I look at sourcecode in mina ByteBuffer:
ObjectInputStream in = new ObjectInputStream(asInputStream()) {
protected ObjectStreamClass readClassDescriptor()
throws IOException, ClassNotFoundException {
String className = readUTF();
Class<?> clazz = Class
.forName(className, true, classLoader);
return ObjectStreamClass.lookup(clazz);
}
}
why overrides ObjectInputStream.readClassDescriptor()??
tiandike wrote:
>
> My request has a Map and put a Class[] params in this map , and I put a
> long class in the params.
>
> Class[] c= {long.class,int.class};
> Map map = new HashMap();
> map.put(1, c);
>
>
> I find exception is in the code ByteBuffer.getObject:
>
> String className = readUTF();
> Class<?> clazz = Class
> .forName(className, true, classLoader);
> return ObjectStreamClass.lookup(clazz);
>
> when className is long ,Class.forName throws exception:
>
> my mina version is 1.1.4
>
>
> Trustin Lee wrote:
>>
>> Please provide me some code that reproduces your problem.
>>
>> Thanks in advance,
>> Trustin
>>
>> On Nov 14, 2007 11:59 AM, tiandike <[EMAIL PROTECTED]> wrote:
>>>
>>> I debug in my mina server :
>>> and find exception:
>>>
>>> org.apache.mina.common.BufferDataException:
>>> java.io.InvalidClassException:
>>> failed to read class descriptor
>>> at
>>> org.apache.mina.common.ByteBuffer.getObject(ByteBuffer.java:1487)
>>> at
>>> org.apache.mina.filter.codec.serialization.ObjectSerializationDecoder.doDecode(ObjectSerializationDecoder.java:92)
>>> at
>>> org.apache.mina.filter.codec.CumulativeProtocolDecoder.decode(CumulativeProtocolDecoder.java:133)
>>> at
>>> org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:159)
>>> at
>>> org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(AbstractIoFilterChain.java:299)
>>> at
>>> org.apache.mina.common.support.AbstractIoFilterChain.access$1100(AbstractIoFilterChain.java:53)
>>> at
>>> org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceived(AbstractIoFilterChain.java:648)
>>> at
>>> org.apache.mina.common.support.AbstractIoFilterChain$HeadFilter.messageReceived(AbstractIoFilterChain.java:499)
>>> at
>>> org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(AbstractIoFilterChain.java:299)
>>> at
>>> org.apache.mina.common.support.AbstractIoFilterChain.fireMessageReceived(AbstractIoFilterChain.java:293)
>>> at
>>> org.apache.mina.transport.socket.nio.SocketIoProcessor.read(SocketIoProcessor.java:218)
>>> at
>>> org.apache.mina.transport.socket.nio.SocketIoProcessor.process(SocketIoProcessor.java:188)
>>> at
>>> org.apache.mina.transport.socket.nio.SocketIoProcessor.access$400(SocketIoProcessor.java:44)
>>> at
>>> org.apache.mina.transport.socket.nio.SocketIoProcessor$Worker.run(SocketIoProcessor.java:464)
>>> at
>>> org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:51)
>>> at
>>> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
>>> at
>>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
>>> at java.lang.Thread.run(Thread.java:619)
>>> Caused by: java.io.InvalidClassException: failed to read class
>>> descriptor
>>> at
>>> java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1567)
>>> at
>>> java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496)
>>> at
>>> java.io.ObjectInputStream.readClass(ObjectInputStream.java:1462)
>>> at
>>> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1312)
>>> at
>>> java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667)
>>> at
>>> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
>>> at
>>> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
>>> at
>>> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
>>> at
>>> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
>>> at
>>> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
>>> at
>>> java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
>>> at java.util.HashMap.readObject(HashMap.java:1030)
>>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>> at
>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>>> at
>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>> at java.lang.reflect.Method.invoke(Method.java:597)
>>> at
>>> java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
>>> at
>>> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1846)
>>> at
>>> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
>>> at
>>> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
>>> at
>>> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
>>> at
>>> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
>>> at
>>> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
>>> at
>>> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
>>> at
>>> java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
>>> at
>>> org.apache.mina.common.ByteBuffer.getObject(ByteBuffer.java:1485)
>>> ... 17 more
>>> Caused by: java.lang.ClassNotFoundException: long
>>> at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
>>> at java.security.AccessController.doPrivileged(Native Method)
>>> at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
>>> at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
>>> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
>>> at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
>>> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
>>> at java.lang.Class.forName0(Native Method)
>>> at java.lang.Class.forName(Class.java:247)
>>> at
>>> org.apache.mina.common.ByteBuffer$3.readClassDescriptor(ByteBuffer.java:1480)
>>> at
>>> java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1565)
>>> ... 42 more
>>>
>>>
>>>
>>>
>>> tiandike wrote:
>>> >
>>> > I use ObjectSerializationCodecFactory in my mina server and client app
>>> .
>>> >
>>> > I define a Map field in my requestmessage and in this Map i put
>>> Object[]
>>> > args and Class[] clazzes;
>>> > in the first bytebuffer I use Long ,but the seconde bytebuffer i use
>>> > long.
>>> >
>>> > I find first bytebuffer can be sent to mina server, but the second
>>> can't .
>>> > first
>>> > DirectBuffer[pos=0 lim=440 cap=512: 00 00 01 B4 AC ED 00 05 73 72 00
>>> 34 63
>>> > 6F 6D 2E 74 61 6F 62 61 6F 2E 75 69 63 2E 74 68 75 6E 64 65 72 62 69
>>> 72 64
>>> > 2E 6D 65 73 73 61 67 65 2E 44 65 66 61 75 6C 74 55 49 43 52 65 71 75
>>> 65 73
>>> > 74 78 72 00 35 63 6F 6D 2E 74 61 6F 62 61 6F 2E 75 69 63 2E 74 68 75
>>> 6E 64
>>> > 65 72 62 69 72 64 2E 6D 65 73 73 61 67 65 2E 41 62 73 74 72 61 63 74
>>> 55 49
>>> > 43 4D 65 73 73 61 67 65 78 70 73 72 00 11 6A 61 76 61 2E 75 74 69 6C
>>> 2E 48
>>> > 61 73 68 4D 61 70 78 70 3F 40 00 00 00 00 00 0C 77 08 00 00 00 10 00
>>> 00 00
>>> > 01 74 00 0D 5F 64 65 66 61 75 6C 74 4D 6F 64 65 6C 73 72 00 26 63 6F
>>> 6D 2E
>>> > 74 61 6F 62 61 6F 2E 75 69 63 2E 63 6C 61 77 2E 63 6C 69 65 6E 74 2E
>>> 43 6C
>>> > 61 77 43 6F 6E 74 65 78 74 78 70 74 00 07 67 65 74 44 61 74 61 75 72
>>> 00 13
>>> > 5B 4C 6A 61 76 61 2E 6C 61 6E 67 2E 4F 62 6A 65 63 74 3B 78 70 00 00
>>> 00 02
>>> > 73 72 00 0E 6A 61 76 61 2E 6C 61 6E 67 2E 4C 6F 6E 67 78 72 00 10 6A
>>> 61 76
>>> > 61 2E 6C 61 6E 67 2E 4E 75 6D 62 65 72 78 70 00 00 00 00 07 39 89 4C
>>> 74 00
>>> > 12 64 61 74 61 2D 69 6E 66 6F 2D 75 73 65 72 64 61 74 61 75 72 00 12
>>> 5B 4C
>>> > 6A 61 76 61 2E 6C 61 6E 67 2E 43 6C 61 73 73 3B 78 70 00 00 00 02 76
>>> 72 00
>>> > 04 6C 6F 6E 67 78 70 76 72 00 10 6A 61 76 61 2E 6C 61 6E 67 2E 53 74
>>> 72 69
>>> > 6E 67 78 70 78 73 71 00 7E 00 0B 00 00 00 00 00 00 00 01 01 70 74 00
>>> 08 75
>>> > 73 65 72 64 61 74 61 74 00 0F 75 73 65 72 44 61 74 61 53 65 72 76 69
>>> 63 65
>>> > 70 70]
>>> > second
>>> > DirectBuffer[pos=0 lim=436 cap=512: 00 00 01 B0 AC ED 00 05 73 72 00
>>> 34 63
>>> > 6F 6D 2E 74 61 6F 62 61 6F 2E 75 69 63 2E 74 68 75 6E 64 65 72 62 69
>>> 72 64
>>> > 2E 6D 65 73 73 61 67 65 2E 44 65 66 61 75 6C 74 55 49 43 52 65 71 75
>>> 65 73
>>> > 74 78 72 00 35 63 6F 6D 2E 74 61 6F 62 61 6F 2E 75 69 63 2E 74 68 75
>>> 6E 64
>>> > 65 72 62 69 72 64 2E 6D 65 73 73 61 67 65 2E 41 62 73 74 72 61 63 74
>>> 55 49
>>> > 43 4D 65 73 73 61 67 65 78 70 73 72 00 11 6A 61 76 61 2E 75 74 69 6C
>>> 2E 48
>>> > 61 73 68 4D 61 70 78 70 3F 40 00 00 00 00 00 0C 77 08 00 00 00 10 00
>>> 00 00
>>> > 01 74 00 0D 5F 64 65 66 61 75 6C 74 4D 6F 64 65 6C 73 72 00 26 63 6F
>>> 6D 2E
>>> > 74 61 6F 62 61 6F 2E 75 69 63 2E 63 6C 61 77 2E 63 6C 69 65 6E 74 2E
>>> 43 6C
>>> > 61 77 43 6F 6E 74 65 78 74 78 70 74 00 07 67 65 74 44 61 74 61 75 72
>>> 00 13
>>> > 5B 4C 6A 61 76 61 2E 6C 61 6E 67 2E 4F 62 6A 65 63 74 3B 78 70 00 00
>>> 00 02
>>> > 73 72 00 0E 6A 61 76 61 2E 6C 61 6E 67 2E 4C 6F 6E 67 78 72 00 10 6A
>>> 61 76
>>> > 61 2E 6C 61 6E 67 2E 4E 75 6D 62 65 72 78 70 00 00 00 00 07 39 89 4C
>>> 74 00
>>> > 12 64 61 74 61 2D 69 6E 66 6F 2D 75 73 65 72 64 61 74 61 75 72 00 12
>>> 5B 4C
>>> > 6A 61 76 61 2E 6C 61 6E 67 2E 43 6C 61 73 73 3B 78 70 00 00 00 02 76
>>> 71 00
>>> > 7E 00 0B 76 72 00 10 6A 61 76 61 2E 6C 61 6E 67 2E 53 74 72 69 6E 67
>>> 78 70
>>> > 78 73 71 00 7E 00 0B 00 00 00 00 00 00 00 01 01 70 74 00 08 75 73 65
>>> 72 64
>>> > 61 74 61 74 00 0F 75 73 65 72 44 61 74 61 53 65 72 76 69 63 65 70 70]
>>> >
>>> > /////////////////////
>>> > in SocketIoProcessor doFlush(SocketSessionImpl session) , i find the
>>> code
>>> > below are executed in these two condition.
>>> >
>>> > if (key.isWritable()) {
>>> > writtenBytes += ch.write(buf.buf());
>>> > }
>>> >
>>> > I don't know why! it's so strange!
>>> >
>>> >
>>>
>>> --
>>> View this message in context:
>>> http://www.nabble.com/a-question-about-codec.serialization-tf4801841s16868.html#a13739039
>>>
>>> Sent from the Apache MINA Support Forum mailing list archive at
>>> Nabble.com.
>>>
>>>
>>
>>
>>
>> --
>> what we call human nature is actually human habit
>> --
>> http://gleamynode.net/
>> --
>> PGP Key ID: 0x0255ECA6
>>
>>
>
>
--
View this message in context:
http://www.nabble.com/a-question-about-codec.serialization-tf4801841s16868.html#a13764446
Sent from the Apache MINA Support Forum mailing list archive at Nabble.com.
