android.util.Log#wtf ))

funny android developers: android.util.Log#wtf

"What a Terrible Failure: Report a condition that should never happen. The error will always be logged at level ASSERT with the call stack..."

Ubuntu x64, avd device creation error

in order to use android sdk in ubuntu (12.04) x64 you need to install x32 java libraries (~270mb), otherwise: Error: Failed to create the SD card

netty 3.5.1 bundle in Felix 3.2.1 osgi Container = ClassNotFoundException

netty 3.5.1 started in osgi (felix 3.2.1):

...
[org.jboss.netty.util.internal.QueueFactory] - Unable to instance LinkedTransferQueue, fallback to LegacyLinkedTransferQueue
java.lang.NoClassDefFoundError: Could not initialize class org.jboss.netty.util.internal.LinkedTransferQueue
 at org.jboss.netty.util.internal.QueueFactory.createQueue(QueueFactory.java:53) ~[na:na]
 at org.jboss.netty.channel.socket.nio.AbstractNioWorker.(AbstractNioWorker.java:111) ~[netty-3.5.1.Final.jar:na]
 at org.jboss.netty.channel.socket.nio.NioWorker.(NioWorker.java:44) ~[netty-3.5.1.Final.jar:na]
 at org.jboss.netty.channel.socket.nio.NioWorkerPool.createWorker(NioWorkerPool.java:34) ~[netty-3.5.1.Final.jar:na]
 at org.jboss.netty.channel.socket.nio.NioWorkerPool.createWorker(NioWorkerPool.java:26) ~[netty-3.5.1.Final.jar:na]
 at org.jboss.netty.channel.socket.nio.AbstractNioWorkerPool.(AbstractNioWorkerPool.java:58) ~[netty-3.5.1.Final.jar:na]
 at org.jboss.netty.channel.socket.nio.NioWorkerPool.(NioWorkerPool.java:29) ~[netty-3.5.1.Final.jar:na]
 at org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory.(NioClientSocketChannelFactory.java:149) ~[netty-3.5.1.Final.jar:na]
 at org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory.(NioClientSocketChannelFactory.java:114) ~[netty-3.5.1.Final.jar:na]
...

If you debug and dig into netty source code - you'll find more descriptive exception: java.lang.ClassNotFoundException: sun.misc.Unsafe not found by org.jboss.netty

The problem seems that osgi container doesn't normally expose sun.misc.* internals, so the application cannot find it, though it's Oracle Jdk 1.6 with this stuff inside.

Looking further to the source code - you'll find the workaround: -Dorg.jboss.netty.tryUnsafe=false

p.s. issue discussion on the netty github tracker