Why does Spring report a factory method arg as ambiguous?
Solution 1
Simply remove name
attribute, XSD docs for name says:
Only needed to avoid ambiguities, e.g. in case of 2 arguments of
the exact same type. Note: This requires debug symbols to be
stored in the class file in order to introspect argument names!
Solution 2
I believe the problem is this method valueOf(char[] data)
You have mentioned argument type as Object.
And char[] is also an Object.
Solution 3
I had the same problem with a bean like:
<bean id="myBean" class="..MyBean">
<constructor-arg ref="bean1/>
<constructor-arg ref="bean2/>
<constructor-arg>
<bean class="MyEnum" factory-method="valueOf">
<constructor-arg value="${configString}"/>
</bean>
</constructor-arg>
<constructor-arg ref="bean3/>
</bean>
To resolve a problem I needed to remove all name attributes like:
<constructor-arg name="arg1" ref="bean1/>
All was worked for me before I moved to java8 and added one additional argument there
Simeon
Seasoned developer lead that loves distributed systems, Linux, static typed languages and drawing squares connected by arrows on a board. Generally biased towards the Java ecosystem, Spring and AWS.
Updated on June 11, 2022Comments
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Simeon about 2 years
I'm trying to create this bean:
<bean id="myBean" class="java.lang.String" factory-method="valueOf"> <constructor-arg name="obj" value="a string" type="java.lang.Object"/> </bean>
I want Spring to use this method
java.lang.String#valueOf(Object obj)
when creating the bean.I get:
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'myBean' defined in class path resource [META-INF/test-contexts/testManualDependencyBundleResolverContext.xml]: Unsatisfied dependency expressed through constructor argument with index 0 of type [char[]]: Ambiguous factory method argument types - did you specify the correct bean references as factory method arguments? Related cause: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'myBean' defined in class path resource [META-INF/test-contexts/testManualDependencyBundleResolverContext.xml]: Unsatisfied dependency expressed through constructor argument with index 0 of type [char[]]: Ambiguous factory method argument types - did you specify the correct bean references as factory method arguments? Related cause: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'myBean' defined in class path resource [META-INF/test-contexts/testManualDependencyBundleResolverContext.xml]: Unsatisfied dependency expressed through constructor argument with index 0 of type [boolean]: Ambiguous factory method argument types - did you specify the correct bean references as factory method arguments? Related cause: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'myBean' defined in class path resource [META-INF/test-contexts/testManualDependencyBundleResolverContext.xml]: Unsatisfied dependency expressed through constructor argument with index 0 of type [long]: Ambiguous factory method argument types - did you specify the correct bean references as factory method arguments? Related cause: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'myBean' defined in class path resource [META-INF/test-contexts/testManualDependencyBundleResolverContext.xml]: Unsatisfied dependency expressed through constructor argument with index 0 of type [char]: Ambiguous factory method argument types - did you specify the correct bean references as factory method arguments? Related cause: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'myBean' defined in class path resource [META-INF/test-contexts/testManualDependencyBundleResolverContext.xml]: Unsatisfied dependency expressed through constructor argument with index 0 of type [double]: Ambiguous factory method argument types - did you specify the correct bean references as factory method arguments? Related cause: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'myBean' defined in class path resource [META-INF/test-contexts/testManualDependencyBundleResolverContext.xml]: Unsatisfied dependency expressed through constructor argument with index 0 of type [float]: Ambiguous factory method argument types - did you specify the correct bean references as factory method arguments? Related cause: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'myBean' defined in class path resource [META-INF/test-contexts/testManualDependencyBundleResolverContext.xml]: Unsatisfied dependency expressed through constructor argument with index 0 of type [int]: Ambiguous factory method argument types - did you specify the correct bean references as factory method arguments? Related cause: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'myBean' defined in class path resource [META-INF/test-contexts/testManualDependencyBundleResolverContext.xml]: Unsatisfied dependency expressed through constructor argument with index 0 of type [java.lang.Object]: Ambiguous factory method argument types - did you specify the correct bean references as factory method arguments?
Why? I think I've specified everything needed for Spring to resolve the correct method I want it to use.
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Simeon about 11 yearsIt worked, thanks a lot :) I never suspected that giving it too much info could be a problem.