[GROOVY-8912] Cannot cast object ... with class 'java.lang.Class' to class 'groovy.lang.GroovyObject'

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.5.4
• Assignee: Unassigned
• Reporter: Sergio del Amo
• Created: 06/Dec/18 18:27
• Updated: 12/Jan/19 04:49

Description

This code

MetaProperty idProp = getJavaClass().getMetaClass().getMetaProperty(GormProperties.IDENTITY)

 

throws the next error:

 org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast object 'class grails.gorm.tests.path.domain.Person' with class 'java.lang.Class' to class 'groovy.lang.GroovyObject' at org.grails.datastore.gorm.neo4j.GraphPersistentEntity.initialize(GraphPersistentEntity.groovy:89) at org.grails.datastore.mapping.model.AbstractMappingContext.initializePersistentEntity(AbstractMappingContext.java:352) at org.grails.datastore.mapping.model.AbstractMappingContext.addPersistentEntities(AbstractMappingContext.java:283) at org.grails.datastore.gorm.neo4j.Neo4jMappingContext.<init>(Neo4jMappingContext.java:108) at org.grails.datastore.gorm.neo4j.Neo4jDatastore.createMappingContext(Neo4jDatastore.java:385) at org.grails.datastore.gorm.neo4j.Neo4jDatastore.<init>(Neo4jDatastore.java:163) at org.grails.datastore.gorm.neo4j.Neo4jDatastore.<init>(Neo4jDatastore.java:250) at org.grails.datastore.gorm.neo4j.Neo4jDatastore.<init>(Neo4jDatastore.java:272) at org.grails.datastore.gorm.neo4j.Neo4jDatastore.<init>(Neo4jDatastore.java:282) at org.grails.datastore.gorm.neo4j.Neo4jDatastore.<init>(Neo4jDatastore.java:320) at grails.gorm.tests.path.PathSpec.$spock_initializeSharedFields(PathSpec.groovy:16)

 

But this is ok: 

 Class clazz = getJavaClass()
MetaClass metaClass = clazz.getMetaClass()
MetaProperty idProp = metaClass.getMetaProperty(GormProperties.IDENTITY)

 

GormProperties.IDENTITY is String defined in an interface in a .java file.

  

Steps to reproduce:.

You can find a link to the commit here:

https://github.com/grails/gorm-neo4j/commit/70a6321b902377303b762cc2cdb9e3f2c9a4b794

 

Cloning the repo, reverting that commit and execute: 

 

./gradlew --stacktrace grails-datastore-gorm-neo4j:test --tests grails.gorm.tests.path.PathSpec

 

and compilation fails

Issue Links

• duplicates: GROOVY-8955 VerifyError when AIC with @CS can't be detected as not valid