NXT :: descendant of Bitcoin - Updated Information

[timmyd]

cant update the block chain all i get is on latest version is


C:\Users\TimmyD\Desktop\next>Nxt.URL

C:\Users\TimmyD\Desktop\next>java -Xms512m -Xmx1024m -cp Nxt.zip Nxt
[2013-12-01 02:08:49.323] Nxt 0.2.19 started.
[2013-12-01 02:08:49.346] Loading transactions...
[2013-12-01 02:08:49.404] Loading peers...
[2013-12-01 02:08:49.418] Loading blocks...
[2013-12-01 02:08:49.424] Saving blocks...
[2013-12-01 02:08:49.429] ...Done
[2013-12-01 02:08:49.431] Loading accounts...
[2013-12-01 02:08:49.443] Loading assets...
[2013-12-01 02:08:49.491] Loading orders...
Exception in thread "pool-1-thread-2" java.lang.NullPointerException
        at Nxt$2.completed(Unknown Source)
        at Nxt$2.completed(Unknown Source)
        at sun.nio.ch.Invoker.invokeUnchecked(Unknown Source)
        at sun.nio.ch.Invoker$2.run(Unknown Source)
        at sun.nio.ch.AsynchronousChannelGroupImpl$1.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
Exception in thread "pool-1-thread-3" java.nio.BufferUnderflowException
        at java.nio.Buffer.nextGetIndex(Unknown Source)
        at java.nio.DirectByteBuffer.getShort(Unknown Source)
        at Nxt$Peer.process(Unknown Source)
        at Nxt$1.completed(Unknown Source)
        at Nxt$1.completed(Unknown Source)
        at sun.nio.ch.Invoker.invokeUnchecked(Unknown Source)
        at sun.nio.ch.Invoker$2.run(Unknown Source)
        at sun.nio.ch.AsynchronousChannelGroupImpl$1.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
Exception in thread "pool-1-thread-4" java.nio.BufferUnderflowException
        at java.nio.DirectByteBuffer.get(Unknown Source)
        at java.nio.ByteBuffer.get(Unknown Source)
        at Nxt$Peer.process(Unknown Source)
        at Nxt$1.completed(Unknown Source)
        at Nxt$1.completed(Unknown Source)
        at sun.nio.ch.Invoker.invokeUnchecked(Unknown Source)
        at sun.nio.ch.Invoker$2.run(Unknown Source)
        at sun.nio.ch.AsynchronousChannelGroupImpl$1.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
Exception in thread "pool-1-thread-1" java.nio.channels.ReadPendingException
        at sun.nio.ch.AsynchronousSocketChannelImpl.read(Unknown Source)
        at sun.nio.ch.AsynchronousSocketChannelImpl.read(Unknown Source)
        at java.nio.channels.AsynchronousSocketChannel.read(Unknown Source)
        at Nxt$1.completed(Unknown Source)
        at Nxt$1.completed(Unknown Source)
        at sun.nio.ch.Invoker.invokeUnchecked(Unknown Source)
        at sun.nio.ch.Invoker$2.run(Unknown Source)
        at sun.nio.ch.AsynchronousChannelGroupImpl$1.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
[2013-12-01 02:11:30.911] 3: java.nio.channels.ClosedChannelException

[Kodoka]

But what happens if two people choose the same word or phrase?

Then they share a wallet... At least until one of them sends all the fund in that wallet to a new wallet. Just use a massive string for your wallet, and there won't be any problems.

[nexern]

But what happens if two people choose the same word or phrase?

if you look at this more abstract and if i remember correct,
then there is a 'schrödingers cat' passphrase box prefilled
with 2e256 accountnumbers and you don't know which account
exist or not. well, both is true but you only know for sure
if you open the box with the right key.

but if you like to stick with the old style, you can use this as well.

-> nxt-passphrase = old-style-login-name+password

the result is the same in context of security. you see?

[Chang Hum]

But what happens if two people choose the same word or phrase?

if you look at this more abstract and if i remember correct,
then there is a 'schrödingers cat' passphrase box prefilled
with 2e256 accountnumbers and you don't know which account
exist or not. well, both is true but you only know for sure
if you open the box with the right key.

but if you like to stick with the old style, you can use this as well.

-> nxt-passphrase = old-style-login-name+password

the result is the same in context of security. you see?

Thanks for the explanation I think I get it, but regret using password1 now.

[inkadnb]

Cunicula mentioned a possible exploit in a seperate thread, maybe he implemented. I'm not at home but I can't seem to connect to nxt.c4c.io anymore.
Any updates?

[nexern]

no one hinders you from making a new account. there are many to choose from.
btw, another good thing is that you could use simple passwords if you do
like this for example:

2 x sha256sum('asmallerone')
( with linux e.g. -> /bin/echo -n asmallerone | sha256sum )

well, perhaps take a better one but this way you get a real good passphrase
and all you have to remember is a simple word with a sha multiplier.
since many boxes having sha at the console, you can recover this very easy
everywhere. very usefull for cold wallets and 'look over the shoulder save' 

[2Kool4Skewl]

Cunicula mentioned a possible exploit in a seperate thread, maybe he implemented. I'm not at home but I can't seem to connect to nxt.c4c.io anymore.
Any updates?

There is no exploit in the code.  He based his "exploit" comment on a misunderstanding.

[cunicula]

Cunicula mentioned a possible exploit in a seperate thread, maybe he implemented. I'm not at home but I can't seem to connect to nxt.c4c.io anymore.
Any updates?

There is no exploit in the code.  He based his "exploit" comment on a misunderstanding.

Confirmed. Coin-age was part of the earliest NxT design, but got removed a long time ago.
I forgot about that change. The current design does not have any problem as far as I know.

It was never an 'exploit' anyway. More of a bad design choice.
The 'fix' I suggested is exactly what the code does already.

Sounds like good news, right? Now we have a more precise understanding of development choices.

[lyynx]

Perhaps this has been discussed or is already in the works, but if not, would it not be wise to have an announcement of an available nxt.zip update within the client?

[inkadnb]

Cunicula mentioned a possible exploit in a seperate thread, maybe he implemented. I'm not at home but I can't seem to connect to nxt.c4c.io anymore.
Any updates?

There is no exploit in the code.  He based his "exploit" comment on a misunderstanding.

Confirmed. Coin-age was part of the earliest NxT design, but got removed a long time ago.
I forgot about that change. The current design does not have any problem as far as I know.

It was never an 'exploit' anyway. More of a bad design choice.
The 'fix' I suggested is exactly what the code does already.

Sounds like good news, right? Now we have a more precise understanding of development choices.

Okay awesome, I guess I misread that thread.

I rebooted my VPS, down to 16 peers from 160 :|

Also can you please write out to a log file, especially exceptions. I have no idea why mine crashed and I have no record of what happened.

Edit:

I can do

Code:

java -cp Nxt.zip Nxt > Nxt.log

for now however, this should be inherit for bug reports.

[crazybonkers]

Anyone feeling generous to help me get started 

15158452528162514778 

[Jimmy2011]

Any guide for the upgrade?

I downloaded the client yesterday, and it shows it is version 0.2.17, and now the newest version is 0.2.19, so how to upgrade the client?

Thanks.

[Kontakt]

just swap the .zip and you're clear AFAIK

[inkadnb]

Curious, what was the stakeholder buy-in cost/NXT?

[msin]

Is anyone else having issues with opening the local client?  I just downloaded the new version, but it won't launch, any ideas?  I'm using a launch.bat file.  Thanks.

[inkadnb]

Is anyone else having issues with opening the local client?  I just downloaded the new version, but it won't launch, any ideas?  I'm using a launch.bat file.  Thanks.

Could you be more specific, how are you launching it? Is there any output?

[Kontakt]

cant update the block chain all i get is on latest version is


C:\Users\TimmyD\Desktop\next>Nxt.URL

C:\Users\TimmyD\Desktop\next>java -Xms512m -Xmx1024m -cp Nxt.zip Nxt
[2013-12-01 02:08:49.323] Nxt 0.2.19 started.
[2013-12-01 02:08:49.346] Loading transactions...
[2013-12-01 02:08:49.404] Loading peers...
[2013-12-01 02:08:49.418] Loading blocks...
[2013-12-01 02:08:49.424] Saving blocks...
[2013-12-01 02:08:49.429] ...Done
[2013-12-01 02:08:49.431] Loading accounts...
[2013-12-01 02:08:49.443] Loading assets...
[2013-12-01 02:08:49.491] Loading orders...
Exception in thread "pool-1-thread-2" java.lang.NullPointerException
        at Nxt$2.completed(Unknown Source)
        at Nxt$2.completed(Unknown Source)
        at sun.nio.ch.Invoker.invokeUnchecked(Unknown Source)
        at sun.nio.ch.Invoker$2.run(Unknown Source)
        at sun.nio.ch.AsynchronousChannelGroupImpl$1.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
Exception in thread "pool-1-thread-3" java.nio.BufferUnderflowException
        at java.nio.Buffer.nextGetIndex(Unknown Source)
        at java.nio.DirectByteBuffer.getShort(Unknown Source)
        at Nxt$Peer.process(Unknown Source)
        at Nxt$1.completed(Unknown Source)
        at Nxt$1.completed(Unknown Source)
        at sun.nio.ch.Invoker.invokeUnchecked(Unknown Source)
        at sun.nio.ch.Invoker$2.run(Unknown Source)
        at sun.nio.ch.AsynchronousChannelGroupImpl$1.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
Exception in thread "pool-1-thread-4" java.nio.BufferUnderflowException
        at java.nio.DirectByteBuffer.get(Unknown Source)
        at java.nio.ByteBuffer.get(Unknown Source)
        at Nxt$Peer.process(Unknown Source)
        at Nxt$1.completed(Unknown Source)
        at Nxt$1.completed(Unknown Source)
        at sun.nio.ch.Invoker.invokeUnchecked(Unknown Source)
        at sun.nio.ch.Invoker$2.run(Unknown Source)
        at sun.nio.ch.AsynchronousChannelGroupImpl$1.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
Exception in thread "pool-1-thread-1" java.nio.channels.ReadPendingException
        at sun.nio.ch.AsynchronousSocketChannelImpl.read(Unknown Source)
        at sun.nio.ch.AsynchronousSocketChannelImpl.read(Unknown Source)
        at java.nio.channels.AsynchronousSocketChannel.read(Unknown Source)
        at Nxt$1.completed(Unknown Source)
        at Nxt$1.completed(Unknown Source)
        at sun.nio.ch.Invoker.invokeUnchecked(Unknown Source)
        at sun.nio.ch.Invoker$2.run(Unknown Source)
        at sun.nio.ch.AsynchronousChannelGroupImpl$1.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
[2013-12-01 02:11:30.911] 3: java.nio.channels.ClosedChannelException

I'm getting this error.

[msin]

Is anyone else having issues with opening the local client?  I just downloaded the new version, but it won't launch, any ideas?  I'm using a launch.bat file.  Thanks.

Could you be more specific, how are you launching it? Is there any output?

I created a launch.bat file in the same folder as the Nxt zip file (java -cp Nxt.zip Nxt).  When I enter the local host in the web browser it just times out.  I was logging in fine yesterday, then stopped working today, realized there was a new version so I downloaded, but still no dice.

[msin]

Is anyone else having issues with opening the local client?  I just downloaded the new version, but it won't launch, any ideas?  I'm using a launch.bat file.  Thanks.

Could you be more specific, how are you launching it? Is there any output?

I created a launch.bat file in the same folder as the Nxt zip file (java -cp Nxt.zip Nxt).  When I enter the local host in the web browser it just times out.  I was logging in fine yesterday, then stopped working today, realized there was a new version so I downloaded, but still no dice.

To be more specific, I'm getting this:

C:\nxtcoin>java -cp Nxt.zip Nxt
Exception in thread "main" java.lang.NoClassDefFoundError: Nxt
Caused by: java.lang.ClassNotFoundException: Nxt
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
Could not find the main class: Nxt.  Program will exit.

[inkadnb]

Is anyone else having issues with opening the local client?  I just downloaded the new version, but it won't launch, any ideas?  I'm using a launch.bat file.  Thanks.

Could you be more specific, how are you launching it? Is there any output?

I created a launch.bat file in the same folder as the Nxt zip file (java -cp Nxt.zip Nxt).  When I enter the local host in the web browser it just times out.  I was logging in fine yesterday, then stopped working today, realized there was a new version so I downloaded, but still no dice.

-snip-

Are you using the latest JRE?

The error you're getting is almost like your zip doesn't have the Nxt class.

Try redownloading the zip.