Fix race condition

src/com/flaremicro/crossjeeves/net/packet/Packet4FileData.java

@@ -17,7 +17,8 @@ public class Packet4FileData extends Packet{
 	public Packet4FileData(long fileId, short chunkSize, byte[] fileChunk) {
 		this.fileId = fileId;
 		this.chunkSize = chunkSize;
-		this.fileChunk = fileChunk;
+		this.fileChunk = new byte[chunkSize];
+		System.arraycopy(fileChunk, 0, this.fileChunk, 0, chunkSize);
 	}
 
 	public void recievePacket(DataInputStream in) throws IOException {
@@ -38,13 +39,11 @@ public class Packet4FileData extends Packet{
 		networkHandler.handlePacket(this);
 	}
 
-	public long getFileId()
-	{
+	public long getFileId() {
 		return fileId;
 	}
 
-	public byte[] getFileChunk()
-	{
+	public byte[] getFileChunk() {
 		return fileChunk;
 	}
 
@@ -53,5 +52,4 @@ public class Packet4FileData extends Packet{
 		return new Packet4FileData();
 	}
 
-
 }