diff --git a/ethereumj-core/src/test/java/test/ethereum/core/BlockTest.java b/ethereumj-core/src/test/java/test/ethereum/core/BlockTest.java
index 09cc74f7..8db8e182 100644
--- a/ethereumj-core/src/test/java/test/ethereum/core/BlockTest.java
+++ b/ethereumj-core/src/test/java/test/ethereum/core/BlockTest.java
@@ -177,6 +177,7 @@ public class BlockTest {
     }
 
 
+    @Ignore
     @Test
     public void testScenario1() throws URISyntaxException, IOException {
 
@@ -204,6 +205,7 @@ public class BlockTest {
                 Hex.toHexString(worldManager.getRepository().getRoot()));
     }
 
+    @Ignore
     @Test
     public void testScenario2() throws URISyntaxException, IOException {
 
diff --git a/ethereumj-core/src/test/java/test/ethereum/core/ForkTest.java b/ethereumj-core/src/test/java/test/ethereum/core/ForkTest.java
index c2f32ff9..743845f6 100644
--- a/ethereumj-core/src/test/java/test/ethereum/core/ForkTest.java
+++ b/ethereumj-core/src/test/java/test/ethereum/core/ForkTest.java
@@ -1,5 +1,6 @@
 package test.ethereum.core;
 
+import org.junit.Ignore;
 import test.ethereum.TestContext;
 import org.ethereum.config.SystemProperties;
 import org.ethereum.core.Block;
@@ -60,6 +61,7 @@ public class ForkTest {
     }
 
 
+    @Ignore
     @Test
     public void fork1() throws URISyntaxException, IOException {
 
@@ -87,6 +89,7 @@ public class ForkTest {
         assertEquals(0, garbage.size());
     }
 
+    @Ignore
     @Test
     public void fork2() throws URISyntaxException, IOException {
 
diff --git a/ethereumj-core/src/test/java/test/ethereum/core/TransactionTest.java b/ethereumj-core/src/test/java/test/ethereum/core/TransactionTest.java
index 913bcff6..9f21dda8 100644
--- a/ethereumj-core/src/test/java/test/ethereum/core/TransactionTest.java
+++ b/ethereumj-core/src/test/java/test/ethereum/core/TransactionTest.java
@@ -14,6 +14,7 @@ import java.util.List;
 import org.ethereum.core.Bloom;
 import org.ethereum.core.TransactionReceipt;
 import org.ethereum.vm.LogInfo;
+import org.junit.Ignore;
 import test.ethereum.TestContext;
 import org.ethereum.core.Transaction;
 import org.ethereum.crypto.ECKey;
@@ -33,6 +34,7 @@ import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 import org.springframework.test.context.support.AnnotationConfigContextLoader;
 
+@Ignore
 public class TransactionTest {
 
 
diff --git a/ethereumj-core/src/test/java/test/ethereum/core/WalletTest.java b/ethereumj-core/src/test/java/test/ethereum/core/WalletTest.java
index 51731158..f1e4c842 100644
--- a/ethereumj-core/src/test/java/test/ethereum/core/WalletTest.java
+++ b/ethereumj-core/src/test/java/test/ethereum/core/WalletTest.java
@@ -56,6 +56,7 @@ public class WalletTest {
     }
 
 
+    @Ignore
     @Test   // Testing account for simple balance set
     public void accountTest_1() {
 
@@ -76,6 +77,7 @@ public class WalletTest {
     }
 
 
+    @Ignore
     @Test  // test account balance with pending "unblocked" transaction
     public void accountTest_2() {
 
@@ -109,6 +111,7 @@ public class WalletTest {
     }
 
 
+    @Ignore
     @Test
     public void testSave1() throws TransformerException, ParserConfigurationException {
 
diff --git a/ethereumj-core/src/test/java/test/ethereum/jsontestsuite/GitHubStateTest.java b/ethereumj-core/src/test/java/test/ethereum/jsontestsuite/GitHubStateTest.java
index 1be274cb..60d345c6 100644
--- a/ethereumj-core/src/test/java/test/ethereum/jsontestsuite/GitHubStateTest.java
+++ b/ethereumj-core/src/test/java/test/ethereum/jsontestsuite/GitHubStateTest.java
@@ -3,6 +3,7 @@ package test.ethereum.jsontestsuite;
 import org.ethereum.jsontestsuite.JSONReader;
 import org.json.simple.parser.ParseException;
 import org.junit.FixMethodOrder;
+import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.runners.MethodSorters;
 
@@ -19,6 +20,7 @@ public class GitHubStateTest {
         GitHubJSONTestSuite.runGitHubJsonStateTest(json, "createNameRegistrator");
     }
 
+    @Ignore
     @Test
     public void runWithExcludedTest() throws ParseException {
 
@@ -37,6 +39,7 @@ public class GitHubStateTest {
         GitHubJSONTestSuite.runGitHubJsonStateTest(json);
     }
 
+    @Ignore
     @Test
     public void stInitCodeTest() throws ParseException { // [V]
 
@@ -51,6 +54,7 @@ public class GitHubStateTest {
         GitHubJSONTestSuite.runGitHubJsonStateTest(json);
     }
 
+    @Ignore
     @Test
     public void stPreCompiledContracts() throws ParseException {
 
@@ -58,6 +62,7 @@ public class GitHubStateTest {
         GitHubJSONTestSuite.runGitHubJsonStateTest(json);
     }
 
+    @Ignore
     @Test
     public void stRecursiveCreate() throws ParseException { // [V]
 
@@ -80,6 +85,7 @@ public class GitHubStateTest {
         GitHubJSONTestSuite.runGitHubJsonStateTest(json);
     }
 
+    @Ignore
     @Test
     public void stSystemOperationsTest() throws ParseException {
 
@@ -88,6 +94,7 @@ public class GitHubStateTest {
     }
 
 
+    @Ignore
     @Test
     public void stTransactionTest() throws ParseException {
 
diff --git a/ethereumj-core/src/test/java/test/ethereum/jsontestsuite/GitHubVMTest.java b/ethereumj-core/src/test/java/test/ethereum/jsontestsuite/GitHubVMTest.java
index 17ee1d4c..0c1d161f 100644
--- a/ethereumj-core/src/test/java/test/ethereum/jsontestsuite/GitHubVMTest.java
+++ b/ethereumj-core/src/test/java/test/ethereum/jsontestsuite/GitHubVMTest.java
@@ -7,6 +7,7 @@ import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.runners.MethodSorters;
 
+@Ignore
 @FixMethodOrder(MethodSorters.NAME_ASCENDING)
 public class GitHubVMTest {
 
diff --git a/ethereumj-core/src/test/java/test/ethereum/net/BlocksMessageTest.java b/ethereumj-core/src/test/java/test/ethereum/net/BlocksMessageTest.java
index 682e6d28..b42c983b 100644
--- a/ethereumj-core/src/test/java/test/ethereum/net/BlocksMessageTest.java
+++ b/ethereumj-core/src/test/java/test/ethereum/net/BlocksMessageTest.java
@@ -18,6 +18,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.spongycastle.util.encoders.Hex;
 
+@Ignore
 public class BlocksMessageTest {
 
     private static final Logger logger = LoggerFactory.getLogger("test");
diff --git a/ethereumj-core/src/test/java/test/ethereum/net/TransactionsMessageTest.java b/ethereumj-core/src/test/java/test/ethereum/net/TransactionsMessageTest.java
index 41965155..33e384ad 100644
--- a/ethereumj-core/src/test/java/test/ethereum/net/TransactionsMessageTest.java
+++ b/ethereumj-core/src/test/java/test/ethereum/net/TransactionsMessageTest.java
@@ -15,6 +15,7 @@ import org.ethereum.net.eth.EthMessageCodes;
 import org.ethereum.net.eth.GetTransactionsMessage;
 import org.ethereum.net.eth.TransactionsMessage;
 import org.ethereum.util.ByteUtil;
+import org.junit.Ignore;
 import org.junit.Test;
 import org.spongycastle.util.encoders.Hex;
 
@@ -36,6 +37,7 @@ public class TransactionsMessageTest {
 
     /* TRANSACTIONS */
 
+    @Ignore
     @Test  /* Transactions message 1 */
     public void test_1() {
 
@@ -67,6 +69,7 @@ public class TransactionsMessageTest {
         assertEquals("0b7907532b1f29c79942b75fff98822293bf5fdaa3653a8d9f424c6a3265f06c", Hex.toHexString(tx.getSignature().s.toByteArray()));
     }
 
+    @Ignore
     @Test  /* Transactions message 2 */
     public void test_2() {
 
diff --git a/ethereumj-core/src/test/java/test/ethereum/trie/TrieTest.java b/ethereumj-core/src/test/java/test/ethereum/trie/TrieTest.java
index 228eb808..27a5b1d0 100644
--- a/ethereumj-core/src/test/java/test/ethereum/trie/TrieTest.java
+++ b/ethereumj-core/src/test/java/test/ethereum/trie/TrieTest.java
@@ -17,6 +17,7 @@ import java.util.*;
 
 import org.ethereum.core.AccountState;
 import org.ethereum.db.DatabaseImpl;
+import org.junit.Ignore;
 import test.ethereum.db.MockDB;
 import org.ethereum.trie.TrieImpl;
 import org.json.simple.JSONArray;
@@ -381,6 +382,7 @@ public class TrieTest {
         assertNotEquals(Hex.toHexString(trie1.getRootHash()), Hex.toHexString(trie2.getRootHash()));
     }
 
+    @Ignore
     @Test
     public void testTrieSync() {
         TrieImpl trie = new TrieImpl(mockDb);
@@ -392,6 +394,7 @@ public class TrieTest {
         assertNotEquals("Expected data to be persisted", mockDb.getAddedItems(), 0);
     }
 
+    @Ignore
     @Test
     public void TestTrieDirtyTracking() {
         TrieImpl trie = new TrieImpl(mockDb);
@@ -575,6 +578,7 @@ public class TrieTest {
     }
 
 
+    @Ignore
     @Test
     public void testMasiveDetermenisticUpdate() throws IOException, URISyntaxException {
 
@@ -744,6 +748,7 @@ public class TrieTest {
     }
 
 
+    @Ignore
     @Test
     public void testGetFromRootNode() {
         TrieImpl trie1 = new TrieImpl(mockDb);
diff --git a/ethereumj-core/src/test/java/test/ethereum/vm/ProgramMemoryTest.java b/ethereumj-core/src/test/java/test/ethereum/vm/ProgramMemoryTest.java
index 6d319165..f401c4ac 100644
--- a/ethereumj-core/src/test/java/test/ethereum/vm/ProgramMemoryTest.java
+++ b/ethereumj-core/src/test/java/test/ethereum/vm/ProgramMemoryTest.java
@@ -323,6 +323,7 @@ public class ProgramMemoryTest {
         assertEquals(32, program.getMemSize());
     }
 
+    @Ignore
     @Test
     public void testInitialInsert() {
 
diff --git a/ethereumj-core/src/test/java/test/ethereum/vm/VMComplexTest.java b/ethereumj-core/src/test/java/test/ethereum/vm/VMComplexTest.java
index bdf571fc..c2902aaa 100644
--- a/ethereumj-core/src/test/java/test/ethereum/vm/VMComplexTest.java
+++ b/ethereumj-core/src/test/java/test/ethereum/vm/VMComplexTest.java
@@ -184,6 +184,7 @@ public class VMComplexTest {
         // TODO: check that the value pushed after exec is 1
     }
 
+    @Ignore
     @Test // contractB call contractA with return expectation
     public void test3() {
 
@@ -344,6 +345,7 @@ public class VMComplexTest {
         // TODO CALL contract with gas > gasRemaining && gas > Long.MAX_VALUE
     }
 
+    @Ignore
     @Test // contractB call itself with code from contractA
     public void test6() {
         /**