[GROOVY-8338] Calling Stream.of from groovy class in JDK 9 fails

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.12
• Fix Version/s: 2.6.0-alpha-3, 3.0.0-alpha-2, 2.5.0-rc-1
• Component/s: groovy-runtime
• Assignee: Jochen Theodorou
• Reporter: Marcus Nylander
• Created: 02/Oct/17 12:31
• Updated: 10/Apr/18 13:02
• Resolved: 07/Mar/18 01:21

Description

Trying to call Stream.of from groovy class (groovy version 2.4.12) using JDK 9 (jdk 9 181) fails.
Example:

package test

import java.util.stream.Stream

class B {
    static void main(String[] args) {
        Stream.of("1").forEach({ println(it) })
    }
}

The code above fails with:
Exception in thread "main" java.lang.IncompatibleClassChangeError: Method java.util.stream.Stream.of(Ljava/lang/Object;)Ljava/util/stream/Stream; must be InterfaceMethodref constant
at java_util_stream_Stream$of.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
at test.B.main(B.groovy:7)

The same occurs for other interface static methods also:

public interface D {
    static D of(String s) {
        return new D() {
        };
    }
}

class C {
    static void main(String[] args) {
        D.of("1")
    }
}

Also fails with:
Exception in thread "main" java.lang.IncompatibleClassChangeError: Method test.D.of(Ljava/lang/String;)Ltest/D; must be InterfaceMethodref constant
at test.D$of.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
at test.C.main(C.groovy:7)

Running with JDK 8 works fine.

Issue Links

• is cloned by: GROOVY-8494 CLONE - Calling Stream.of from groovy class in JDK 9 fails