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Null-Analysis - The interface ... cannot be implemented more than once with different arguments ... #2158

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jan-reidemeister-valantic opened this issue Mar 14, 2024 · 4 comments · Fixed by #2173
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Null-Analysis - The interface ... cannot be implemented more than once with different arguments ... #2158

jan-reidemeister-valantic opened this issue Mar 14, 2024 · 4 comments · Fixed by #2173
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@stephan-herrmann

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@jan-reidemeister-valantic
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Version: 2024-03 (4.31.0)
Build id: 20240307-1437

Import the attached Gradle project.
(in case the .settings are not picked up) Enable annotation-based null analysis using the jspecify annotations.

Incorrect error on DMessageHandlerRegistryImpl:

The interface MessageHandlerRegistry cannot be implemented more than once with different arguments: MessageHandlerRegistry<C,CharSequence,DIncomingMessageData> and MessageHandlerRegistry<C,CharSequence,DIncomingMessageData>.

Disabling the null analysis removes the error. Last working version was 2023-06.

sample.zip
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@stephan-herrmann : could you please check this one?

@stephan-herrmann stephan-herrmann self-assigned this Mar 14, 2024
@stephan-herrmann
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I can reproduce the problem.

@stephan-herrmann
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Last working version was 2023-06.

Also using ecj 4.29 (v20230814-2020, 3.35.0) it still passes.

@stephan-herrmann
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Broken since #1413

stephan-herrmann added a commit to stephan-herrmann/eclipse.jdt.core that referenced this issue Mar 17, 2024
@stephan-herrmann
Null-Analysis - The interface ... cannot be implemented more than once
33667c9 
with different arguments ...

fixes eclipse-jdt#2158
@stephan-herrmann stephan-herrmann mentioned this issue Mar 17, 2024
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stephan-herrmann added a commit that referenced this issue Mar 24, 2024
@stephan-herrmann
Null-Analysis - The interface ... cannot be implemented more than onc…
aeefecb 
…e with different arguments ... (#2173)

fixes #2158

+ Propagate late annotations also into parameterized supertypes
+ Additional fix ensuring proper interning in TypeSystem
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@iloveeclipse @stephan-herrmann @jan-reidemeister-valantic