Adapting for Ethereum as a library style:

+ double chain loading but solved

ethereumj-core/src/main/java/org/ethereum/facade/Ethereum.java

@@ -71,8 +71,6 @@ public interface Ethereum {
 
     public void addListener(EthereumListener listener);
 
-    public void loadBlockChain();
-
 
     public ClientPeer getDefaultPeer();
 

ethereumj-core/src/main/java/org/ethereum/facade/EthereumImpl.java

@@ -132,11 +132,6 @@ public class EthereumImpl implements Ethereum {
         WorldManager.getInstance().addListener(listener);
     }
 
-    @Override
-    public void loadBlockChain() {
-        WorldManager.getInstance().loadBlockchain();
-    }
-
     @Override
     public boolean isBlockChainLoading() {
         return WorldManager.getInstance().isBlockChainLoading();

ethereumj-studio/src/main/java/org/ethereum/gui/ToolBar.java

@@ -1,6 +1,7 @@
 package org.ethereum.gui;
 
 import org.ethereum.config.SystemProperties;
+import org.ethereum.facade.Ethereum;
 import org.ethereum.util.Utils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -228,7 +229,7 @@ public class ToolBar extends JFrame {
         cp.add(chainToggle);
         cp.add(walletToggle);
 
-        UIEthereumManager.ethereum.loadBlockChain();
+        Ethereum ethereum = UIEthereumManager.ethereum;
 
     }