I have a spring boot project that uses actuator that I am testing using karate. I recently attempted to update my project from using spring boot 2.4.5 to 2.5.0. Since making the change my tests are now failing with the following error:
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APPLICATION FAILED TO START
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Description:
An attempt was made to call a method that does not exist. The attempt was made from the following location:
org.springframework.boot.actuate.autoconfigure.metrics.mongo.MongoMetricsAutoConfiguration$MongoConnectionPoolMetricsConfiguration.mongoMetricsConnectionPoolListener(MongoMetricsAutoConfiguration.java:91)
The following method did not exist:
'void io.micrometer.core.instrument.binder.mongodb.MongoMetricsConnectionPoolListener.<init>(io.micrometer.core.instrument.MeterRegistry, io.micrometer.core.instrument.binder.mongodb.MongoConnectionPoolTagsProvider)'
The method's class, io.micrometer.core.instrument.binder.mongodb.MongoMetricsConnectionPoolListener, is available from the following locations:
jar:file:/Users/michaelruocco/.gradle/caches/modules-2/files-2.1/com.intuit.karate/karate-core/1.0.1/3f16197bf259d591cc73df52de7aa0a0fb4f2db6/karate-core-1.0.1.jar!/io/micrometer/core/instrument/binder/mongodb/MongoMetricsConnectionPoolListener.class
jar:file:/Users/michaelruocco/.gradle/caches/modules-2/files-2.1/io.micrometer/micrometer-core/1.7.0/bc7dc1605f2099dc3c39156b7f62ac889f54fb67/micrometer-core-1.7.0.jar!/io/micrometer/core/instrument/binder/mongodb/MongoMetricsConnectionPoolListener.class
The class hierarchy was loaded from the following locations:
io.micrometer.core.instrument.binder.mongodb.MongoMetricsConnectionPoolListener: file:/Users/michaelruocco/.gradle/caches/modules-2/files-2.1/com.intuit.karate/karate-core/1.0.1/3f16197bf259d591cc73df52de7aa0a0fb4f2db6/karate-core-1.0.1.jar
com.mongodb.event.ConnectionPoolListenerAdapter: file:/Users/michaelruocco/.gradle/caches/modules-2/files-2.1/org.mongodb/mongo-java-driver/3.12.8/d9e12b2056cea964a3805558382e0d30596444c5/mongo-java-driver-3.12.8.jar
Action:
Correct the classpath of your application so that it contains a single, compatible version of io.micrometer.core.instrument.binder.mongodb.MongoMetricsConnectionPoolListener
Looking at the contents of the karate-core-1.0.1.jar it has copies of these micrometer classes shaded inside the jar itself, rather than pulling them as dependencies, this means there is no way for me to exclude this dependency in my gradle file. I can also see these classes are deliberately shaded here: https://github.com/intuit/karate/blob/master/karate-core/pom.xml#L203.
Spring boot 2.4.5 actuator is using micrometer-core version: 1.6.6 Spring boot 2.5.0 actuator is using micrometer-core version: 1.7.0
So I expect the issue is that there is a breaking change between these two versions causing the problem. In order to get karate-core to place nicely with spring-boot 2.5.0 I would require a version of karate-core that is compatible with micrometer-core 1.7.0. I can't see any direct dependencies on micrometer from karate-core itself so I guess maybe it is pulling it in transitively?
I've also tried to exclude the micrometer-core dependency that actuator is pulling in, but this breaks the actuator functionality resulting in:
Caused by: java.lang.IllegalStateException: @ConditionalOnMissingBean did not specify a bean using type, name or annotation and the attempt to deduce the bean's type failed
at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.validate(OnBeanCondition.java:487)
at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.<init>(OnBeanCondition.java:436)
at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchOutcome(OnBeanCondition.java:142)
at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:47)
... 113 more
Caused by: org.springframework.boot.autoconfigure.condition.OnBeanCondition$BeanTypeDeductionException: Failed to deduce bean type for org.springframework.boot.actuate.autoconfigure.metrics.mongo.MongoMetricsAutoConfiguration$MongoConnectionPoolMetricsConfiguration.mongoConnectionPoolTagsProvider
at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.deducedBeanTypeForBeanMethod(OnBeanCondition.java:517)
at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.deducedBeanType(OnBeanCondition.java:506)
at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.<init>(OnBeanCondition.java:429)
... 115 more
Caused by: java.lang.ClassNotFoundException: io.micrometer.core.instrument.binder.mongodb.MongoConnectionPoolTagsProvider
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:606)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:168)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:468)
at org.springframework.boot.autoconfigure.condition.FilteringSpringBootCondition.resolve(FilteringSpringBootCondition.java:108)
at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.getReturnType(OnBeanCondition.java:525)
at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.deducedBeanTypeForBeanMethod(OnBeanCondition.java:513)
... 117 more
Are there any plans to create a version of karate-core that might work with spring boot 2.5.0? Or does anyone have any other suggestions for how I can work around this issue?
