diff --git a/Java/source/src/main/java/com/yitter/idgen/DefaultIdGenerator.java b/Java/source/src/main/java/com/yitter/idgen/DefaultIdGenerator.java
index a97e349..9fa0ffa 100644
--- a/Java/source/src/main/java/com/yitter/idgen/DefaultIdGenerator.java
+++ b/Java/source/src/main/java/com/yitter/idgen/DefaultIdGenerator.java
@@ -1,79 +1,79 @@
-/*
- * 版权属于：yitter(yitter@126.com)
- * 开源地址：https://gitee.com/yitter/idgenerator
- */
-package com.yitter.idgen;
-
-import com.yitter.contract.ISnowWorker;
-import com.yitter.contract.IdGeneratorException;
-import com.yitter.contract.IdGeneratorOptions;
-import com.yitter.contract.IIdGenerator;
-import com.yitter.core.SnowWorkerM1;
-import com.yitter.core.SnowWorkerM2;
-
-
-public class DefaultIdGenerator implements IIdGenerator {
-
-    private final ISnowWorker _SnowWorker;
-
-    public DefaultIdGenerator(IdGeneratorOptions options) throws IdGeneratorException {
-        if (options == null) {
-            throw new IdGeneratorException("options error.");
-        }
-
-        if (options.BaseTime < 315504000000L || options.BaseTime > System.currentTimeMillis()) {
-            throw new IdGeneratorException("BaseTime error.");
-        }
-
-        if (options.WorkerIdBitLength <= 0) {
-            throw new IdGeneratorException("WorkerIdBitLength error.(range:[1, 21])");
-        }
-        if (options.SeqBitLength + options.WorkerIdBitLength > 22) {
-            throw new IdGeneratorException("error：WorkerIdBitLength + SeqBitLength <= 22");
-        }
-
-        double maxWorkerIdNumber = Math.pow(2, options.WorkerIdBitLength) - 1;
-        if (options.WorkerId < 0 || options.WorkerId > maxWorkerIdNumber) {
-            throw new IdGeneratorException("WorkerId error. (range:[0, " + (maxWorkerIdNumber > 0 ? maxWorkerIdNumber : 63) + "]");
-        }
-
-        if (options.SeqBitLength < 2 || options.SeqBitLength > 21) {
-            throw new IdGeneratorException("SeqBitLength error. (range:[2, 21])");
-        }
-
-        double maxSeqNumber = Math.pow(2, options.SeqBitLength) - 1;
-        if (options.MaxSeqNumber < 0 || options.MaxSeqNumber > maxSeqNumber) {
-            throw new IdGeneratorException("MaxSeqNumber error. (range:[1, " + maxSeqNumber + "]");
-        }
-
-        double maxValue = maxSeqNumber;
-        if (options.MinSeqNumber < 1 || options.MinSeqNumber > maxValue) {
-            throw new IdGeneratorException("MinSeqNumber error. (range:[1, " + maxValue + "]");
-        }
-
-        switch (options.Method) {
-            case 1:
-                _SnowWorker = new SnowWorkerM1(options);
-                break;
-            case 2:
-                _SnowWorker = new SnowWorkerM2(options);
-                break;
-            default:
-                _SnowWorker = new SnowWorkerM1(options);
-                break;
-        }
-
-        if (options.Method == 1) {
-            try {
-                Thread.sleep(500);
-            } catch (InterruptedException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    @Override
-    public long newLong() {
-        return _SnowWorker.nextId();
-    }
-}
+/*
+ * 版权属于：yitter(yitter@126.com)
+ * 开源地址：https://gitee.com/yitter/idgenerator
+ */
+package com.yitter.idgen;
+
+import com.yitter.contract.ISnowWorker;
+import com.yitter.contract.IdGeneratorException;
+import com.yitter.contract.IdGeneratorOptions;
+import com.yitter.contract.IIdGenerator;
+import com.yitter.core.SnowWorkerM1;
+import com.yitter.core.SnowWorkerM2;
+
+
+public class DefaultIdGenerator implements IIdGenerator {
+
+    private static ISnowWorker _SnowWorker = null;
+
+    public DefaultIdGenerator(IdGeneratorOptions options) throws IdGeneratorException {
+        if (options == null) {
+            throw new IdGeneratorException("options error.");
+        }
+
+        if (options.BaseTime < 315504000000L || options.BaseTime > System.currentTimeMillis()) {
+            throw new IdGeneratorException("BaseTime error.");
+        }
+
+        if (options.WorkerIdBitLength <= 0) {
+            throw new IdGeneratorException("WorkerIdBitLength error.(range:[1, 21])");
+        }
+        if (options.SeqBitLength + options.WorkerIdBitLength > 22) {
+            throw new IdGeneratorException("error：WorkerIdBitLength + SeqBitLength <= 22");
+        }
+
+        double maxWorkerIdNumber = Math.pow(2, options.WorkerIdBitLength) - 1;
+        if (options.WorkerId < 0 || options.WorkerId > maxWorkerIdNumber) {
+            throw new IdGeneratorException("WorkerId error. (range:[0, " + (maxWorkerIdNumber > 0 ? maxWorkerIdNumber : 63) + "]");
+        }
+
+        if (options.SeqBitLength < 2 || options.SeqBitLength > 21) {
+            throw new IdGeneratorException("SeqBitLength error. (range:[2, 21])");
+        }
+
+        double maxSeqNumber = Math.pow(2, options.SeqBitLength) - 1;
+        if (options.MaxSeqNumber < 0 || options.MaxSeqNumber > maxSeqNumber) {
+            throw new IdGeneratorException("MaxSeqNumber error. (range:[1, " + maxSeqNumber + "]");
+        }
+
+        double maxValue = maxSeqNumber;
+        if (options.MinSeqNumber < 1 || options.MinSeqNumber > maxValue) {
+            throw new IdGeneratorException("MinSeqNumber error. (range:[1, " + maxValue + "]");
+        }
+
+        switch (options.Method) {
+            case 1:
+                _SnowWorker = new SnowWorkerM1(options);
+                break;
+            case 2:
+                _SnowWorker = new SnowWorkerM2(options);
+                break;
+            default:
+                _SnowWorker = new SnowWorkerM1(options);
+                break;
+        }
+
+        if (options.Method == 1) {
+            try {
+                Thread.sleep(500);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    @Override
+    public long newLong() {
+        return _SnowWorker.nextId();
+    }
+}
diff --git a/Java/source/src/main/java/com/yitter/idgen/YitIdHelper.java b/Java/source/src/main/java/com/yitter/idgen/YitIdHelper.java
index 31f58a5..35ada5d 100644
--- a/Java/source/src/main/java/com/yitter/idgen/YitIdHelper.java
+++ b/Java/source/src/main/java/com/yitter/idgen/YitIdHelper.java
@@ -1,45 +1,45 @@
-/*
- * 版权属于：yitter(yitter@126.com)
- * 开源地址：https://gitee.com/yitter/idgenerator
- */
-package com.yitter.idgen;
-
-import com.yitter.contract.IdGeneratorException;
-import com.yitter.contract.IdGeneratorOptions;
-import com.yitter.contract.IIdGenerator;
-
-/**
- * 这是一个调用的例子，默认情况下，单机集成者可以直接使用 nextId()。
- */
-public class YitIdHelper {
-
-    private static IIdGenerator idGenInstance = null;
-
-    public static IIdGenerator getIdGenInstance()
-    {
-        return idGenInstance;
-    }
-
-
-    /**
-     * 设置参数，建议程序初始化时执行一次
-     * @param options
-     */
-    public static void setIdGenerator(IdGeneratorOptions options) throws IdGeneratorException {
-        idGenInstance = new DefaultIdGenerator(options);
-    }
-
-    /**
-     * 生成新的Id
-     * 调用本方法前，请确保调用了 SetIdGenerator 方法做初始化。
-     * @return
-     */
-    public static long nextId() throws IdGeneratorException {
-        if (idGenInstance == null)
-        {
-            idGenInstance = new DefaultIdGenerator(new IdGeneratorOptions((short)1));
-        }
-
-        return idGenInstance.newLong();
-    }
-}
+/*
+ * 版权属于：yitter(yitter@126.com)
+ * 开源地址：https://gitee.com/yitter/idgenerator
+ */
+package com.yitter.idgen;
+
+import com.yitter.contract.IdGeneratorException;
+import com.yitter.contract.IdGeneratorOptions;
+import com.yitter.contract.IIdGenerator;
+
+/**
+ * 这是一个调用的例子，默认情况下，单机集成者可以直接使用 nextId()。
+ */
+public class YitIdHelper {
+
+    private static IIdGenerator idGenInstance = null;
+
+    public static IIdGenerator getIdGenInstance() {
+        return idGenInstance;
+    }
+
+
+    /**
+     * 设置参数，建议程序初始化时执行一次
+     *
+     * @param options
+     */
+    public static void setIdGenerator(IdGeneratorOptions options) throws IdGeneratorException {
+        idGenInstance = new DefaultIdGenerator(options);
+    }
+
+    /**
+     * 生成新的Id
+     * 调用本方法前，请确保调用了 SetIdGenerator 方法做初始化。
+     *
+     * @return
+     */
+    public static long nextId() throws IdGeneratorException {
+        if (idGenInstance == null) {
+            idGenInstance = new DefaultIdGenerator(new IdGeneratorOptions((short) 1));
+        }
+
+        return idGenInstance.newLong();
+    }
+}