fix: VolatileBox dead lock issue

common/src/main/java/com/stardust/concurrent/VolatileDispose.java

@@ -0,0 +1,52 @@
+package com.stardust.concurrent;
+
+/**
+ * Created by Stardust on 2017/10/28.
+ */
+
+public class VolatileDispose<T> {
+
+    private volatile T mValue;
+
+    public T blockedGet() {
+        synchronized (this) {
+            if (mValue != null) {
+                return mValue;
+            }
+            try {
+                this.wait();
+            } catch (InterruptedException e) {
+                throw new RuntimeException(e);
+            }
+        }
+        return mValue;
+    }
+
+    public T blockedGetOrThrow(Class<? extends RuntimeException> exception) {
+        synchronized (this) {
+            if (mValue != null) {
+                return mValue;
+            }
+            try {
+                this.wait();
+            } catch (InterruptedException e) {
+                try {
+                    throw exception.newInstance();
+                } catch (InstantiationException e1) {
+                    throw new RuntimeException(e1);
+                } catch (IllegalAccessException e1) {
+                    throw new RuntimeException(e1);
+                }
+            }
+        }
+        return mValue;
+    }
+
+    public void setAndNotify(T value) {
+        synchronized (this) {
+            mValue = value;
+            notify();
+        }
+    }
+
+}