java.lang.NoClassDefFoundError: Lorg/apache/hadoop/security/Credentials;
	at java.lang.Class.getDeclaredFields0(Native Method)
	at java.lang.Class.privateGetDeclaredFields(Class.java:2583)
	at java.lang.Class.getDeclaredField(Class.java:2068)
	at java.io.ObjectStreamClass.getDeclaredSUID(ObjectStreamClass.java:1703)
	at java.io.ObjectStreamClass.access$700(ObjectStreamClass.java:72)
	at java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:484)
	at java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:472)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.io.ObjectStreamClass.<init>(ObjectStreamClass.java:472)
	at java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:369)
	at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:598)
	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1843)
	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1713)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2000)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:422)
	at org.apache.ignite.internal.util.IgniteUtils.readArray(IgniteUtils.java:1679)
	at org.apache.ignite.internal.processors.hadoop.proto.HadoopProtocolTaskArguments.readExternal(HadoopProtocolTaskArguments.java:77)
	at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:2076)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2025)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:422)
	at org.apache.ignite.internal.processors.rest.client.message.GridClientTaskRequest.readExternal(GridClientTaskRequest.java:118)
	at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:2076)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2025)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:422)
	at org.apache.ignite.internal.client.marshaller.jdk.GridClientJdkMarshaller.unmarshal(GridClientJdkMarshaller.java:66)
	at org.apache.ignite.internal.processors.rest.protocols.tcp.GridTcpRestParser.parseClientMessage(GridTcpRestParser.java:538)
	at org.apache.ignite.internal.processors.rest.protocols.tcp.GridTcpRestParser.parseCustomPacket(GridTcpRestParser.java:450)
	at org.apache.ignite.internal.processors.rest.protocols.tcp.GridTcpRestParser.decode(GridTcpRestParser.java:166)
	at org.apache.ignite.internal.processors.rest.protocols.tcp.GridTcpRestParser.decode(GridTcpRestParser.java:70)
	at org.apache.ignite.internal.util.nio.GridNioCodecFilter.onMessageReceived(GridNioCodecFilter.java:114)
	at org.apache.ignite.internal.util.nio.GridNioFilterAdapter.proceedMessageReceived(GridNioFilterAdapter.java:109)
	at org.apache.ignite.internal.util.nio.GridNioServer$HeadFilter.onMessageReceived(GridNioServer.java:3385)
	at org.apache.ignite.internal.util.nio.GridNioFilterChain.onMessageReceived(GridNioFilterChain.java:175)
	at org.apache.ignite.internal.util.nio.GridNioServer$ByteBufferNioClientWorker.processRead(GridNioServer.java:1096)
	at org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.processSelectedKeysOptimized(GridNioServer.java:2272)
	at org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.bodyInternal(GridNioServer.java:2048)
	at org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.body(GridNioServer.java:1717)
	at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.security.Credentials
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 42 more