Add missing license headers, other cleanups (#471)

* releasing 20.1.2

* add license headers. remove dangling imports

* dont call the example on start

Author: om26er

autobahn/src/main/java/xbr/network/KeySeries.java

@@ -1,3 +1,14 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+//   AutobahnJava - http://crossbar.io/autobahn
+//
+//   Copyright (c) Crossbar.io Technologies GmbH and contributors
+//
+//   Licensed under the MIT License.
+//   http://www.opensource.org/licenses/mit-license.php
+//
+///////////////////////////////////////////////////////////////////////////////
+
 package xbr.network;
 
 import com.fasterxml.jackson.core.JsonProcessingException;

autobahn/src/main/java/xbr/network/SimpleBuyer.java

@@ -1,37 +1,36 @@
-package xbr.network;
+///////////////////////////////////////////////////////////////////////////////
+//
+//   AutobahnJava - http://crossbar.io/autobahn
+//
+//   Copyright (c) Crossbar.io Technologies GmbH and contributors
+//
+//   Licensed under the MIT License.
+//   http://www.opensource.org/licenses/mit-license.php
+//
+///////////////////////////////////////////////////////////////////////////////
 
+package xbr.network;
 
 import com.fasterxml.jackson.core.type.TypeReference;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.dataformat.cbor.CBORFactory;
 
-import org.bouncycastle.jcajce.provider.asymmetric.ec.KeyFactorySpi;
-import org.bouncycastle.jce.ECKeyUtil;
-import org.bouncycastle.jce.interfaces.ECKey;
 import org.json.JSONException;
 import org.libsodium.jni.SodiumConstants;
-import org.web3j.abi.datatypes.generated.Uint256;
 import org.web3j.crypto.Credentials;
 import org.web3j.crypto.ECKeyPair;
-import org.web3j.crypto.Hash;
-import org.web3j.crypto.Keys;
 import org.web3j.utils.Numeric;
 
 import java.io.IOException;
 import java.math.BigInteger;
-import java.nio.file.FileAlreadyExistsException;
 import java.security.SecureRandom;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
-import java.util.Map;
 import java.util.concurrent.CompletableFuture;
 
 import io.crossbar.autobahn.wamp.Session;
 import io.crossbar.autobahn.wamp.exceptions.ApplicationError;
-import io.crossbar.autobahn.wamp.messages.Hello;
-import io.crossbar.autobahn.wamp.serializers.CBORSerializer;
-import io.reactivex.internal.util.HashMapSupplier;
 
 import static org.libsodium.jni.NaCl.sodium;
 
@@ -134,14 +133,12 @@ public CompletableFuture<HashMap<String, Object>> balance() {
             if (throwable != null) {
                 future.completeExceptionally(throwable);
             } else {
-                System.out.println(paymentBalance);
                 mRemainingBalance = new BigInteger((byte[]) paymentBalance.get("remaining"));
                 HashMap<String, Object> res = new HashMap<>();
                 res.put("amount", paymentBalance.get("amount"));
                 res.put("remaining", mRemainingBalance);
                 res.put("inflight", paymentBalance.get("inflight"));
                 mSeq = (int) paymentBalance.get("seq");
-                System.out.println(mRemainingBalance);
                 future.complete(res);
             }
         });
@@ -202,7 +199,6 @@ public CompletableFuture<Object> unwrap(byte[] keyID, String encSerializer, byte
                     int channelSeq = mSeq + 1;
                     boolean isFinal = false;
                     try {
-                        System.out.println(quote);
                         byte[] signature = Util.signEIP712Data(mECKey, channelAddr, channelSeq,
                                 mRemainingBalance.subtract(price), isFinal);
                         BigInteger remainingPost = mRemainingBalance.subtract(price);

autobahn/src/main/java/xbr/network/SimpleSeller.java

@@ -1,3 +1,14 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+//   AutobahnJava - http://crossbar.io/autobahn
+//
+//   Copyright (c) Crossbar.io Technologies GmbH and contributors
+//
+//   Licensed under the MIT License.
+//   http://www.opensource.org/licenses/mit-license.php
+//
+///////////////////////////////////////////////////////////////////////////////
+
 package xbr.network;
 
 import com.fasterxml.jackson.core.JsonProcessingException;

autobahn/src/main/java/xbr/network/Util.java

@@ -1,5 +1,15 @@
-package xbr.network;
+///////////////////////////////////////////////////////////////////////////////
+//
+//   AutobahnJava - http://crossbar.io/autobahn
+//
+//   Copyright (c) Crossbar.io Technologies GmbH and contributors
+//
+//   Licensed under the MIT License.
+//   http://www.opensource.org/licenses/mit-license.php
+//
+///////////////////////////////////////////////////////////////////////////////
 
+package xbr.network;
 
 import org.json.JSONArray;
 import org.json.JSONException;

demo-gallery/src/main/java/io/crossbar/autobahn/demogallery/android/MainActivity.java

@@ -18,7 +18,6 @@
 import androidx.appcompat.app.AppCompatActivity;
 
 import io.crossbar.autobahn.demogallery.R;
-import io.crossbar.autobahn.demogallery.xbr.Buyer;
 
 
 public class MainActivity extends AppCompatActivity implements View.OnClickListener {

demo-gallery/src/main/java/io/crossbar/autobahn/demogallery/xbr/Buyer.java

@@ -1,19 +1,23 @@
-package io.crossbar.autobahn.demogallery.xbr;
+///////////////////////////////////////////////////////////////////////////////
+//
+//   AutobahnJava - http://crossbar.io/autobahn
+//
+//   Copyright (c) Crossbar.io Technologies GmbH and contributors
+//
+//   Licensed under the MIT License.
+//   http://www.opensource.org/licenses/mit-license.php
+//
+///////////////////////////////////////////////////////////////////////////////
 
-import com.fasterxml.jackson.core.JsonProcessingException;
+package io.crossbar.autobahn.demogallery.xbr;
 
 import java.math.BigInteger;
-import java.util.ArrayList;
-import java.util.HashMap;
 import java.util.List;
-import java.util.Map;
 
 import io.crossbar.autobahn.wamp.Client;
 import io.crossbar.autobahn.wamp.Session;
-import io.crossbar.autobahn.wamp.types.PublishOptions;
 import io.crossbar.autobahn.wamp.types.SessionDetails;
 import xbr.network.SimpleBuyer;
-import xbr.network.SimpleSeller;
 import xbr.network.Util;
 
 public class Buyer {
@@ -40,7 +44,7 @@ private void onJoin(Session session, SessionDetails details) {
         mBuyer = new SimpleBuyer(
                 "0x3e5e9111ae8eb78fe1cc3bb8915d5d461f3ef9a9",
                 "395df67f0c2d2d9fe1ad08d1bc8b6627011959b79c53d7dd6a3536a33ab8a4fd",
-                Util.toXBR(100)
+                Util.toXBR(50)
         );
         mBuyer.start(session, details.authid).whenComplete((balance, throwable) -> {
             mRemainingBalance = balance;

demo-gallery/src/main/java/io/crossbar/autobahn/demogallery/xbr/Seller.java

@@ -1,3 +1,14 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+//   AutobahnJava - http://crossbar.io/autobahn
+//
+//   Copyright (c) Crossbar.io Technologies GmbH and contributors
+//
+//   Licensed under the MIT License.
+//   http://www.opensource.org/licenses/mit-license.php
+//
+///////////////////////////////////////////////////////////////////////////////
+
 package io.crossbar.autobahn.demogallery.xbr;
 
 import com.fasterxml.jackson.core.JsonProcessingException;