Error: Unsatisfied dependency for mavenRepositoryService when running Spring Application Advisor

Products

• VMware Tanzu Spring Essentials

Issue/Introduction

Developer is using App Advisor and getting error:

app advisor -v

Exception in thread "main" org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'mappingCreateCommand': Unsatisfied dependency expressed through field 'versionQueryService': Error creating bean with name 'versionQueryService': Unsatisfied dependency expressed through constructor parameter 0: Error creating bean with name 'mavenRepositoryService': null
at org.springframework.beans.factory.aot.AutowiredFieldValueResolver.resolveValue(AutowiredFieldValueResolver.java:181)
at org.springframework.beans.factory.aot.AutowiredFieldValueResolver.resolveAndSet(AutowiredFieldValueResolver.java:154)
at com.vmware.tanzu.spring.advisor.cli.mapping.MappingCreateCommand__Autowiring.apply(MappingCreateCommand__Autowiring.java:17)
at org.springframework.beans.factory.support.InstanceSupplier$1.get(InstanceSupplier.java:72)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.obtainInstanceFromSupplier(DefaultListableBeanFactory.java:1021)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.obtainFromSupplier(AbstractAutowireCapableBeanFactory.java:1246)

Example settings.xml to reproduce the issue, for config file: 

<?xml version="1.0"?>
<settings>
 <servers>
 <server>
 <id>central</id>
 </server>
 </servers>
</settings>

The above config is valid per schema but contians no username/password property.

App advisor fails and does not load. 

Environment

Application Advisor 1.6.x

Cause

This exception is caused by a bug in Spring App Advisor where it does not recognize lack of username and password as a valid setting.

Resolution

The workaround is to simply use a blank username and password when using a Maven repository that does not require authentication.

Example setting.xml to fix:

<?xml version="1.0"?>
<settings>
<servers>
<server>
<id>central</id>
<username/>
<password/>
</server>
</servers>
</settings>

A defect is logged against Spring App Advisor for fix in a future release.