diff --git a/test/framework/src/main/java/org/opensearch/common/bytes/AbstractBytesReferenceTestCase.java b/test/framework/src/main/java/org/opensearch/common/bytes/AbstractBytesReferenceTestCase.java
index 05ef78202614e..dd71711f9154c 100644
--- a/test/framework/src/main/java/org/opensearch/common/bytes/AbstractBytesReferenceTestCase.java
+++ b/test/framework/src/main/java/org/opensearch/common/bytes/AbstractBytesReferenceTestCase.java
@@ -35,9 +35,6 @@
 import org.apache.lucene.util.BytesRef;
 import org.apache.lucene.util.BytesRefBuilder;
 import org.apache.lucene.util.BytesRefIterator;
-import org.apache.lucene.util.UnicodeUtil;
-import org.mockito.Mock;
-import org.mockito.Mockito;
 import org.opensearch.common.breaker.CircuitBreaker;
 import org.opensearch.common.io.stream.BytesStreamOutput;
 import org.opensearch.common.io.stream.ReleasableBytesStreamOutput;
@@ -45,7 +42,6 @@
 import org.opensearch.common.util.BigArrays;
 import org.opensearch.common.util.ByteArray;
 import org.opensearch.common.util.PageCacheRecycler;
-import org.opensearch.core.concurrency.OpenSearchRejectedExecutionException;
 import org.opensearch.indices.breaker.NoneCircuitBreakerService;
 import org.opensearch.test.OpenSearchTestCase;
 
@@ -53,11 +49,7 @@
 import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
-import java.nio.CharBuffer;
 import java.nio.IntBuffer;
-import java.nio.charset.Charset;
-import java.nio.charset.CharsetDecoder;
-import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;
@@ -487,10 +479,10 @@ public void testToUtf8() throws IOException {
     }
 
     public void testUTF8toString_ExceedsMaxLength() {
-       AbstractBytesReference abr = new TestAbstractBytesReference();
-       IllegalArgumentException e = assertThrows(IllegalArgumentException.class, abr::utf8ToString);
-       assertTrue(e.getMessage().contains("UTF16 String size is"));
-       assertTrue(e.getMessage().contains("should be less than"));
+        AbstractBytesReference abr = new TestAbstractBytesReference();
+        IllegalArgumentException e = assertThrows(IllegalArgumentException.class, abr::utf8ToString);
+        assertTrue(e.getMessage().contains("UTF16 String size is"));
+        assertTrue(e.getMessage().contains("should be less than"));
     }
 
     static class TestAbstractBytesReference extends AbstractBytesReference {