader failed");

    if (!bidir) {
        System.err.println(enc + " --> " + inEnc);
        return;
    }

    /* String.getBytes(String enc) */
    byte[] bs = str.getBytes(enc);
    if (!equals(bs, bytes))
        throw new Exception(enc + ": String.getBytes failed");

    /* String.getBytes(Charset charset) */
    bs = str.getBytes(charset);
    if (!equals(bs, bytes))
        throw new Exception(charset + ": String.getBytes failed");

    // Calls to String.getBytes(Charset) shouldn't automatically
    // use the cached thread-local encoder.
    if (charset.name().equals("UTF-16BE")) {
        String s = new String(bytes, charset);
        // Replace the thread-local encoder with this one.
        byte[] bb = s.getBytes(Charset.forName("UTF-16LE"));
        if (bytes.length != bb.length) {
            // Incidental test.
            throw new RuntimeException("unequal length: "
                                       + bytes.length + " != "
                                       + bb.length);
        } else {
            boolean diff = false;
            // Expect different byte[] between UTF-16LE and UTF-16BE
            // even though encoder was previously cached by last call
            // to getBytes().
            for (int i = 0; i < bytes.length; i++) {
                if (bytes[i] != bb[i])
                    diff = true;
            }
            if (!diff)
                throw new RuntimeException("byte arrays equal");
        }
    }

    /* OutputStreamWriter */
    ByteArrayOutputStream bo = new ByteArrayOutputStream();
    OutputStreamWriter w = new OutputStreamWriter(bo, enc);
    String outEnc = w.getEncoding();
    w.write(str);
    w.close();
    bs = bo.toByteArray();
    if (!equals(bs, bytes))
        throw new Exception(enc + ": OutputStreamWriter failed");

    System.err.println(enc + " --> " + inEnc + " / " + outEnc);
}