[ 
https://issues.apache.org/jira/browse/GROOVY-12667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18140112#comment-18140112
 ] 

ASF GitHub Bot commented on GROOVY-12667:
-----------------------------------------

testlens-app[bot] commented on PR #3210:
URL: https://github.com/apache/groovy/pull/3210#issuecomment-6701684137

   ## 🚨 TestLens detected 4 failed tests 🚨
   
   ### Test Summary
   > [!TIP]
   > Inspect all details with the [TestLens 
CLI](https://testlens.app/docs/features/cli): `testlens pr 3210`
   
   #### [Build and test / lts \(21, 
ubuntu-latest\)](https://github.com/apache/groovy/actions/runs/42332869594/job/128283125699?pr=3210)
 > :test
   
   | Test | Runs | Flakiness |
   |---|---|--:|
   | MemoizeAtLeastTest > testDehydrateClearsTheMemoizedClosure\(\) | ❌ | 
0% 🟢 |
   | MemoizeAtMostTest > testDehydrateClearsTheMemoizedClosure\(\) | ❌ | 
0% 🟢 |
   | MemoizeBetweenTest > testDehydrateClearsTheMemoizedClosure\(\) | ❌ | 
0% 🟢 |
   | MemoizeTest > testDehydrateClearsTheMemoizedClosure\(\) | ❌ | 0% 🟢 |
   
   🏷️ Commit: 681b45dda5798a2c45fbacb99c80707c13f53dfa
   ▶️ Tests:  75140 executed
   🟡 Checks: 9/25 completed
   
   ### Test Failures
   
   <details><summary><strong>MemoizeAtLeastTest > 
testDehydrateClearsTheMemoizedClosure()</strong> (:test in <a 
href="https://github.com/apache/groovy/actions/runs/42332869594/job/128283125699?pr=3210";>Build
 and test / lts (21, ubuntu-latest)</a>)</summary>
   
   ```
   java.lang.AssertionError: Closure 
org.codehaus.groovy.runtime.memoize.AbstractMemoizeTestCase$_testDehydrateClearsTheMemoizedClosure_closure11@233db8e9
 should have failed with an exception of type java.lang.NullPointerException, 
but got: groovy.lang.MissingMethodException: No signature of method: foo for 
class: 
org.codehaus.groovy.runtime.memoize.AbstractMemoizeTestCase$Named$_closure_closure1
 is applicable for argument types: () values: []
   Possible solutions: any(), find(), any(), find(), any(groovy.lang.Closure), 
find(groovy.lang.Closure)
        at groovy.test.GroovyAssert.fail(GroovyAssert.java:121)
        at groovy.test.GroovyAssert.shouldFail(GroovyAssert.java:254)
        at 
org.codehaus.groovy.runtime.memoize.AbstractMemoizeTestCase.testDehydrateClearsTheMemoizedClosure(AbstractMemoizeTestCase.groovy:215)
        at java.base/java.lang.reflect.Method.invoke(Method.java:580)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
   ```
   
   </details>
   <details><summary><strong>MemoizeAtMostTest > 
testDehydrateClearsTheMemoizedClosure()</strong> (:test in <a 
href="https://github.com/apache/groovy/actions/runs/42332869594/job/128283125699?pr=3210";>Build
 and test / lts (21, ubuntu-latest)</a>)</summary>
   
   ```
   java.lang.AssertionError: Closure 
org.codehaus.groovy.runtime.memoize.AbstractMemoizeTestCase$_testDehydrateClearsTheMemoizedClosure_closure11@1200458e
 should have failed with an exception of type java.lang.NullPointerException, 
but got: groovy.lang.MissingMethodException: No signature of method: foo for 
class: 
org.codehaus.groovy.runtime.memoize.AbstractMemoizeTestCase$Named$_closure_closure1
 is applicable for argument types: () values: []
   Possible solutions: any(), find(), any(), find(), any(groovy.lang.Closure), 
find(groovy.lang.Closure)
        at groovy.test.GroovyAssert.fail(GroovyAssert.java:121)
        at groovy.test.GroovyAssert.shouldFail(GroovyAssert.java:254)
        at 
org.codehaus.groovy.runtime.memoize.AbstractMemoizeTestCase.testDehydrateClearsTheMemoizedClosure(AbstractMemoizeTestCase.groovy:215)
        at java.base/java.lang.reflect.Method.invoke(Method.java:580)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
   ```
   
   </details>
   <details><summary><strong>MemoizeBetweenTest > 
testDehydrateClearsTheMemoizedClosure()</strong> (:test in <a 
href="https://github.com/apache/groovy/actions/runs/42332869594/job/128283125699?pr=3210";>Build
 and test / lts (21, ubuntu-latest)</a>)</summary>
   
   ```
   java.lang.AssertionError: Closure 
org.codehaus.groovy.runtime.memoize.AbstractMemoizeTestCase$_testDehydrateClearsTheMemoizedClosure_closure11@9b76b60
 should have failed with an exception of type java.lang.NullPointerException, 
but got: groovy.lang.MissingMethodException: No signature of method: foo for 
class: 
org.codehaus.groovy.runtime.memoize.AbstractMemoizeTestCase$Named$_closure_closure1
 is applicable for argument types: () values: []
   Possible solutions: any(), find(), any(), find(), any(groovy.lang.Closure), 
find(groovy.lang.Closure)
        at groovy.test.GroovyAssert.fail(GroovyAssert.java:121)
        at groovy.test.GroovyAssert.shouldFail(GroovyAssert.java:254)
        at 
org.codehaus.groovy.runtime.memoize.AbstractMemoizeTestCase.testDehydrateClearsTheMemoizedClosure(AbstractMemoizeTestCase.groovy:215)
        at java.base/java.lang.reflect.Method.invoke(Method.java:580)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
   ```
   
   </details>
   <details><summary><strong>MemoizeTest > 
testDehydrateClearsTheMemoizedClosure()</strong> (:test in <a 
href="https://github.com/apache/groovy/actions/runs/42332869594/job/128283125699?pr=3210";>Build
 and test / lts (21, ubuntu-latest)</a>)</summary>
   
   ```
   java.lang.AssertionError: Closure 
org.codehaus.groovy.runtime.memoize.AbstractMemoizeTestCase$_testDehydrateClearsTheMemoizedClosure_closure11@71a3e05c
 should have failed with an exception of type java.lang.NullPointerException, 
but got: groovy.lang.MissingMethodException: No signature of method: foo for 
class: 
org.codehaus.groovy.runtime.memoize.AbstractMemoizeTestCase$Named$_closure_closure1
 is applicable for argument types: () values: []
   Possible solutions: any(), find(), any(), find(), any(groovy.lang.Closure), 
find(groovy.lang.Closure)
        at groovy.test.GroovyAssert.fail(GroovyAssert.java:121)
        at groovy.test.GroovyAssert.shouldFail(GroovyAssert.java:254)
        at 
org.codehaus.groovy.runtime.memoize.AbstractMemoizeTestCase.testDehydrateClearsTheMemoizedClosure(AbstractMemoizeTestCase.groovy:215)
        at java.base/java.lang.reflect.Method.invoke(Method.java:580)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
   ```
   
   </details>
   
   ### Rerun Controls
   > [!NOTE]
   > Checks are currently running using the configuration below.
   
   Select tests to mute in this pull request:
   
   🔲 MemoizeAtLeastTest > testDehydrateClearsTheMemoizedClosure\(\) <!

> Implicit-this call in a DELEGATE_FIRST closure with a null delegate throws 
> NullPointerException instead of calling the owner
> ----------------------------------------------------------------------------------------------------------------------------
>
>                 Key: GROOVY-12667
>                 URL: https://issues.apache.org/jira/browse/GROOVY-12667
>             Project: Groovy
>          Issue Type: Bug
>    Affects Versions: 4.0.33, 5.0.8, 5.1.3, 6.0.0
>            Reporter: Scott Murphy Heiberg
>            Priority: Major
>
> {code:groovy}
> class Owner {
>     def foo() { 'owner' }
>     def test() {
>         def c = { -> foo() }
>         c.resolveStrategy = Closure.DELEGATE_FIRST
>         c.delegate = null
>         c()
>     }
> }
> assert new Owner().test() == 'owner'
> {code}
> *Actual:* {{java.lang.NullPointerException: Cannot invoke method foo() on 
> null object}}. The same happens for OWNER_FIRST with a null owner (the 
> delegate is never tried), for a dehydrated closure, and for a method that 
> neither candidate has (NPE instead of MissingMethodException). Since 
> GROOVY-11858, {{toString()}} in such a closure returns "null" and 
> {{is(null)}} returns true, because they run against NullObject.
> *Expected:* a null delegate (or owner) is skipped and the other candidate 
> answers, as in Groovy 3 and as property access ({{Closure.getProperty}}) 
> still does. When neither answers, a MissingMethodException is thrown.
> Cause: GROOVY-7232 removed the {{instanceof GroovyObject}} check from the 
> DELEGATE_FIRST and OWNER_FIRST branches of {{ClosureMetaClass.invokeMethod}}, 
> which also let a null delegate or owner through to 
> {{InvokerHelper.invokeMethod(null, ...)}}.
> Verified: 4.0.33, 5.0.8, 6.0.0 and master affected; 3.0.25 and 2.4.15 not 
> affected.



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