diff --git a/xrpl4j-core/src/main/java/org/xrpl/xrpl4j/model/jackson/modules/TransactionDeserializer.java b/xrpl4j-core/src/main/java/org/xrpl/xrpl4j/model/jackson/modules/TransactionDeserializer.java
index 1eccf82a6..c4cb3a483 100644
--- a/xrpl4j-core/src/main/java/org/xrpl/xrpl4j/model/jackson/modules/TransactionDeserializer.java
+++ b/xrpl4j-core/src/main/java/org/xrpl/xrpl4j/model/jackson/modules/TransactionDeserializer.java
@@ -27,7 +27,6 @@
 import com.fasterxml.jackson.databind.node.ObjectNode;
 import org.xrpl.xrpl4j.model.transactions.Transaction;
 import org.xrpl.xrpl4j.model.transactions.TransactionType;
-import org.xrpl.xrpl4j.model.transactions.UnknownTransaction;
 
 import java.io.IOException;
 
diff --git a/xrpl4j-core/src/main/java/org/xrpl/xrpl4j/model/transactions/AmmBid.java b/xrpl4j-core/src/main/java/org/xrpl/xrpl4j/model/transactions/AmmBid.java
index 4f3e539fe..b52da0635 100644
--- a/xrpl4j-core/src/main/java/org/xrpl/xrpl4j/model/transactions/AmmBid.java
+++ b/xrpl4j-core/src/main/java/org/xrpl/xrpl4j/model/transactions/AmmBid.java
@@ -1,7 +1,5 @@
 package org.xrpl.xrpl4j.model.transactions;
 
-import com.fasterxml.jackson.annotation.JsonAnyGetter;
-import com.fasterxml.jackson.annotation.JsonAnySetter;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
 import com.fasterxml.jackson.databind.annotation.JsonSerialize;
@@ -12,7 +10,6 @@
 import org.xrpl.xrpl4j.model.ledger.Issue;
 
 import java.util.List;
-import java.util.Map;
 import java.util.Optional;
 
 /**
diff --git a/xrpl4j-core/src/main/java/org/xrpl/xrpl4j/model/transactions/Transaction.java b/xrpl4j-core/src/main/java/org/xrpl/xrpl4j/model/transactions/Transaction.java
index fb96cd14a..b8fd678ae 100644
--- a/xrpl4j-core/src/main/java/org/xrpl/xrpl4j/model/transactions/Transaction.java
+++ b/xrpl4j-core/src/main/java/org/xrpl/xrpl4j/model/transactions/Transaction.java
@@ -21,7 +21,6 @@
  */
 
 import com.fasterxml.jackson.annotation.JsonAnyGetter;
-import com.fasterxml.jackson.annotation.JsonAnySetter;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonInclude.Include;
 import com.fasterxml.jackson.annotation.JsonProperty;
diff --git a/xrpl4j-core/src/main/java/org/xrpl/xrpl4j/model/transactions/TransactionType.java b/xrpl4j-core/src/main/java/org/xrpl/xrpl4j/model/transactions/TransactionType.java
index 92cd912f1..0beefb089 100644
--- a/xrpl4j-core/src/main/java/org/xrpl/xrpl4j/model/transactions/TransactionType.java
+++ b/xrpl4j-core/src/main/java/org/xrpl/xrpl4j/model/transactions/TransactionType.java
@@ -338,6 +338,9 @@ public enum TransactionType {
   @Beta
   ORACLE_DELETE("OracleDelete"),
 
+  /**
+   * The {@link TransactionType} for any transaction that is unrecognized/unsupported by xrpl4j.
+   */
   UNKNOWN("Unknown");
 
   private final String value;
diff --git a/xrpl4j-core/src/test/java/org/xrpl/xrpl4j/model/transactions/TransactionTypeTests.java b/xrpl4j-core/src/test/java/org/xrpl/xrpl4j/model/transactions/TransactionTypeTests.java
index af5e049c2..ed5fd8377 100644
--- a/xrpl4j-core/src/test/java/org/xrpl/xrpl4j/model/transactions/TransactionTypeTests.java
+++ b/xrpl4j-core/src/test/java/org/xrpl/xrpl4j/model/transactions/TransactionTypeTests.java
@@ -22,15 +22,10 @@
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
-import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import org.junit.jupiter.api.Test;
-import org.junit.jupiter.api.extension.ExtensionContext;
 import org.junit.jupiter.params.ParameterizedTest;
-import org.junit.jupiter.params.provider.Arguments;
-import org.junit.jupiter.params.provider.ArgumentsProvider;
-import org.junit.jupiter.params.provider.ArgumentsSource;
 import org.junit.jupiter.params.provider.EmptySource;
 import org.junit.jupiter.params.provider.EnumSource;
 import org.junit.jupiter.params.provider.NullSource;
diff --git a/xrpl4j-core/src/test/java/org/xrpl/xrpl4j/model/transactions/json/UnlModifyJsonTests.java b/xrpl4j-core/src/test/java/org/xrpl/xrpl4j/model/transactions/json/UnlModifyJsonTests.java
index 367abc7b8..7c295ade6 100644
--- a/xrpl4j-core/src/test/java/org/xrpl/xrpl4j/model/transactions/json/UnlModifyJsonTests.java
+++ b/xrpl4j-core/src/test/java/org/xrpl/xrpl4j/model/transactions/json/UnlModifyJsonTests.java
@@ -20,15 +20,12 @@
  * =========================LICENSE_END==================================
  */
 
-import static org.assertj.core.api.Assertions.assertThat;
-
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.google.common.primitives.UnsignedInteger;
 import org.json.JSONException;
 import org.junit.jupiter.api.Test;
 import org.xrpl.xrpl4j.model.AbstractJsonTest;
 import org.xrpl.xrpl4j.model.client.common.LedgerIndex;
-import org.xrpl.xrpl4j.model.transactions.Transaction;
 import org.xrpl.xrpl4j.model.transactions.UnlModify;
 import org.xrpl.xrpl4j.model.transactions.XrpCurrencyAmount;