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Robin Friedli commented on GROOVY-9890: --------------------------------------- Apologies, for some reason gradle is pulling version 2.5.14 for all transitive dependencies of groovy-all 3.0.8 except for groovy-astbuilder, which is odd because there are no conflicting versions. So I'm not actually on groovy 3.0.8 after all :( > Static type checking can't find default method overload on interface > -------------------------------------------------------------------- > > Key: GROOVY-9890 > URL: https://issues.apache.org/jira/browse/GROOVY-9890 > Project: Groovy > Issue Type: Bug > Components: Static compilation, Static Type Checker > Affects Versions: 3.0.7 > Environment: jdk 11.0.6 > dependency groovy-all 3.0.7 > Reporter: Robin Friedli > Assignee: Eric Milles > Priority: Critical > Fix For: 3.0.8, 4.0.0-alpha-3 > > Time Spent: 0.5h > Remaining Estimate: 0h > > The static type checker cannot find default methods on an interface if the > method overloads an abstract method. For example, consider the following Java > classes: > {code:java} > package net.robinfriedli.botify.scripting; > public interface TestInt { > void foo(String s); > default void foo(long l) {} > } > public class TestImpl implements TestInt { > @Override > public void foo(String s) { > } > }{code} > When compiling the script > {code:java} > new net.robinfriedli.botify.scripting.TestImpl().foo(1l){code} > the following exception is thrown: > > {code:java} > MultipleCompilationErrorsException: > startup failed: > Script1.groovy: 1: [Static type checking] - Cannot find matching method > net.robinfriedli.botify.scripting.TestImpl#foo(long). Please check if the > declared type is correct and if the method exists. > @ line 1, column 1. > new net.robinfriedli.botify.scripting.TestImpl().foo(1l) > ^ > 1 error > {code} > The script runs fine without static compilation. > > Calling the implemented abstract method compiles sucessfully: > {code:java} > new net.robinfriedli.botify.scripting.TestImpl().foo('str') > {code} > However, when changing the interface to > > {code:java} > package net.robinfriedli.botify.scripting; > public interface TestInt { > void foo(String s); > default void bar(long l) {} > } > {code} > The following script compiles: > > > {code:java} > new net.robinfriedli.botify.scripting.TestImpl().bar(1l) > {code} > > The scripts are executed in Java by GroovyShell#evaluate using the following > compiler configuration: > {code:java} > CompilerConfiguration compilerConfiguration = new CompilerConfiguration(); > ASTTransformationCustomizer compileStaticCustomizer = new > ASTTransformationCustomizer( > singletonMap("extensions", > singletonList("net.robinfriedli.botify.scripting.TypeCheckingExtension")), > CompileStatic.class > ); > compilerConfiguration.addCompilationCustomizers(compileStaticCustomizer); > return compilerConfiguration; > {code} > -- This message was sent by Atlassian Jira (v8.3.4#803005)