diff --git a/README.md b/README.md
index 895486a..0d16ffc 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,6 @@
-[](https://travis-ci.org/bitcoinj/bitcoinj) [](https://coveralls.io/r/bitcoinj/bitcoinj?branch=master)
+[](https://jitpack.io/#Samourai-Wallet/bitcoinj)
+
+[](https://travis-ci.org/bitcoinj/bitcoinj) [](https://coveralls.io/r/bitcoinj/bitcoinj?branch=master)
[](https://kiwiirc.com/client/irc.freenode.net/bitcoinj)
diff --git a/core/pom.xml b/core/pom.xml
index 81cc487..72fea3e 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -191,7 +191,7 @@
com.google.protobuf:protobuf-java:2.6.1:jar:null:compile:d9521f2aecb909835746b7a5facf612af5e890e8
com.h2database:h2:1.3.167:jar:null:compile:d3867d586f087e53eb12fc65e5693d8ee9a5da17
com.lambdaworks:scrypt:1.4.0:jar:null:compile:906506b74f30c8c20bccd9ed4a11112d8941fe87
- org.bouncycastle:bcprov-jdk15on:1.55:jar:null:compile:6fc928491ada0974140257e85e2b016a2eee0e1d
+ org.bouncycastle:bcprov-jdk15on:1.55:jar:null:compile:935f2e57a00ec2c489cbd2ad830d4a399708f979
junit:junit:4.12:jar:null:test:2973d150c0dc1fefe998f834810d68f278ea58ec
mysql:mysql-connector-java:5.1.33:jar:null:compile:8af455a9a3267e6664cafc87ace71a4e4ef02837
net.jcip:jcip-annotations:1.0:jar:null:compile:afba4942caaeaf46aab0b976afd57cc7c181467e
@@ -432,5 +432,4 @@
2.7.5
-
diff --git a/core/src/main/java/org/bitcoinj/store/SPVBlockStore.java b/core/src/main/java/org/bitcoinj/store/SPVBlockStore.java
index aaaa5d6..90f4250 100644
--- a/core/src/main/java/org/bitcoinj/store/SPVBlockStore.java
+++ b/core/src/main/java/org/bitcoinj/store/SPVBlockStore.java
@@ -278,10 +278,6 @@ public void setChainHead(StoredBlock chainHead) throws BlockStoreException {
public void close() throws BlockStoreException {
try {
buffer.force();
- if (System.getProperty("os.name").toLowerCase().contains("win")) {
- log.info("Windows mmap hack: Forcing buffer cleaning");
- WindowsMMapHack.forceRelease(buffer);
- }
buffer = null; // Allow it to be GCd and the underlying file mapping to go away.
randomAccessFile.close();
} catch (IOException e) {
diff --git a/core/src/main/java/org/bitcoinj/store/WindowsMMapHack.java b/core/src/main/java/org/bitcoinj/store/WindowsMMapHack.java
deleted file mode 100644
index 88f47f2..0000000
--- a/core/src/main/java/org/bitcoinj/store/WindowsMMapHack.java
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * Copyright by the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.bitcoinj.store;
-
-import sun.misc.*;
-import sun.nio.ch.*;
-
-import java.nio.*;
-
-/**
- * This class knows how to force an mmap'd ByteBuffer to reliquish its file handles before it becomes garbage collected,
- * by exploiting implementation details of the HotSpot JVM implementation.
- *
- * This is required on Windows because otherwise an attempt to delete a file that is still mmapped will fail. This can
- * happen when a user requests a "restore from seed" function, which involves deleting and recreating the chain file.
- * At some point we should stop using mmap in SPVBlockStore and we can then delete this class.
- *
- * It is a separate class to avoid hitting unknown imports when running on other JVMs.
- */
-public class WindowsMMapHack {
- public static void forceRelease(MappedByteBuffer buffer) {
- Cleaner cleaner = ((DirectBuffer) buffer).cleaner();
- if (cleaner != null) cleaner.clean();
- }
-}