diff --git a/gandiva/pom.xml b/gandiva/pom.xml
index 349ccccc8..b016ddd67 100644
--- a/gandiva/pom.xml
+++ b/gandiva/pom.xml
@@ -37,10 +37,6 @@ under the License.
   </properties>
 
   <dependencies>
-    <dependency>
-        <groupId>org.apache.arrow</groupId>
-        <artifactId>arrow-format</artifactId>
-    </dependency>
     <dependency>
       <groupId>org.apache.arrow</groupId>
       <artifactId>arrow-memory-core</artifactId>
diff --git a/gandiva/src/main/java/org/apache/arrow/gandiva/evaluator/FunctionSignature.java b/gandiva/src/main/java/org/apache/arrow/gandiva/evaluator/FunctionSignature.java
index 66a795723..164b6aaac 100644
--- a/gandiva/src/main/java/org/apache/arrow/gandiva/evaluator/FunctionSignature.java
+++ b/gandiva/src/main/java/org/apache/arrow/gandiva/evaluator/FunctionSignature.java
@@ -18,8 +18,6 @@
 
 import com.google.common.base.MoreObjects;
 import com.google.common.base.Objects;
-
-import java.util.ArrayList;
 import java.util.List;
 import org.apache.arrow.vector.types.pojo.ArrowType;
 
diff --git a/gandiva/src/main/java/org/apache/arrow/gandiva/evaluator/JniLoader.java b/gandiva/src/main/java/org/apache/arrow/gandiva/evaluator/JniLoader.java
index 3cb8ef6b9..5c59c219e 100644
--- a/gandiva/src/main/java/org/apache/arrow/gandiva/evaluator/JniLoader.java
+++ b/gandiva/src/main/java/org/apache/arrow/gandiva/evaluator/JniLoader.java
@@ -18,6 +18,8 @@
 
 import static java.util.UUID.randomUUID;
 
+import com.sun.jna.Library;
+import com.sun.jna.NativeLibrary;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
@@ -29,15 +31,12 @@
 import java.util.concurrent.ConcurrentMap;
 import org.apache.arrow.gandiva.exceptions.GandivaException;
 
-import com.sun.jna.Library;
-import com.sun.jna.NativeLibrary;
-
 /** This class handles loading of the jni library, and acts as a bridge for the native functions. */
 class JniLoader {
   private static final String LIBRARY_NAME = "gandiva_jni";
-  
+
   private static final int RTLD_GLOBAL = 0x00100;
-  private static final int RTLD_LAZY = 0x00001; 
+  private static final int RTLD_LAZY = 0x00001;
 
   private static volatile JniLoader INSTANCE;
   private static volatile long defaultConfiguration = 0L;
@@ -78,8 +77,7 @@ private static void loadGandivaLibraryFromJar(final String tmpDir)
     final File libraryFile = moveFileFromJarToTemp(tmpDir, libraryToLoad, LIBRARY_NAME);
     NativeLibrary.getInstance(
         libraryFile.getAbsolutePath(),
-        Collections.singletonMap(Library.OPTION_OPEN_FLAGS, new Integer(RTLD_LAZY | RTLD_GLOBAL))
-    );
+        Collections.singletonMap(Library.OPTION_OPEN_FLAGS, new Integer(RTLD_LAZY | RTLD_GLOBAL)));
     System.load(libraryFile.getAbsolutePath());
   }
 
diff --git a/gandiva/src/main/java/org/apache/arrow/gandiva/expression/FunctionNode.java b/gandiva/src/main/java/org/apache/arrow/gandiva/expression/FunctionNode.java
index d88dcb564..a5c6fb77f 100644
--- a/gandiva/src/main/java/org/apache/arrow/gandiva/expression/FunctionNode.java
+++ b/gandiva/src/main/java/org/apache/arrow/gandiva/expression/FunctionNode.java
@@ -17,8 +17,6 @@
 package org.apache.arrow.gandiva.expression;
 
 import java.util.List;
-
-import org.apache.arrow.flatbuf.Type;
 import org.apache.arrow.gandiva.exceptions.GandivaException;
 import org.apache.arrow.gandiva.ipc.GandivaTypes;
 import org.apache.arrow.vector.types.pojo.ArrowType;