diff --git a/LICENSE b/LICENSE
index 26968535b..130dac6aa 100644
--- a/LICENSE
+++ b/LICENSE
@@ -254,16 +254,6 @@ License: http://www.apache.org/licenses/LICENSE-2.0
 
 --------------------------------------------------------------------------------
 
-The following files include code modified from Eclipse Collections project.
-
-./tsfile/src/main/java/org/apache/tsfile/utils/ByteArrayList.java
-
-Copyright: 2021 Goldman Sachs
-Project page: https://www.eclipse.org/collections
-License: https://github.com/eclipse/eclipse-collections/blob/master/LICENSE-EDL-1.0.txt
-
---------------------------------------------------------------------------------
-
 The following files include code modified from Snappy project.
 
 ./tsfile/cpp/third_party/google_snappy/snappy.h
@@ -301,4 +291,4 @@ The following files include code is copied from lzokay project.
 
 Copyright: (c) 2018 Jack Andersen
 Project page: https://github.com/AxioDL/lzokay
-License: https://github.com/AxioDL/lzokay/blob/master/LICENSE
\ No newline at end of file
+License: https://github.com/AxioDL/lzokay/blob/master/LICENSE
diff --git a/java/tsfile/src/main/java/org/apache/tsfile/utils/ByteArrayList.java b/java/tsfile/src/main/java/org/apache/tsfile/utils/ByteArrayList.java
deleted file mode 100644
index 35e39ce24..000000000
--- a/java/tsfile/src/main/java/org/apache/tsfile/utils/ByteArrayList.java
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you 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.
- */
-
-/**
- * This class includes code modified from Eclipse Collections project.
- *
- * <p>Copyright: 2021 Goldman Sachs
- *
- * <p>Project page: https://www.eclipse.org/collections/
- *
- * <p>License: https://github.com/eclipse/eclipse-collections/blob/master/LICENSE-EDL-1.0.txt
- */
-package org.apache.tsfile.utils;
-
-import java.util.Arrays;
-
-public class ByteArrayList {
-
-  private static final byte[] DEFAULT_SIZED_EMPTY_ARRAY = {};
-  private static final byte[] ZERO_SIZED_ARRAY = {};
-  private static final int MAXIMUM_ARRAY_SIZE = Integer.MAX_VALUE - 8;
-
-  protected int size;
-  protected transient byte[] items = DEFAULT_SIZED_EMPTY_ARRAY;
-
-  public ByteArrayList() {}
-
-  public ByteArrayList(int initialCapacity) {
-    this.items = initialCapacity == 0 ? ZERO_SIZED_ARRAY : new byte[initialCapacity];
-  }
-
-  private void ensureCapacityForAdd() {
-    if (this.items == DEFAULT_SIZED_EMPTY_ARRAY) {
-      this.items = new byte[10];
-    } else {
-      this.transferItemsToNewArrayWithCapacity(this.sizePlusFiftyPercent(this.size));
-    }
-  }
-
-  private int sizePlusFiftyPercent(int oldSize) {
-    int result = oldSize + (oldSize >> 1) + 1;
-    return result < oldSize ? MAXIMUM_ARRAY_SIZE : result;
-  }
-
-  private void transferItemsToNewArrayWithCapacity(int newCapacity) {
-    this.items = this.copyItemsWithNewCapacity(newCapacity);
-  }
-
-  private byte[] copyItemsWithNewCapacity(int newCapacity) {
-    byte[] newItems = new byte[newCapacity];
-    System.arraycopy(this.items, 0, newItems, 0, Math.min(this.size, newCapacity));
-    return newItems;
-  }
-
-  public boolean add(byte newItem) {
-    if (this.items.length == this.size) {
-      this.ensureCapacityForAdd();
-    }
-    this.items[this.size] = newItem;
-    this.size++;
-    return true;
-  }
-
-  public boolean addAll(byte... source) {
-    if (source.length < 1) {
-      return false;
-    }
-    this.copyItems(source.length, source);
-    return true;
-  }
-
-  private void copyItems(int sourceSize, byte[] source) {
-    int newSize = this.size + sourceSize;
-    this.ensureCapacity(newSize);
-    System.arraycopy(source, 0, this.items, this.size, sourceSize);
-    this.size = newSize;
-  }
-
-  public void ensureCapacity(int minCapacity) {
-    int oldCapacity = this.items.length;
-    if (minCapacity > oldCapacity) {
-      int newCapacity = Math.max(this.sizePlusFiftyPercent(oldCapacity), minCapacity);
-      this.transferItemsToNewArrayWithCapacity(newCapacity);
-    }
-  }
-
-  public byte[] toArray() {
-    byte[] newItems = new byte[this.size];
-    System.arraycopy(this.items, 0, newItems, 0, this.size);
-    return newItems;
-  }
-
-  public byte removeAtIndex(int index) {
-    byte previous = this.get(index);
-    int totalOffset = this.size - index - 1;
-    if (totalOffset > 0) {
-      System.arraycopy(this.items, index + 1, this.items, index, totalOffset);
-    }
-    --this.size;
-    this.items[this.size] = (byte) 0;
-    return previous;
-  }
-
-  public byte get(int index) {
-    if (index < this.size) {
-      return this.items[index];
-    }
-    throw new IndexOutOfBoundsException("Index: " + index + " Size: " + this.size);
-  }
-
-  public void clear() {
-    Arrays.fill(this.items, 0, size, (byte) 0);
-    this.size = 0;
-  }
-
-  public int size() {
-    return this.size;
-  }
-}