[jira] Commented: (HARMONY-67) java.nio.charset.Charset.decode(ByteBuffer) throws unexpected BufferOverflowException for UTF-16BE, UTF-16LE, UTF-16 charsets.
[
http://issues.apache.org/jira/browse/HARMONY-67?page=comments#action_12366769 ]
Tim Ellison commented on HARMONY-67:
Svetlana, can you explain why you think the decode behavior is wrong?
The test, as written in our SVN repository, passes on Harmony code and the Sun
implementation of Java.
As Vladimir wrote, this may be a compatibility issue with the BEA
implementation, and I agree that our behavior is to spec.
java.nio.charset.Charset.decode(ByteBuffer) throws unexpected
BufferOverflowException for UTF-16BE, UTF-16LE, UTF-16 charsets.
---
Key: HARMONY-67
URL: http://issues.apache.org/jira/browse/HARMONY-67
Project: Harmony
Type: Bug
Components: Classlib
Reporter: Svetlana Samoilenko
Assignee: Tim Ellison
According to j2se 1.4.2 specification for Charset.decode(ByteBuffer b) the
method must not throw any exceptions.
The test listed below shows that there is unexpected BufferOverflowException
thrown if charset name is one in the following: UTF-16BE, UTF-16LE, UTF-16.
BEA does not throw any exceptions.
Code to reproduce:
import java.nio.charset.Charset;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
public class test2 {
public static void main(String[] args) throws Exception {
byte[] b = new byte[] {(byte)1};
ByteBuffer buf= ByteBuffer.wrap(b);
CharBuffer charbuf=Charset.forName(UTF-16).decode(buf);
System.out.println(CharBuffer.length()=+ charbuf.length());
}
}
Steps to Reproduce:
1. Build Harmony (check-out on 2006-01-30) j2se subset as described in
README.txt.
2. Compile test2.java using BEA 1.4 javac
javac -d . test2.java
3. Run java using compatible VM (J9)
java -showversion test2
Output:
C:\tmpC:\jrockit-j2sdk1.4.2_04\bin\java.exe -showversion test2
java version 1.4.2_04
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_04-b05)
BEA WebLogic JRockit(TM) 1.4.2_04 JVM (build
ari-31788-20040616-1132-win-ia32, Native Threads, GC strategy: parallel)
CharBuffer.length()=0
C:\tmpC:\harmony\trunk\deploy\jre\bin\java -showversion test2
(c) Copyright 1991, 2005 The Apache Software Foundation or its licensors, as
applicable.
java.nio.BufferOverflowException
at java.nio.CharBuffer.put(CharBuffer.java:662)
at java.nio.CharBuffer.put(CharBuffer.java:629)
at java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:406)
at java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:243)
at java.nio.charset.Charset.decode(Charset.java:630)
at test2.main(test2.java:8)
Suggested junit test case:
CharsetTest.java
-
import java.nio.charset.Charset;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import junit.framework.*;
public class CharsetTest extends TestCase {
public static void main(String[] args) {
junit.textui.TestRunner.run(CharsetTest.class);
}
public void test_decode() {
byte[] b = new byte[] {(byte)1};
ByteBuffer buf= ByteBuffer.wrap(b);
CharBuffer charbuf=Charset.forName(UTF-16).decode(buf);
assertEquals(Assert 0: charset UTF-16,0,charbuf.length());
charbuf=Charset.forName(UTF-16BE).decode(buf);
assertEquals(Assert 1: charset UTF-16BE,0, charbuf.length());
charbuf=Charset.forName(UTF-16LE).decode(buf);
assertEquals(Assert 2: charset UTF16LE,0, charbuf.length());
}
}
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[jira] Commented: (HARMONY-67) java.nio.charset.Charset.decode(ByteBuffer) throws unexpected BufferOverflowException for UTF-16BE, UTF-16LE, UTF-16 charsets.
[
http://issues.apache.org/jira/browse/HARMONY-67?page=comments#action_12366771 ]
Svetlana Samoilenko commented on HARMONY-67:
Tim,
I agree with Vladimir,
this condition
cs.newDecoder().onMalformedInput(CodingErrorAction.REPLACE).onUnmappableCharacter(CodingErrorAction.REPLACE).decode(bb)
is correct, it is compatibility issue.
java.nio.charset.Charset.decode(ByteBuffer) throws unexpected
BufferOverflowException for UTF-16BE, UTF-16LE, UTF-16 charsets.
---
Key: HARMONY-67
URL: http://issues.apache.org/jira/browse/HARMONY-67
Project: Harmony
Type: Bug
Components: Classlib
Reporter: Svetlana Samoilenko
Assignee: Tim Ellison
According to j2se 1.4.2 specification for Charset.decode(ByteBuffer b) the
method must not throw any exceptions.
The test listed below shows that there is unexpected BufferOverflowException
thrown if charset name is one in the following: UTF-16BE, UTF-16LE, UTF-16.
BEA does not throw any exceptions.
Code to reproduce:
import java.nio.charset.Charset;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
public class test2 {
public static void main(String[] args) throws Exception {
byte[] b = new byte[] {(byte)1};
ByteBuffer buf= ByteBuffer.wrap(b);
CharBuffer charbuf=Charset.forName(UTF-16).decode(buf);
System.out.println(CharBuffer.length()=+ charbuf.length());
}
}
Steps to Reproduce:
1. Build Harmony (check-out on 2006-01-30) j2se subset as described in
README.txt.
2. Compile test2.java using BEA 1.4 javac
javac -d . test2.java
3. Run java using compatible VM (J9)
java -showversion test2
Output:
C:\tmpC:\jrockit-j2sdk1.4.2_04\bin\java.exe -showversion test2
java version 1.4.2_04
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_04-b05)
BEA WebLogic JRockit(TM) 1.4.2_04 JVM (build
ari-31788-20040616-1132-win-ia32, Native Threads, GC strategy: parallel)
CharBuffer.length()=0
C:\tmpC:\harmony\trunk\deploy\jre\bin\java -showversion test2
(c) Copyright 1991, 2005 The Apache Software Foundation or its licensors, as
applicable.
java.nio.BufferOverflowException
at java.nio.CharBuffer.put(CharBuffer.java:662)
at java.nio.CharBuffer.put(CharBuffer.java:629)
at java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:406)
at java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:243)
at java.nio.charset.Charset.decode(Charset.java:630)
at test2.main(test2.java:8)
Suggested junit test case:
CharsetTest.java
-
import java.nio.charset.Charset;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import junit.framework.*;
public class CharsetTest extends TestCase {
public static void main(String[] args) {
junit.textui.TestRunner.run(CharsetTest.class);
}
public void test_decode() {
byte[] b = new byte[] {(byte)1};
ByteBuffer buf= ByteBuffer.wrap(b);
CharBuffer charbuf=Charset.forName(UTF-16).decode(buf);
assertEquals(Assert 0: charset UTF-16,0,charbuf.length());
charbuf=Charset.forName(UTF-16BE).decode(buf);
assertEquals(Assert 1: charset UTF-16BE,0, charbuf.length());
charbuf=Charset.forName(UTF-16LE).decode(buf);
assertEquals(Assert 2: charset UTF16LE,0, charbuf.length());
}
}
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[jira] Commented: (HARMONY-67) java.nio.charset.Charset.decode(ByteBuffer) throws unexpected BufferOverflowException for UTF-16BE, UTF-16LE, UTF-16 charsets.
[
http://issues.apache.org/jira/browse/HARMONY-67?page=comments#action_12366469 ]
Vladimir Strigun commented on HARMONY-67:
-
I don't think that this bug should be reopened. Possibly it's another
compatibility bug, and I'll try to explain why.
Specification of decode method says that A newly-allocated character buffer
containing the result of the decoding operation. will be returned. Harmony
implementation of decode buffer returns CharBuffer with length equal to 1.
Inside resulting buffer we can see one element: FFFD, i.e default replacement
for unmappable character. In compliance with spec Charset.decode(buffer)
method invoke following line:
cs.newDecoder().onMalformedInput(CodingErrorAction.REPLACE).onUnmappableCharacter(CodingErrorAction.REPLACE).decode(bb);
So, IMO Harmony implementation is fully correspond to the spec.
java.nio.charset.Charset.decode(ByteBuffer) throws unexpected
BufferOverflowException for UTF-16BE, UTF-16LE, UTF-16 charsets.
---
Key: HARMONY-67
URL: http://issues.apache.org/jira/browse/HARMONY-67
Project: Harmony
Type: Bug
Components: Classlib
Reporter: Svetlana Samoilenko
Assignee: Tim Ellison
According to j2se 1.4.2 specification for Charset.decode(ByteBuffer b) the
method must not throw any exceptions.
The test listed below shows that there is unexpected BufferOverflowException
thrown if charset name is one in the following: UTF-16BE, UTF-16LE, UTF-16.
BEA does not throw any exceptions.
Code to reproduce:
import java.nio.charset.Charset;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
public class test2 {
public static void main(String[] args) throws Exception {
byte[] b = new byte[] {(byte)1};
ByteBuffer buf= ByteBuffer.wrap(b);
CharBuffer charbuf=Charset.forName(UTF-16).decode(buf);
System.out.println(CharBuffer.length()=+ charbuf.length());
}
}
Steps to Reproduce:
1. Build Harmony (check-out on 2006-01-30) j2se subset as described in
README.txt.
2. Compile test2.java using BEA 1.4 javac
javac -d . test2.java
3. Run java using compatible VM (J9)
java -showversion test2
Output:
C:\tmpC:\jrockit-j2sdk1.4.2_04\bin\java.exe -showversion test2
java version 1.4.2_04
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_04-b05)
BEA WebLogic JRockit(TM) 1.4.2_04 JVM (build
ari-31788-20040616-1132-win-ia32, Native Threads, GC strategy: parallel)
CharBuffer.length()=0
C:\tmpC:\harmony\trunk\deploy\jre\bin\java -showversion test2
(c) Copyright 1991, 2005 The Apache Software Foundation or its licensors, as
applicable.
java.nio.BufferOverflowException
at java.nio.CharBuffer.put(CharBuffer.java:662)
at java.nio.CharBuffer.put(CharBuffer.java:629)
at java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:406)
at java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:243)
at java.nio.charset.Charset.decode(Charset.java:630)
at test2.main(test2.java:8)
Suggested junit test case:
CharsetTest.java
-
import java.nio.charset.Charset;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import junit.framework.*;
public class CharsetTest extends TestCase {
public static void main(String[] args) {
junit.textui.TestRunner.run(CharsetTest.class);
}
public void test_decode() {
byte[] b = new byte[] {(byte)1};
ByteBuffer buf= ByteBuffer.wrap(b);
CharBuffer charbuf=Charset.forName(UTF-16).decode(buf);
assertEquals(Assert 0: charset UTF-16,0,charbuf.length());
charbuf=Charset.forName(UTF-16BE).decode(buf);
assertEquals(Assert 1: charset UTF-16BE,0, charbuf.length());
charbuf=Charset.forName(UTF-16LE).decode(buf);
assertEquals(Assert 2: charset UTF16LE,0, charbuf.length());
}
}
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[jira] Commented: (HARMONY-67) java.nio.charset.Charset.decode(ByteBuffer) throws unexpected BufferOverflowException for UTF-16BE, UTF-16LE, UTF-16 charsets.
[
http://issues.apache.org/jira/browse/HARMONY-67?page=comments#action_12366450 ]
Svetlana Samoilenko commented on HARMONY-67:
Tim, I confirm that there is no exeption any more, but the result of decode
method is wrong.
Harnony returns charbuf.length())==1 while BEA returns charbuf.length())==0.
If to set UTF-8 charset, the result is equal.
java.nio.charset.Charset.decode(ByteBuffer) throws unexpected
BufferOverflowException for UTF-16BE, UTF-16LE, UTF-16 charsets.
---
Key: HARMONY-67
URL: http://issues.apache.org/jira/browse/HARMONY-67
Project: Harmony
Type: Bug
Components: Classlib
Reporter: Svetlana Samoilenko
Assignee: Tim Ellison
According to j2se 1.4.2 specification for Charset.decode(ByteBuffer b) the
method must not throw any exceptions.
The test listed below shows that there is unexpected BufferOverflowException
thrown if charset name is one in the following: UTF-16BE, UTF-16LE, UTF-16.
BEA does not throw any exceptions.
Code to reproduce:
import java.nio.charset.Charset;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
public class test2 {
public static void main(String[] args) throws Exception {
byte[] b = new byte[] {(byte)1};
ByteBuffer buf= ByteBuffer.wrap(b);
CharBuffer charbuf=Charset.forName(UTF-16).decode(buf);
System.out.println(CharBuffer.length()=+ charbuf.length());
}
}
Steps to Reproduce:
1. Build Harmony (check-out on 2006-01-30) j2se subset as described in
README.txt.
2. Compile test2.java using BEA 1.4 javac
javac -d . test2.java
3. Run java using compatible VM (J9)
java -showversion test2
Output:
C:\tmpC:\jrockit-j2sdk1.4.2_04\bin\java.exe -showversion test2
java version 1.4.2_04
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_04-b05)
BEA WebLogic JRockit(TM) 1.4.2_04 JVM (build
ari-31788-20040616-1132-win-ia32, Native Threads, GC strategy: parallel)
CharBuffer.length()=0
C:\tmpC:\harmony\trunk\deploy\jre\bin\java -showversion test2
(c) Copyright 1991, 2005 The Apache Software Foundation or its licensors, as
applicable.
java.nio.BufferOverflowException
at java.nio.CharBuffer.put(CharBuffer.java:662)
at java.nio.CharBuffer.put(CharBuffer.java:629)
at java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:406)
at java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:243)
at java.nio.charset.Charset.decode(Charset.java:630)
at test2.main(test2.java:8)
Suggested junit test case:
CharsetTest.java
-
import java.nio.charset.Charset;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import junit.framework.*;
public class CharsetTest extends TestCase {
public static void main(String[] args) {
junit.textui.TestRunner.run(CharsetTest.class);
}
public void test_decode() {
byte[] b = new byte[] {(byte)1};
ByteBuffer buf= ByteBuffer.wrap(b);
CharBuffer charbuf=Charset.forName(UTF-16).decode(buf);
assertEquals(Assert 0: charset UTF-16,0,charbuf.length());
charbuf=Charset.forName(UTF-16BE).decode(buf);
assertEquals(Assert 1: charset UTF-16BE,0, charbuf.length());
charbuf=Charset.forName(UTF-16LE).decode(buf);
assertEquals(Assert 2: charset UTF16LE,0, charbuf.length());
}
}
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[jira] Commented: (HARMONY-67) java.nio.charset.Charset.decode(ByteBuffer) throws unexpected BufferOverflowException for UTF-16BE, UTF-16LE, UTF-16 charsets.
[
http://issues.apache.org/jira/browse/HARMONY-67?page=comments#action_12365756 ]
Vladimir Strigun commented on HARMONY-67:
-
Looks like duplicate of Harmony-33
java.nio.charset.Charset.decode(ByteBuffer) throws unexpected
BufferOverflowException for UTF-16BE, UTF-16LE, UTF-16 charsets.
---
Key: HARMONY-67
URL: http://issues.apache.org/jira/browse/HARMONY-67
Project: Harmony
Type: Bug
Components: Classlib
Reporter: Svetlana Samoilenko
According to j2se 1.4.2 specification for Charset.decode(ByteBuffer b) the
method must not throw any exceptions.
The test listed below shows that there is unexpected BufferOverflowException
thrown if charset name is one in the following: UTF-16BE, UTF-16LE, UTF-16.
BEA does not throw any exceptions.
Code to reproduce:
import java.nio.charset.Charset;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
public class test2 {
public static void main(String[] args) throws Exception {
byte[] b = new byte[] {(byte)1};
ByteBuffer buf= ByteBuffer.wrap(b);
CharBuffer charbuf=Charset.forName(UTF-16).decode(buf);
System.out.println(CharBuffer.length()=+ charbuf.length());
}
}
Steps to Reproduce:
1. Build Harmony (check-out on 2006-01-30) j2se subset as described in
README.txt.
2. Compile test2.java using BEA 1.4 javac
javac -d . test2.java
3. Run java using compatible VM (J9)
java -showversion test2
Output:
C:\tmpC:\jrockit-j2sdk1.4.2_04\bin\java.exe -showversion test2
java version 1.4.2_04
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_04-b05)
BEA WebLogic JRockit(TM) 1.4.2_04 JVM (build
ari-31788-20040616-1132-win-ia32, Native Threads, GC strategy: parallel)
CharBuffer.length()=0
C:\tmpC:\harmony\trunk\deploy\jre\bin\java -showversion test2
(c) Copyright 1991, 2005 The Apache Software Foundation or its licensors, as
applicable.
java.nio.BufferOverflowException
at java.nio.CharBuffer.put(CharBuffer.java:662)
at java.nio.CharBuffer.put(CharBuffer.java:629)
at java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:406)
at java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:243)
at java.nio.charset.Charset.decode(Charset.java:630)
at test2.main(test2.java:8)
Suggested junit test case:
CharsetTest.java
-
import java.nio.charset.Charset;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import junit.framework.*;
public class CharsetTest extends TestCase {
public static void main(String[] args) {
junit.textui.TestRunner.run(CharsetTest.class);
}
public void test_decode() {
byte[] b = new byte[] {(byte)1};
ByteBuffer buf= ByteBuffer.wrap(b);
CharBuffer charbuf=Charset.forName(UTF-16).decode(buf);
assertEquals(Assert 0: charset UTF-16,0,charbuf.length());
charbuf=Charset.forName(UTF-16BE).decode(buf);
assertEquals(Assert 1: charset UTF-16BE,0, charbuf.length());
charbuf=Charset.forName(UTF-16LE).decode(buf);
assertEquals(Assert 2: charset UTF16LE,0, charbuf.length());
}
}
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