diff --git a/lib/modAvmVersion2.jar b/lib/modAvmVersion2.jar
index 387bcce5ab..bb8e7bcc72 100644
Binary files a/lib/modAvmVersion2.jar and b/lib/modAvmVersion2.jar differ
diff --git a/lib/org-aion-avm-api-v2.jar b/lib/org-aion-avm-api-v2.jar
index c719442d44..fb70ebda65 100644
Binary files a/lib/org-aion-avm-api-v2.jar and b/lib/org-aion-avm-api-v2.jar differ
diff --git a/lib/org-aion-avm-core-v2.jar b/lib/org-aion-avm-core-v2.jar
index ccc1abc044..7581c25312 100644
Binary files a/lib/org-aion-avm-core-v2.jar and b/lib/org-aion-avm-core-v2.jar differ
diff --git a/lib/org-aion-avm-rt-v2.jar b/lib/org-aion-avm-rt-v2.jar
index 779b6cdb0b..8779701c8d 100644
Binary files a/lib/org-aion-avm-rt-v2.jar and b/lib/org-aion-avm-rt-v2.jar differ
diff --git a/lib/org-aion-avm-tooling-v2.jar b/lib/org-aion-avm-tooling-v2.jar
index fc482214de..ba231b8e7f 100644
Binary files a/lib/org-aion-avm-tooling-v2.jar and b/lib/org-aion-avm-tooling-v2.jar differ
diff --git a/lib/org-aion-avm-userlib-v2.jar b/lib/org-aion-avm-userlib-v2.jar
index dbab7baccc..d5c4b3b7a2 100644
Binary files a/lib/org-aion-avm-userlib-v2.jar and b/lib/org-aion-avm-userlib-v2.jar differ
diff --git a/lib/org-aion-avm-utilities-v2.jar b/lib/org-aion-avm-utilities-v2.jar
index 2210e3b30e..27cbe3b3d4 100644
Binary files a/lib/org-aion-avm-utilities-v2.jar and b/lib/org-aion-avm-utilities-v2.jar differ
diff --git a/modAvmVersion2/src/org/aion/avm/version2/ContractFactory.java b/modAvmVersion2/src/org/aion/avm/version2/ContractFactory.java
index a42e3a13e8..7328e27a8f 100644
--- a/modAvmVersion2/src/org/aion/avm/version2/ContractFactory.java
+++ b/modAvmVersion2/src/org/aion/avm/version2/ContractFactory.java
@@ -2,11 +2,8 @@
 
 import org.aion.avm.core.dappreading.UserlibJarBuilder;
 import org.aion.avm.stub.IContractFactory;
+import org.aion.avm.tooling.deploy.OptimizedJarBuilder;
 import org.aion.avm.userlib.CodeAndArguments;
-import org.aion.avm.userlib.abi.ABIDecoder;
-import org.aion.avm.userlib.abi.ABIEncoder;
-import org.aion.avm.userlib.abi.ABIException;
-import org.aion.avm.userlib.abi.ABIToken;
 import org.aion.avm.version2.contracts.GenericContract;
 import org.aion.avm.version2.contracts.HelloWorld;
 import org.aion.avm.version2.contracts.InternalTransaction;
@@ -25,19 +22,19 @@ public byte[] getDeploymentBytes(AvmContract contract) {
 
         switch (contract) {
             case HELLO_WORLD:
-                return new CodeAndArguments(UserlibJarBuilder.buildJarForMainAndClasses(HelloWorld.class, ABIDecoder.class, ABIException.class, ABIToken.class), new byte[0]).encodeToBytes();
+                return new CodeAndArguments(getOptimizedDappBytes(HelloWorld.class), new byte[0]).encodeToBytes();
             case LOG_TARGET:
-                return new CodeAndArguments(UserlibJarBuilder.buildJarForMainAndClasses(LogTarget.class, ABIDecoder.class, ABIException.class, ABIToken.class), new byte[0]).encodeToBytes();
+                return new CodeAndArguments(getOptimizedDappBytes(LogTarget.class), new byte[0]).encodeToBytes();
             case STATEFULNESS:
-                return new CodeAndArguments(UserlibJarBuilder.buildJarForMainAndClasses(Statefulness.class, ABIEncoder.class, ABIDecoder.class, ABIException.class, ABIToken.class), new byte[0]).encodeToBytes();
+                return new CodeAndArguments(getOptimizedDappBytes(Statefulness.class), new byte[0]).encodeToBytes();
             case GENERIC_CONTRACT:
-                return new CodeAndArguments(UserlibJarBuilder.buildJarForMainAndClasses(GenericContract.class, ABIDecoder.class, ABIException.class, ABIToken.class), new byte[0]).encodeToBytes();
+                return new CodeAndArguments(getOptimizedDappBytes(GenericContract.class), new byte[0]).encodeToBytes();
             case INTERNAL_TRANSACTION:
-                return new CodeAndArguments(UserlibJarBuilder.buildJarForMainAndClasses(InternalTransaction.class, ABIEncoder.class, ABIDecoder.class, ABIException.class, ABIToken.class), new byte[0]).encodeToBytes();
+                return new CodeAndArguments(getOptimizedDappBytes(InternalTransaction.class), new byte[0]).encodeToBytes();
             case TRANSACTION_HASH:
-                return new CodeAndArguments(UserlibJarBuilder.buildJarForMainAndClasses(TransactionHash.class), new byte[0]).encodeToBytes();
+                return new CodeAndArguments(getOptimizedDappBytes(TransactionHash.class), new byte[0]).encodeToBytes();
             case META_TRANSACTION_PROXY:
-                return new CodeAndArguments(UserlibJarBuilder.buildJarForMainAndClasses(MetaTransactionProxy.class, ABIEncoder.class, ABIDecoder.class, ABIException.class, ABIToken.class), new byte[0]).encodeToBytes();
+                return new CodeAndArguments(getOptimizedDappBytes(MetaTransactionProxy.class), new byte[0]).encodeToBytes();
             default : throw new IllegalStateException("The following contract is not supported by version 2 of the avm: " + contract);
         }
     }
@@ -50,20 +47,29 @@ public byte[] getJarBytes(AvmContract contract) {
 
         switch (contract) {
             case HELLO_WORLD:
-                return UserlibJarBuilder.buildJarForMainAndClasses(HelloWorld.class, ABIDecoder.class, ABIException.class, ABIToken.class);
+                return getOptimizedDappBytes(HelloWorld.class);
             case LOG_TARGET:
-                return UserlibJarBuilder.buildJarForMainAndClasses(LogTarget.class, ABIDecoder.class, ABIException.class, ABIToken.class);
+                return getOptimizedDappBytes(LogTarget.class);
             case STATEFULNESS:
-                return UserlibJarBuilder.buildJarForMainAndClasses(Statefulness.class, ABIEncoder.class, ABIDecoder.class, ABIException.class, ABIToken.class);
+                return getOptimizedDappBytes(Statefulness.class);
             case GENERIC_CONTRACT:
-                return UserlibJarBuilder.buildJarForMainAndClasses(GenericContract.class, ABIDecoder.class, ABIException.class, ABIToken.class);
+                return getOptimizedDappBytes(GenericContract.class);
             case INTERNAL_TRANSACTION:
-                return UserlibJarBuilder.buildJarForMainAndClasses(InternalTransaction.class, ABIEncoder.class, ABIDecoder.class, ABIException.class, ABIToken.class);
+                return getOptimizedDappBytes(InternalTransaction.class);
             case TRANSACTION_HASH:
-                return UserlibJarBuilder.buildJarForMainAndClasses(TransactionHash.class);
+                return getOptimizedDappBytes(TransactionHash.class);
             case META_TRANSACTION_PROXY:
-                return UserlibJarBuilder.buildJarForMainAndClasses(MetaTransactionProxy.class, ABIEncoder.class, ABIDecoder.class, ABIException.class, ABIToken.class);
+                return getOptimizedDappBytes(MetaTransactionProxy.class);
             default : throw new IllegalStateException("The following contract is not supported by version 2 of the avm: " + contract);
         }
     }
+    
+    public byte[] getOptimizedDappBytes(Class<?> mainClass, Class<?> ...otherClasses) {
+        byte[] jarBytes = UserlibJarBuilder.buildJarForMainAndClassesAndUserlib(mainClass, otherClasses);
+        return new OptimizedJarBuilder(false, jarBytes, 1)
+                .withUnreachableMethodRemover()
+                .withRenamer()
+                .withConstantRemover()
+                .getOptimizedBytes();
+    }
 }