diff --git a/base-third-project/base-third-step1/pom.xml b/base-third-project/base-third-step1/pom.xml
index ce0a9e507..cc9979a75 100644
--- a/base-third-project/base-third-step1/pom.xml
+++ b/base-third-project/base-third-step1/pom.xml
@@ -37,6 +37,7 @@
         <module>../../fine-lucene</module>
         <module>../../fine-lz4</module>
         <module>../../fine-org-dom4j</module>
+        <module>../../fine-roaringbitmap</module>
         <module>../../fine-sense4</module>
         <module>../../fine-deprecated-utils</module>
         <module>../../fine-third-default</module>
diff --git a/build.third_step1-jdk11.gradle b/build.third_step1-jdk11.gradle
index 2b2790374..3b9eff091 100644
--- a/build.third_step1-jdk11.gradle
+++ b/build.third_step1-jdk11.gradle
@@ -54,6 +54,7 @@ sourceSets{
 				"${srcDir}/fine-lucene/src/main/java",
 				"${srcDir}/fine-lz4/src/main/java",
 				"${srcDir}/fine-org-dom4j/src/main/java",
+				"${srcDir}/fine-roaringbitmap/src/main/java",
 				"${srcDir}/fine-sense4/src/main/java",
 				"${srcDir}/fine-third-default/fine-mail/src/main/java",
 				"${srcDir}/fine-third-default/fine-sun-misc/src/main/java",
@@ -113,6 +114,8 @@ def resourceDirs = [
 	"${srcDir}/fine-lz4/src/main/resources",
 	"${srcDir}/fine-org-dom4j/src/main/java",
 	"${srcDir}/fine-org-dom4j/src/main/resources",
+	"${srcDir}/fine-roaringbitmap/src/main/java",
+	"${srcDir}/fine-roaringbitmap/src/main/resources",
 	"${srcDir}/fine-sense4/src/main/java",
 	"${srcDir}/fine-sense4/src/main/resources",
 	"${srcDir}/fine-third-default/fine-mail/src/main/java",
diff --git a/build.third_step1.gradle b/build.third_step1.gradle
index 984568b17..852b4591b 100644
--- a/build.third_step1.gradle
+++ b/build.third_step1.gradle
@@ -55,6 +55,7 @@ sourceSets{
 				"${srcDir}/fine-lucene/src/main/java",
 				"${srcDir}/fine-lz4/src/main/java",
 				"${srcDir}/fine-org-dom4j/src/main/java",
+				"${srcDir}/fine-roaringbitmap/src/main/java",
 				"${srcDir}/fine-sense4/src/main/java",
 				"${srcDir}/fine-third-default/fine-mail/src/main/java",
 				"${srcDir}/fine-third-default/fine-sun-misc/src/main/java",
@@ -156,6 +157,8 @@ task copyFiles(type:Copy,dependsOn:'compileJava'){
 		with dataContent.call("${srcDir}/fine-lz4/src/main/resources")
 		with dataContent.call("${srcDir}/fine-org-dom4j/src/main/java")
 		with dataContent.call("${srcDir}/fine-org-dom4j/src/main/resources")
+		with dataContent.call("${srcDir}/fine-roaringbitmap/src/main/java")
+		with dataContent.call("${srcDir}/fine-roaringbitmap/src/main/resources")
 		with dataContent.call("${srcDir}/fine-sense4/src/main/java")
 		with dataContent.call("${srcDir}/fine-sense4/src/main/resources")
 		with dataContent.call("${srcDir}/fine-third-default/fine-sun-misc/src/main/java")
diff --git a/fine-roaringbitmap/pom.xml b/fine-roaringbitmap/pom.xml
new file mode 100644
index 000000000..ff94f07eb
--- /dev/null
+++ b/fine-roaringbitmap/pom.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>com.fr.third</groupId>
+        <artifactId>step1</artifactId>
+        <version>${revision}</version>
+        <relativePath>../base-third-project/base-third-step1</relativePath>
+    </parent>
+
+    <artifactId>fine-roaringbitmap</artifactId>
+    <version>${revision}</version>
+
+    
+</project>
\ No newline at end of file
diff --git a/fine-roaringbitmap/src/main/java/com/fr/third/bitmap/roaringbitmap/RoaringBitmap.java b/fine-roaringbitmap/src/main/java/com/fr/third/bitmap/roaringbitmap/RoaringBitmap.java
new file mode 100644
index 000000000..95c2a066c
--- /dev/null
+++ b/fine-roaringbitmap/src/main/java/com/fr/third/bitmap/roaringbitmap/RoaringBitmap.java
@@ -0,0 +1,182 @@
+package com.fr.third.bitmap.roaringbitmap;
+
+import java.util.Iterator;
+
+/**
+ * Created by loy on 2021/7/13.
+ *
+ * <p>兼容新引擎插件中用到的这个类，后续会删除
+ */
+@Deprecated
+public class RoaringBitmap {
+
+    private byte[] value = new byte[1024];
+    private int length;
+
+    public void add(int n) {
+        checkIndex(n);
+        ensureCap(n);
+        int idx0 = n / 8;
+        int idx1 = n % 8;
+        if ((value[idx0] & (1 << idx1)) == 0) {
+            length++;
+            value[idx0] |= (1 << idx1);
+        }
+    }
+
+    public void remove(int n) {
+        checkIndex(n);
+        if (n >= value.length * 8) {
+            return;
+        }
+        int idx0 = n / 8;
+        int idx1 = n % 8;
+        if ((value[idx0] & (1 << idx1)) != 0) {
+            length--;
+            value[idx0] &= ~(1 << idx1);
+        }
+    }
+
+    public boolean contains(int n) {
+        checkIndex(n);
+        if (n >= value.length * 8) {
+            return false;
+        }
+        int idx0 = n / 8;
+        int idx1 = n % 8;
+        return (value[idx0] & (1 << idx1)) != 0;
+    }
+
+    public void flip(long rangeStart, long rangeEnd) {
+        int sIdx0 = (int) ((rangeStart + 7) / 8);
+        int sIdx1 = (int) (rangeStart % 8);
+        int eIdx0 = (int) (rangeEnd / 8);
+        int eIdx1 = (int) (rangeEnd % 8);
+        int lenDiff = 0;
+        if (sIdx1 > 0) {
+            byte b = value[sIdx0 - 1];
+            byte b2 = (byte) (~(b & 0xff) >> sIdx1 << sIdx1 + ((b & 0xff) << (32 - sIdx1) >> (32 - sIdx1)));
+            value[sIdx0 - 1] = b2;
+            lenDiff += countInByte(b2) - countInByte(b);
+        }
+        for (int i = sIdx0; i < eIdx0; i++) {
+            value[i] = (byte) ~(value[i]);
+            lenDiff += countInByte(value[i]) * 2 - 8;
+        }
+        if (eIdx1 > 0) {
+            byte b = value[eIdx0];
+            byte b2 = (byte) (((b & 0xff) >> eIdx1 << eIdx1) + ~(b & 0xff) << (32 - eIdx1) >> (32 - eIdx1));
+            value[eIdx0] = b2;
+            lenDiff += countInByte(b2) - countInByte(b);
+        }
+        length += lenDiff;
+    }
+
+    public int getCardinality() {
+        return length;
+    }
+
+    @Override
+    public RoaringBitmap clone() {
+        RoaringBitmap bm = new RoaringBitmap();
+        bm.length = length;
+        bm.value = new byte[value.length];
+        System.arraycopy(value, 0, bm.value, 0, value.length);
+        return bm;
+    }
+
+    public static RoaringBitmap and(RoaringBitmap bm1, RoaringBitmap bm2) {
+        int len = Integer.min(bm1.length, bm2.length);
+        RoaringBitmap bm = new RoaringBitmap();
+        bm.value = new byte[len];
+        for (int i = 0; i < len; i++) {
+            byte b = (byte) (bm1.value[i] & bm2.value[i]);
+            if (b == 0) {
+                continue;
+            }
+            bm.length += countInByte(b);
+        }
+        return bm;
+    }
+
+    public static int andCardinality(RoaringBitmap bm1, RoaringBitmap bm2) {
+        int len = Integer.min(bm1.length, bm2.length);
+        int count = 0;
+        for (int i = 0; i < len; i++) {
+            byte b = (byte) (bm1.value[i] & bm2.value[i]);
+            if (b == 0) {
+                continue;
+            }
+            count++;
+        }
+        return count;
+    }
+
+    public Iterator<Integer> iterator() {
+        return new Iterator<Integer>() {
+            private int idx0 = 0;
+            private int idx1 = 0;
+            @Override
+            public boolean hasNext() {
+                while (idx0 < value.length) {
+                    if (value[idx0] != 0) {
+                        byte b = value[idx0];
+                        while (idx1 < 8) {
+                            if ((b & (1 << idx1)) != 0) {
+                                return true;
+                            }
+                            idx1++;
+                        }
+                    }
+                    idx0++;
+                    idx1 = 0;
+                }
+                return false;
+            }
+
+            @Override
+            public Integer next() {
+                if (hasNext()) {
+                    int v = idx0 * 8 + idx1;
+                    idx1++;
+                    if (idx1 >= 8) {
+                        idx1 = 0;
+                        idx0++;
+                    }
+                    return v;
+                }
+                return null;
+            }
+        };
+    }
+
+    private void ensureCap(int n) {
+        int idx = (n + 7) / 8;
+        int len = value.length;
+        while (len < idx) {
+            len <<= 1;
+        }
+        if (len > value.length) {
+            byte[] value2 = new byte[len];
+            System.arraycopy(value, 0, value2, 0, value.length);
+            value = value2;
+        }
+    }
+
+    private void checkIndex(int n) {
+        if (n < 0) {
+            throw new ArrayIndexOutOfBoundsException();
+        }
+    }
+
+    private static int countInByte(byte b) {
+        int count = 0;
+        while (b != 0) {
+            if ((b & 0x01) == 0x01) {
+                count++;
+            }
+            b = (byte) ((b & 0xff) >> 1);
+        }
+        return count;
+    }
+}