[Change] Locker 增加清理日志;

[Add] LockerMapTest 增加单元测试;

src/test/java/net/lamgc/cgj/util/LockerMapTest.java

@@ -0,0 +1,18 @@
+package net.lamgc.cgj.util;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class LockerMapTest {
+
+    @Test
+    public void createAndFinalizeTest() {
+        LockerMap<String> map = new LockerMap<>();
+        Locker<String> locker = map.createLocker("Test", true);
+        Assert.assertEquals(locker, map.createLocker("Test", true));
+        locker.lock();
+        locker.unlock();
+        System.gc();
+    }
+
+}