spring-projects/spring-framework · error · IllegalArgumentException

Either requiredType or propertyPath is required

Error message

Either requiredType or propertyPath is required

What it means

Error "Either requiredType or propertyPath is required" thrown in spring-projects/spring-framework.

Source

Thrown at spring-beans/src/main/java/org/springframework/beans/PropertyEditorRegistrySupport.java:308

		target.configValueEditorsActive = this.configValueEditorsActive;
		target.defaultEditors = this.defaultEditors;
		target.overriddenDefaultEditors = this.overriddenDefaultEditors;
	}


	//---------------------------------------------------------------------
	// Management of custom editors
	//---------------------------------------------------------------------

	@Override
	public void registerCustomEditor(Class<?> requiredType, PropertyEditor propertyEditor) {
		registerCustomEditor(requiredType, null, propertyEditor);
	}

	@Override
	public void registerCustomEditor(@Nullable Class<?> requiredType, @Nullable String propertyPath, PropertyEditor propertyEditor) {
		if (requiredType == null && propertyPath == null) {
			throw new IllegalArgumentException("Either requiredType or propertyPath is required");
		}
		if (propertyPath != null) {
			if (this.customEditorsForPath == null) {
				this.customEditorsForPath = new LinkedHashMap<>(16);
			}
			this.customEditorsForPath.put(propertyPath, new CustomEditorHolder(propertyEditor, requiredType));
		}
		else {
			if (this.customEditors == null) {
				this.customEditors = new LinkedHashMap<>(16);
			}
			this.customEditors.put(requiredType, propertyEditor);
			this.customEditorCache = null;
		}
	}

	@Override
	public @Nullable PropertyEditor findCustomEditor(@Nullable Class<?> requiredType, @Nullable String propertyPath) {

View on GitHub (pinned to e8729d0438)

When it happens

Trigger: Thrown at spring-beans/src/main/java/org/springframework/beans/PropertyEditorRegistrySupport.java:308 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of spring-projects/spring-framework@e8729d0438 (2026-08-04). Data as JSON: /data/errors/a8c651aff3e28fbc.json. Report an issue: GitHub.