Elasticsearch 1.3.2 java api setScript throws exception on execution

In Elasticsearch java api version 1.3.2, the "setScript()" method does not work by default, like the examples given in Elasticsearch home site. I tried the following, but it threw an exception on execution.

UpdateResponse ur = null;
Map par = new HashMap();
par.put("nsite", "newfield");
par.put("docid", "56783");
ur = client.prepareUpdate(index, type, id)
     .setScriptParams(par)
     .setScript("ctx._source.sites.nsite=docid",ScriptService.ScriptType.INLINE)
     .execute().actionGet();                
System.out.println("updated for "+site);

(Note:- in latest version, Elasticsearch requires two params for "setScript" method) .setScript("ctx._source.sites.nsite=docid") => wrong method signature, script type is mandatory param now.

On running this i got the "Execution exception" as follows:

Exception in thread "main" org.elasticsearch.transport.TransportSerializationException: Failed to deserialize exception response from stream
    at org.elasticsearch.transport.netty.MessageChannelHandler.handlerResponseError(MessageChannelHandler.java:173)
    at org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(MessageChannelHandler.java:125)
    at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
    at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:296)
    at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:462)
    at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:443)
    at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:310)
    at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
    at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:268)
    at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:255)
    at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)
    at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)
    at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)
    at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:722)
Caused by: java.io.StreamCorruptedException: unexpected end of block data
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1369)
    at java.io.ObjectInputStream.access$300(ObjectInputStream.java:205)
    at java.io.ObjectInputStream$GetFieldImpl.readFields(ObjectInputStream.java:2132)
    at java.io.ObjectInputStream.readFields(ObjectInputStream.java:537)
    at java.net.InetSocketAddress.readObject(InetSocketAddress.java:282)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1004)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1872)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1777)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1347)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1970)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1894)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1777)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1347)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1970)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1894)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1777)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1347)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:369)
    at org.elasticsearch.transport.netty.MessageChannelHandler.handlerResponseError(MessageChannelHandler.java:171)
    ... 23 more