Extremely large payloads fail without a good error message

[niloc132]

Truncated stack trace:

java.lang.IllegalArgumentException
    at java.nio.ByteBuffer.allocate(ByteBuffer.java:334)
    at org.gwtproject.rpc.serialization.stream.bytebuffer.ByteBufferSerializationStreamWriter.maybeGrow(ByteBufferSerializationStreamWriter.java:145)
    at org.gwtproject.rpc.serialization.stream.bytebuffer.ByteBufferSerializationStreamWriter.writeInt(ByteBufferSerializationStreamWriter.java:138)
    at org.gwtproject.rpc.serialization.api.impl.AbstractSerializationStreamWriter.writeString(AbstractSerializationStreamWriter.java:119)
    at org.gwtproject.rpc.serialization.api.emuljava.lang.String_ArrayRank_1_FieldSerializer.serialize(String_ArrayRank_1_FieldSerializer.java:25)
    at org.gwtproject.rpc.serialization.api.emuljava.lang.String_ArrayRank_1_FieldSerializer$WriteInstantiateReadInstantiate.serial(String_ArrayRank_1_FieldSerializer.java:70)
    at org.gwtproject.rpc.serialization.api.impl.TypeSerializerImpl.serialize(TypeSerializerImpl.java:28)
    at org.gwtproject.rpc.serialization.stream.bytebuffer.ByteBufferSerializationStreamWriter.serialize(ByteBufferSerializationStreamWriter.java:175)
    at org.gwtproject.rpc.serialization.api.impl.AbstractSerializationStreamWriter.writeObject(AbstractSerializationStreamWriter.java:111)
...

We can't stop the user from trying to send 2gb+ of data (the largest that a given ByteBuffer can get), but we can provide better error messages around this.