diff --git a/fineract-provider/build.gradle b/fineract-provider/build.gradle
index 5bbf625d6..10da8eeaf 100644
--- a/fineract-provider/build.gradle
+++ b/fineract-provider/build.gradle
@@ -390,7 +390,6 @@ tasks.withType(JavaCompile) {
                 "JdkObsolete",
                 "EmptyBlockTag",
                 "MissingSummary",
-                "MutablePublicArray",
                 "InvalidParam",
                 "ReturnFromVoid",
                 "AlmostJavadoc",
@@ -456,6 +455,7 @@ tasks.withType(JavaCompile) {
                 "ModifyCollectionInEnhancedForLoop",
                 "NonCanonicalType",
                 "InvalidInlineTag",
+                "MutablePublicArray",
                 "OperatorPrecedence",
                 "EqualsGetClass",
                 "EqualsUnsafeCast",
diff --git a/fineract-provider/src/main/java/org/apache/fineract/interoperation/data/ExtensionData.java b/fineract-provider/src/main/java/org/apache/fineract/interoperation/data/ExtensionData.java
index 18ed4c0a7..9a9f6d799 100644
--- a/fineract-provider/src/main/java/org/apache/fineract/interoperation/data/ExtensionData.java
+++ b/fineract-provider/src/main/java/org/apache/fineract/interoperation/data/ExtensionData.java
@@ -23,13 +23,14 @@ import static org.apache.fineract.interoperation.util.InteropUtil.PARAM_VALUE;
 
 import com.google.gson.JsonObject;
 import java.util.Arrays;
+import java.util.List;
 import javax.validation.constraints.NotNull;
 import org.apache.fineract.infrastructure.core.data.DataValidatorBuilder;
 import org.apache.fineract.infrastructure.core.serialization.FromJsonHelper;
 
 public class ExtensionData {
 
-    public static final String[] PARAMS = { PARAM_KEY, PARAM_VALUE };
+    public static final List<String> PARAMS = List.copyOf(Arrays.asList(PARAM_KEY, PARAM_VALUE));
 
     @NotNull
     private final String key;
@@ -58,7 +59,7 @@ public class ExtensionData {
             return null;
         }
 
-        jsonHelper.checkForUnsupportedParameters(element, Arrays.asList(PARAMS));
+        jsonHelper.checkForUnsupportedParameters(element, PARAMS);
 
         String key = jsonHelper.extractStringNamed(PARAM_KEY, element);
         DataValidatorBuilder dataValidatorCopy = dataValidator.reset().parameter(PARAM_KEY).value(key).notBlank();
diff --git a/fineract-provider/src/main/java/org/apache/fineract/interoperation/data/GeoCodeData.java b/fineract-provider/src/main/java/org/apache/fineract/interoperation/data/GeoCodeData.java
index addf8e8dc..782c6881f 100644
--- a/fineract-provider/src/main/java/org/apache/fineract/interoperation/data/GeoCodeData.java
+++ b/fineract-provider/src/main/java/org/apache/fineract/interoperation/data/GeoCodeData.java
@@ -23,13 +23,14 @@ import static org.apache.fineract.interoperation.util.InteropUtil.PARAM_LONGITUD
 
 import com.google.gson.JsonObject;
 import java.util.Arrays;
+import java.util.List;
 import javax.validation.constraints.NotNull;
 import org.apache.fineract.infrastructure.core.data.DataValidatorBuilder;
 import org.apache.fineract.infrastructure.core.serialization.FromJsonHelper;
 
 public class GeoCodeData {
 
-    public static final String[] PARAMS = { PARAM_LATITUDE, PARAM_LONGITUDE };
+    public static final List<String> PARAMS = List.copyOf(Arrays.asList(PARAM_LATITUDE, PARAM_LONGITUDE));
 
     @NotNull
     private final String latitude;
@@ -54,7 +55,7 @@ public class GeoCodeData {
             return null;
         }
 
-        jsonHelper.checkForUnsupportedParameters(element, Arrays.asList(PARAMS));
+        jsonHelper.checkForUnsupportedParameters(element, PARAMS);
 
         String latitude = jsonHelper.extractStringNamed(PARAM_LATITUDE, element);
         DataValidatorBuilder dataValidatorCopy = dataValidator.reset().parameter(PARAM_LATITUDE).value(latitude).notBlank();
diff --git a/fineract-provider/src/main/java/org/apache/fineract/interoperation/data/InteropTransactionTypeData.java b/fineract-provider/src/main/java/org/apache/fineract/interoperation/data/InteropTransactionTypeData.java
index 09139ab5f..4a3301304 100644
--- a/fineract-provider/src/main/java/org/apache/fineract/interoperation/data/InteropTransactionTypeData.java
+++ b/fineract-provider/src/main/java/org/apache/fineract/interoperation/data/InteropTransactionTypeData.java
@@ -27,6 +27,7 @@ import static org.apache.fineract.interoperation.util.InteropUtil.PARAM_SUB_SCEN
 
 import com.google.gson.JsonObject;
 import java.util.Arrays;
+import java.util.List;
 import javax.validation.Valid;
 import javax.validation.constraints.NotNull;
 import org.apache.fineract.infrastructure.core.data.DataValidatorBuilder;
@@ -37,8 +38,8 @@ import org.apache.fineract.interoperation.domain.InteropTransactionScenario;
 
 public class InteropTransactionTypeData {
 
-    public static final String[] PARAMS = { PARAM_SCENARIO, PARAM_SUB_SCENARIO, PARAM_INITIATOR, PARAM_INITIATOR_TYPE, PARAM_REFUND_INFO,
-            PARAM_BALANCE_OF_PAYMENTS };
+    public static final List<String> PARAMS = List.copyOf(Arrays.asList(PARAM_SCENARIO, PARAM_SUB_SCENARIO, PARAM_INITIATOR,
+            PARAM_INITIATOR_TYPE, PARAM_REFUND_INFO, PARAM_BALANCE_OF_PAYMENTS));
 
     @NotNull
     private final InteropTransactionScenario scenario;
@@ -92,7 +93,7 @@ public class InteropTransactionTypeData {
             return null;
         }
 
-        jsonHelper.checkForUnsupportedParameters(element, Arrays.asList(PARAMS));
+        jsonHelper.checkForUnsupportedParameters(element, PARAMS);
 
         String scenarioString = jsonHelper.extractStringNamed(PARAM_SCENARIO, element);
         DataValidatorBuilder dataValidatorCopy = dataValidator.reset().parameter(PARAM_SCENARIO).value(scenarioString).notBlank();
diff --git a/fineract-provider/src/main/java/org/apache/fineract/interoperation/data/MoneyData.java b/fineract-provider/src/main/java/org/apache/fineract/interoperation/data/MoneyData.java
index 068dfeed6..a1bb88763 100644
--- a/fineract-provider/src/main/java/org/apache/fineract/interoperation/data/MoneyData.java
+++ b/fineract-provider/src/main/java/org/apache/fineract/interoperation/data/MoneyData.java
@@ -26,6 +26,7 @@ import static org.apache.fineract.interoperation.util.InteropUtil.PARAM_LOCALE;
 import com.google.gson.JsonObject;
 import java.math.BigDecimal;
 import java.util.Arrays;
+import java.util.List;
 import javax.validation.constraints.NotNull;
 import org.apache.fineract.infrastructure.core.data.DataValidatorBuilder;
 import org.apache.fineract.infrastructure.core.serialization.FromJsonHelper;
@@ -34,7 +35,7 @@ import org.apache.fineract.organisation.monetary.domain.MonetaryCurrency;
 
 public class MoneyData {
 
-    public static final String[] PARAMS = { PARAM_AMOUNT, PARAM_CURRENCY, PARAM_LOCALE };
+    public static final List<String> PARAMS = List.copyOf(Arrays.asList(PARAM_AMOUNT, PARAM_CURRENCY, PARAM_LOCALE));
 
     @NotNull
     private final BigDecimal amount;
@@ -70,7 +71,7 @@ public class MoneyData {
             return null;
         }
 
-        jsonHelper.checkForUnsupportedParameters(element, Arrays.asList(PARAMS));
+        jsonHelper.checkForUnsupportedParameters(element, PARAMS);
 
         String locale = jsonHelper.extractStringNamed(PARAM_LOCALE, element);
         BigDecimal amount = locale == null ? jsonHelper.extractBigDecimalNamed(PARAM_AMOUNT, element, DEFAULT_LOCALE)
diff --git a/fineract-provider/src/main/java/org/apache/fineract/portfolio/search/data/AdHocQuerySearchConstants.java b/fineract-provider/src/main/java/org/apache/fineract/portfolio/search/data/AdHocQuerySearchConstants.java
index dac8ebaf2..efd963935 100644
--- a/fineract-provider/src/main/java/org/apache/fineract/portfolio/search/data/AdHocQuerySearchConstants.java
+++ b/fineract-provider/src/main/java/org/apache/fineract/portfolio/search/data/AdHocQuerySearchConstants.java
@@ -18,6 +18,9 @@
  */
 package org.apache.fineract.portfolio.search.data;
 
+import java.util.Arrays;
+import java.util.List;
+
 public interface AdHocQuerySearchConstants {
 
     public static final String AD_HOC_SEARCH_QUERY_RESOURCE_NAME = "adHocQuery";
@@ -53,6 +56,6 @@ public interface AdHocQuerySearchConstants {
     public static final String closedLoanStatusOption = "closed";
     public static final String writeoffLoanStatusOption = "writeoff";
 
-    public static final Object[] entityTypeOptions = { "clients", "groups", "loans", "clientIdentifiers" };
+    public static final List<Object> entityTypeOptions = List.copyOf(Arrays.asList("clients", "groups", "loans", "clientIdentifiers"));
 
 }
diff --git a/fineract-provider/src/main/java/org/apache/fineract/portfolio/self/registration/SelfServiceApiConstants.java b/fineract-provider/src/main/java/org/apache/fineract/portfolio/self/registration/SelfServiceApiConstants.java
index 3b5c4d6ff..03d6ded8d 100644
--- a/fineract-provider/src/main/java/org/apache/fineract/portfolio/self/registration/SelfServiceApiConstants.java
+++ b/fineract-provider/src/main/java/org/apache/fineract/portfolio/self/registration/SelfServiceApiConstants.java
@@ -21,6 +21,7 @@ package org.apache.fineract.portfolio.self.registration;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashSet;
+import java.util.List;
 import java.util.Set;
 
 public class SelfServiceApiConstants {
@@ -43,7 +44,8 @@ public class SelfServiceApiConstants {
                     mobileNumberParamName, lastNameParamName, emailParamName, authenticationModeParamName)));
     public static final Set<String> CREATE_USER_REQUEST_DATA_PARAMETERS = Collections
             .unmodifiableSet(new HashSet<>(Arrays.asList(requestIdParamName, authenticationTokenParamName)));
-    public static final Object[] SUPPORTED_AUTHENTICATION_MODE_PARAMETERS = new Object[] { emailModeParamName, mobileModeParamName };
+    public static final List<Object> SUPPORTED_AUTHENTICATION_MODE_PARAMETERS = List
+            .copyOf(Arrays.asList(emailModeParamName, mobileModeParamName));
     public static final String SELF_SERVICE_USER_ROLE = "Self Service User";
 
 }
diff --git a/fineract-provider/src/test/java/org/apache/fineract/common/RestAssuredFixture.java b/fineract-provider/src/test/java/org/apache/fineract/common/RestAssuredFixture.java
index 48cd3b05f..91662eda2 100644
--- a/fineract-provider/src/test/java/org/apache/fineract/common/RestAssuredFixture.java
+++ b/fineract-provider/src/test/java/org/apache/fineract/common/RestAssuredFixture.java
@@ -48,12 +48,10 @@ public class RestAssuredFixture {
         this.responseSpec = new ResponseSpecBuilder().expectStatusCode(200).build();
     }
 
-    @SuppressWarnings("TypeParameterUnusedInFormals")
     public <T> T httpGet(String apiPath, String jsonAttributeToGetBack) {
         return Utils.performServerGet(this.requestSpec, this.responseSpec, getApiPath(apiPath), jsonAttributeToGetBack);
     }
 
-    @SuppressWarnings("TypeParameterUnusedInFormals")
     public <T> T httpGet(String apiPath) {
         return httpGet(apiPath, "");
     }
diff --git a/fineract-provider/src/test/java/org/apache/fineract/common/Utils.java b/fineract-provider/src/test/java/org/apache/fineract/common/Utils.java
index f0ff2cead..f1cf5c260 100644
--- a/fineract-provider/src/test/java/org/apache/fineract/common/Utils.java
+++ b/fineract-provider/src/test/java/org/apache/fineract/common/Utils.java
@@ -69,7 +69,6 @@ public class Utils {
         }
     }
 
-    @SuppressWarnings("TypeParameterUnusedInFormals")
     public static <T> T performServerGet(final RequestSpecification requestSpec, final ResponseSpecification responseSpec,
             final String getURL, final String jsonAttributeToGetBack) {
         final String json = given().spec(requestSpec).expect().spec(responseSpec).log().ifError().when().get(getURL).andReturn().asString();