diff --git a/data-prepper-core/src/main/java/org/opensearch/dataprepper/plugin/ExtensionPluginConfigurationConverter.java b/data-prepper-core/src/main/java/org/opensearch/dataprepper/plugin/ExtensionPluginConfigurationConverter.java
index 83b569239a..02ed3af01a 100644
--- a/data-prepper-core/src/main/java/org/opensearch/dataprepper/plugin/ExtensionPluginConfigurationConverter.java
+++ b/data-prepper-core/src/main/java/org/opensearch/dataprepper/plugin/ExtensionPluginConfigurationConverter.java
@@ -12,6 +12,7 @@
 import javax.inject.Inject;
 import javax.inject.Named;
 import java.time.Duration;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Objects;
@@ -49,7 +50,8 @@ public Object convert(final Class<?> extensionPluginConfigurationType, final Str
         final Object configuration = convertSettings(extensionPluginConfigurationType,
                 extensionProperties.get(rootKey));
 
-        final Set<ConstraintViolation<Object>> constraintViolations = validator.validate(configuration);
+        final Set<ConstraintViolation<Object>> constraintViolations = configuration == null ? Collections.emptySet() :
+                validator.validate(configuration);
 
         if (!constraintViolations.isEmpty()) {
             final String violationsString = constraintViolations.stream()
diff --git a/data-prepper-core/src/test/java/org/opensearch/dataprepper/plugin/ExtensionPluginConfigurationConverterTest.java b/data-prepper-core/src/test/java/org/opensearch/dataprepper/plugin/ExtensionPluginConfigurationConverterTest.java
index b4d5c36dff..bbee113e59 100644
--- a/data-prepper-core/src/test/java/org/opensearch/dataprepper/plugin/ExtensionPluginConfigurationConverterTest.java
+++ b/data-prepper-core/src/test/java/org/opensearch/dataprepper/plugin/ExtensionPluginConfigurationConverterTest.java
@@ -76,7 +76,6 @@ void convert_with_test_extension_with_config() {
 
     @Test
     void convert_with_null_rootKey_value_should_return_null() {
-        when(validator.validate(any())).thenReturn(Collections.emptySet());
         when(pipelinesDataFlowModel.getPipelineExtensions()).thenReturn(pipelineExtensions);
         final String rootKey = "test_extension";
         when(pipelineExtensions.getExtensionMap()).thenReturn(Collections.emptyMap());
@@ -86,7 +85,9 @@ void convert_with_null_rootKey_value_should_return_null() {
 
     @Test
     void convert_should_throw_exception_when_there_are_constraint_violations() {
+        when(pipelinesDataFlowModel.getPipelineExtensions()).thenReturn(pipelineExtensions);
         final String rootKey = UUID.randomUUID().toString();
+        when(pipelineExtensions.getExtensionMap()).thenReturn(Map.of(rootKey, Collections.emptyMap()));
         final String errorMessage = UUID.randomUUID().toString();
         given(constraintViolation.getMessage()).willReturn(errorMessage);
         final String propertyPathString = UUID.randomUUID().toString();