spring-projects/spring-framework · error · BeanCreationException

Resolution of declared constructors on bean Class [${beanCla

Error message

Resolution of declared constructors on bean Class [${beanClass.getName()}] from ClassLoader [${beanClass.getClassLoader()}] failed

What it means

Error "Resolution of declared constructors on bean Class [${beanClass.getName()}] from ClassLoader [${beanClass.getClassLoader()}] failed" thrown in spring-projects/spring-framework.

Source

Thrown at spring-beans/src/main/java/org/springframework/beans/factory/annotation/AutowiredAnnotationBeanPostProcessor.java:366

	@Override
	public Constructor<?> @Nullable [] determineCandidateConstructors(Class<?> beanClass, final String beanName)
			throws BeanCreationException {

		checkLookupMethods(beanClass, beanName);

		// Quick check on the concurrent map first, with minimal locking.
		Constructor<?>[] candidateConstructors = this.candidateConstructorsCache.get(beanClass);
		if (candidateConstructors == null) {
			// Fully synchronized resolution now...
			synchronized (this.candidateConstructorsCache) {
				candidateConstructors = this.candidateConstructorsCache.get(beanClass);
				if (candidateConstructors == null) {
					Constructor<?>[] rawCandidates;
					try {
						rawCandidates = beanClass.getDeclaredConstructors();
					}
					catch (Throwable ex) {
						throw new BeanCreationException(beanName,
								"Resolution of declared constructors on bean Class [" + beanClass.getName() +
								"] from ClassLoader [" + beanClass.getClassLoader() + "] failed", ex);
					}
					List<Constructor<?>> candidates = new ArrayList<>(rawCandidates.length);
					Constructor<?> requiredConstructor = null;
					Constructor<?> defaultConstructor = null;
					Constructor<?> primaryConstructor = BeanUtils.findPrimaryConstructor(beanClass);
					int nonSyntheticConstructors = 0;
					for (Constructor<?> candidate : rawCandidates) {
						if (!candidate.isSynthetic()) {
							nonSyntheticConstructors++;
						}
						else if (primaryConstructor != null) {
							continue;
						}
						MergedAnnotation<?> ann = findAutowiredAnnotation(candidate);
						if (ann == null) {
							Class<?> userClass = ClassUtils.getUserClass(beanClass);

View on GitHub (pinned to e8729d0438)

When it happens

Trigger: Thrown at spring-beans/src/main/java/org/springframework/beans/factory/annotation/AutowiredAnnotationBeanPostProcessor.java:366 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/5b6b2b38ffa3202a.json. Report an issue: GitHub.