Comments (5)
lpedrosa
commented on May 25, 2024
I believe this is a groovy bug. The groovy team seemed to have fixed something when calling static methods, which are defined on interfaces:
However, something has changed on Java 9. I have created a simple example that reproduces the error shown above.
Other projects seems to be having the same problem:
- palantir/gradle-docker#96
- The jshell gradle plugin I am trying to contribute to
Not sure what is the best approach here. Should this be raised as an issue in the Groovy project github?
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sormuras
commented on May 25, 2024
According to the state of the linked Groovy issue 7879 it should be resolved since Groovy 2.4.11.
But, using
------------------------------------------------------------
Gradle 4.6
------------------------------------------------------------
Build time: 2018-02-28 13:36:36 UTC
Revision: 8fa6ce7945b640e6168488e4417f9bb96e4ab46c
Groovy: 2.4.12
Ant: Apache Ant(TM) version 1.9.9 compiled on February 2 2017
JVM: 10-ea ("Oracle Corporation" 10-ea+42)
OS: Windows 10 10.0 amd64
R:\dev\github\junit-team\junit5>gradlew build
with this Java 9 code:
java.util.spi.ToolProvider.findFirst('jar').get()
...it still fails with Method java.util.spi.ToolProvider.findFirst(Ljava/lang/String;)Ljava/util/Optional; must be InterfaceMethodref constant
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sormuras
commented on May 25, 2024
Happens with Gradle 4.7 (Groovy 2.4.12) as well.
Seems to be fixed with Groovy 3.0-alpha-2, though:
groovy -e "java.util.spi.ToolProvider.findFirst('jar').get().run(System.out, System.err, '--version')"
WARNING: Using incubator modules: jdk.incubator.httpclient
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.codehaus.groovy.vmplugin.v7.Java7$1 (file:/../lib/groovy-3.0.0-alpha-2.jar) to constructor java.lang.invoke.MethodHandles$Lookup(java.lang.Class,int)
WARNING: Please consider reporting this to the maintainers of org.codehaus.groovy.vmplugin.v7.Java7$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
jar 10
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sormuras
commented on May 25, 2024
Seems to be fixed in 2.4.16: https://issues.apache.org/jira/browse/GROOVY-8528
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oehme
commented on May 25, 2024
This works fine with Groovy 2.4.15
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