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Eric Milles commented on GROOVY-11754: -------------------------------------- Your cast exception is here: https://github.com/matrei/grails-core/blob/9538ca0c458e08f175e57618d0cefc24b59467f4/grails-datamapping-core/src/main/groovy/org/grails/compiler/gorm/GormEntityTransformation.groovy#L163 You can stop this by reversing the condition to "classNode.isEnum() || classNode instanceof InnerClassNode". Or you could use "classNode.isEnum() || classNode.getOuterClass() != null". The failure is related to GROOVY-7971 where we have instanceof and or operator. > Compilation error: ClassCastException (unnamed module) > ------------------------------------------------------ > > Key: GROOVY-11754 > URL: https://issues.apache.org/jira/browse/GROOVY-11754 > Project: Groovy > Issue Type: Bug > Affects Versions: 5.0.1 > Reporter: Mattias Reichel > Priority: Major > > To reproduce: > {noformat} > git clone https://github.com/matrei/grails-core.git > cd grails-core > git checkout groovy-5 # or 9538ca0c458e08f175e57618d0cefc24b59467f4 > ./gradlew grails-datastore-core:compileTestGroovy{noformat} > > {noformat} > Execution failed for task ':grails-datastore-core:compileTestGroovy'. > > BUG! exception in phase 'semantic analysis' in source unit > > '/home/mattias/test/grails-core/grails-datastore-core/src/test/groovy/org/grails/datastore/mapping/model/JpaMappingSyntaxTests.groovy' > > class org.codehaus.groovy.ast.ClassNode cannot be cast to class org. > codehaus.groovy.ast.InnerClassNode (org.codehaus.groovy.ast.ClassNode and > org.codehaus.groovy.ast.InnerClassNode are in unnamed module of loader > org.gradle.internal.classloader.VisitableURLClassLoader @6cd5cc65) {noformat} > Build scan: https://ge.grails.org/s/aq37mleqgllxw -- This message was sent by Atlassian Jira (v8.20.10#820010)