`MalformedParametersException` on JDK 8 for synthetic bridge methods in Jupiter classes (5.11.0-M1) #3797

kaipe · 2024-04-26T13:50:13Z

When using JDK 8 and junit-jupiter-engine-5.11.0-M1:
MalformedParametersException is thrown when calling java.lang.reflect.Method#getParameters() on some synthetic bridge methods.

Concerns version 5.11.0-M1 only: doesn't occur with 5.10.2 and older releases of "junit-jupiter-engine".

Also it only happens when using JDK-8:

Java : 1.8
JVM vendor name : Private Build
JVM vendor version : 25.402-b06
JVM name : OpenJDK 64-Bit Server VM
JVM version : 1.8.0_402-8u402-ga-2ubuntu1~22.04-b06
JVM info : mixed mode
OS name : Linux
OS version : 6.5.0-28-generic

This only concerns JDK 8. Everything seems to work just fine with later JDKs (e.g. 11, 17, 21).

There is something about how junit-jupiter-engine-5.11.0-M1 was compiled that makes it not fully compatible with JDK 8.

Steps to reproduce

Output from this program pinpoints the root problem:

import java.lang.reflect.MalformedParametersException;
import java.lang.reflect.Method;
import java.util.*;
import org.junit.jupiter.engine.descriptor.*;
import org.junit.platform.engine.support.hierarchical.EngineExecutionContext;

class MalformedParametersException_forJupiterSyntheticNodeMethodImplementations_onlyOnJdk8 {
    public static void main(String[] ___) {
        System.out.println("\nRunning on " + System.getProperty("java.version") + " ...");

        java.util.stream.Stream.of(
                JupiterTestDescriptor.class, ClassBasedTestDescriptor.class,
                ClassTestDescriptor.class, MethodBasedTestDescriptor.class,
                TestMethodTestDescriptor.class, TestTemplateTestDescriptor.class,
                TestTemplateInvocationTestDescriptor.class,
                TestFactoryTestDescriptor.class, NestedClassTestDescriptor.class)

                .forEach(descriptorClass -> {

            Set<String> reasonsForMalformedParameters = new HashSet<>();
            StringBuilder methodsWithMalformedParameters = new StringBuilder();
            for (Method m : descriptorClass.getDeclaredMethods()) {
                try {
                    m.getParameters();

                } catch (MalformedParametersException badParameters) {
                    assert m.isSynthetic();
                    assert m.getParameterTypes()[0] == EngineExecutionContext.class;
                    reasonsForMalformedParameters.add(badParameters.getMessage());
                    methodsWithMalformedParameters.append("\n ->").append(m
                            .toString().substring("public".length())
                            .replaceAll("(?<=[ ,(])[a-zA-Z\\.]*\\.", " ")
                            .replaceFirst(" throws .++", ""));
                }
            }
            if (false == reasonsForMalformedParameters.isEmpty()) {
                System.out.println("\n" + reasonsForMalformedParameters
                        + " was thrown for synthetic bridge methods on "
                        + descriptorClass.getSimpleName() + ":" + methodsWithMalformedParameters);
            }
        });
    }
}

Running the above program on my laptop, using JDK 8 and junit-jupiter-engine-5.11.0-M1, results in this output:

Running on 1.8.0_402 ...

[Invalid parameter name ""] was thrown for synthetic bridge methods on JupiterTestDescriptor:
 ->  Node$SkipResult  shouldBeSkipped( EngineExecutionContext)
 -> void  cleanUp( EngineExecutionContext)
 ->  EngineExecutionContext  prepare( EngineExecutionContext)

[Invalid parameter name ""] was thrown for synthetic bridge methods on ClassBasedTestDescriptor:
 ->  EngineExecutionContext  prepare( EngineExecutionContext)
 ->  EngineExecutionContext  before( EngineExecutionContext)
 -> void  after( EngineExecutionContext)

[Invalid parameter name ""] was thrown for synthetic bridge methods on MethodBasedTestDescriptor:
 -> void  nodeSkipped( EngineExecutionContext, TestDescriptor, Node$SkipResult)

[Invalid parameter name ""] was thrown for synthetic bridge methods on TestMethodTestDescriptor:
 -> void  cleanUp( EngineExecutionContext)
 -> void  nodeFinished( EngineExecutionContext, TestDescriptor, TestExecutionResult)
 ->  EngineExecutionContext  execute( EngineExecutionContext, Node$DynamicTestExecutor)
 ->  EngineExecutionContext  prepare( EngineExecutionContext)

[Invalid parameter name ""] was thrown for synthetic bridge methods on TestTemplateTestDescriptor:
 ->  EngineExecutionContext  execute( EngineExecutionContext, Node$DynamicTestExecutor)
 ->  EngineExecutionContext  prepare( EngineExecutionContext)

[Invalid parameter name ""] was thrown for synthetic bridge methods on TestTemplateInvocationTestDescriptor:
 -> void  after( EngineExecutionContext)

[Invalid parameter name ""] was thrown for synthetic bridge methods on TestFactoryTestDescriptor:
 -> void  nodeSkipped( EngineExecutionContext, TestDescriptor, Node$SkipResult)
 -> void  nodeFinished( EngineExecutionContext, TestDescriptor, TestExecutionResult)

The above pinpoints a root problem that is far away from regular developer concerns, but it causes other indirect problems further down the road. E.g. using Mockito 4.11's inline-mockmaker to mock the above classes (on JDK 8) is problematic: "Mockito cannot mock this class: ...".

But test descriptor classes that don't have these synthetic bridge methods (e.g. ClassTestDescriptor and NestedClassTestDescriptor) are perfectly mockable.

Context

Above program was run with these jars on classpath:

junit-jupiter-engine-5.11.0-M1.jar
unit-platform-engine-1.11.0-M1.jar
junit-platform-commons-1.11.0-M1.jar
junit-jupiter-api-5.11.0-M1.jar

JDK details:

Java : 1.8
JVM vendor name : Private Build
JVM vendor version : 25.402-b06
JVM name : OpenJDK 64-Bit Server VM
JVM version : 1.8.0_402-8u402-ga-2ubuntu1~22.04-b06
JVM info : mixed mode
OS name : Linux
OS version : 6.5.0-28-generic

This issue report only concerns classes of junit-jupiter-engine-5.11.0-M1.jar, but there is reason to suspect similar situation with other 5.11.0-M1 artifacts wherever there are synthetic bridge methods.

The text was updated successfully, but these errors were encountered:

To improve consistency and avoid confusion regarding primitive types and their wrapper types, this commit ensures that we always use class literals for primitive types. For example, instead of using the `Void.TYPE` constant, we now consistently use `void.class`.

marcphilipp · 2024-04-28T14:57:51Z

Thanks for the detailed report! Based on your reproducer I created a test (see marc/3797-bridge-method-reproducer branch) and used it find the initial commit introducing the issue: 8930313. In that commit, the build was switched to use JDK 21 instead of 17 for compilation.

The 5.11.0-M1 binaries where created using

Created-By: 21.0.2 (Eclipse Adoptium 21.0.2+13-LTS)

I've verified locally that the problem persists with Temurin 21.0.3+9.

marcphilipp · 2024-04-28T15:14:04Z

Here's a gist with the output of javap -v for JupiterTestDescriptor.class when compiled with Java 17 (on commit 6687a76) and 21 (on commit 8930313): https://gist.github.com/marcphilipp/8bb33c88a6af8067288c731680181598

Diff

1,3c1,3
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<   Last modified Apr 28, 2024; size 16084 bytes
<   SHA-256 checksum 464709a464e64cce32149ca46bd5870c09179d47c818c98981621369216f0ad1
---
> Classfile 21-JupiterTestDescriptor.class
>   Last modified Apr 28, 2024; size 16136 bytes
>   SHA-256 checksum c019ac7ee7b3a2a1aaaca153965d5b123cec4a79e162fdae8d4ab097fbc553c6
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<   #454 = Class              #456          // java/lang/invoke/LambdaMetafactory
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<   #459 = MethodType         #282          //  (Ljava/lang/Object;)Ljava/lang/Object;
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<   #461 = InterfaceMethodref #22.#313      // org/junit/jupiter/api/Tag.value:()Ljava/lang/String;
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<   #467 = Methodref          #8.#468       // org/junit/jupiter/engine/descriptor/JupiterTestDescriptor.lambda$getTags$1:(Ljava/lang/reflect/AnnotatedElement;Ljava/lang/String;)Z
<   #468 = NameAndType        #434:#435     // lambda$getTags$1:(Ljava/lang/reflect/AnnotatedElement;Ljava/lang/String;)Z
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<   #471 = Methodref          #327.#472     // org/junit/platform/engine/TestTag.create:(Ljava/lang/String;)Lorg/junit/platform/engine/TestTag;
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<   #477 = MethodHandle       8:#478        // REF_newInvokeSpecial java/util/LinkedHashSet."<init>":()V
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<   #484 = Methodref          #83.#485      // java/util/Collections.unmodifiableSet:(Ljava/util/Set;)Ljava/util/Set;
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---
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>   #478 = Methodref          #83.#479      // java/util/Collections.unmodifiableSet:(Ljava/util/Set;)Ljava/util/Set;
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>   #490 = MethodType         #151          //  (Lorg/junit/jupiter/api/parallel/ExecutionMode;)Lorg/junit/platform/engine/support/hierarchical/Node$ExecutionMode;
>   #491 = MethodHandle       6:#492        // REF_invokeStatic org/junit/jupiter/engine/descriptor/JupiterTestDescriptor.lambda$getExclusiveResourcesFromAnnotation$2:(Lorg/junit/jupiter/api/parallel/ResourceLock;)Lorg/junit/platform/engine/support/hierarchical/ExclusiveResource;
>   #492 = Methodref          #8.#493       // org/junit/jupiter/engine/descriptor/JupiterTestDescriptor.lambda$getExclusiveResourcesFromAnnotation$2:(Lorg/junit/jupiter/api/parallel/ResourceLock;)Lorg/junit/platform/engine/support/hierarchical/ExclusiveResource;
>   #493 = NameAndType        #431:#432     // lambda$getExclusiveResourcesFromAnnotation$2:(Lorg/junit/jupiter/api/parallel/ResourceLock;)Lorg/junit/platform/engine/support/hierarchical/ExclusiveResource;
>   #494 = MethodType         #432          //  (Lorg/junit/jupiter/api/parallel/ResourceLock;)Lorg/junit/platform/engine/support/hierarchical/ExclusiveResource;
>   #495 = MethodHandle       6:#496        // REF_invokeStatic org/junit/jupiter/engine/descriptor/JupiterTestDescriptor.lambda$getTags$0:(Ljava/lang/String;Ljava/lang/reflect/AnnotatedElement;)Ljava/lang/String;
>   #496 = Methodref          #8.#497       // org/junit/jupiter/engine/descriptor/JupiterTestDescriptor.lambda$getTags$0:(Ljava/lang/String;Ljava/lang/reflect/AnnotatedElement;)Ljava/lang/String;
>   #497 = NameAndType        #439:#440     // lambda$getTags$0:(Ljava/lang/String;Ljava/lang/reflect/AnnotatedElement;)Ljava/lang/String;
>   #498 = MethodType         #204          //  ()Ljava/lang/String;
>   #499 = MethodHandle       6:#500        // REF_invokeStatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
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>   #501 = Class              #503          // java/lang/invoke/LambdaMetafactory
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>   #503 = Utf8               java/lang/invoke/LambdaMetafactory
>   #504 = Utf8               metafactory
>   #505 = Utf8               (Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
>   #506 = Utf8               InnerClasses
>   #507 = Utf8               ExceptionHandlerInvoker
>   #508 = Utf8               ExecutionMode
>   #509 = Utf8               LockMode
>   #510 = Utf8               SkipResult
>   #511 = Class              #512          // org/apiguardian/api/API$Status
>   #512 = Utf8               org/apiguardian/api/API$Status
>   #513 = Class              #514          // org/apiguardian/api/API
>   #514 = Utf8               org/apiguardian/api/API
>   #515 = Utf8               Status
>   #516 = Class              #517          // java/lang/invoke/MethodHandles$Lookup
>   #517 = Utf8               java/lang/invoke/MethodHandles$Lookup
>   #518 = Class              #519          // java/lang/invoke/MethodHandles
>   #519 = Utf8               java/lang/invoke/MethodHandles
>   #520 = Utf8               Lookup
959a961,963
>     MethodParameters:
>       Name                           Flags
>       <no name>                      synthetic
977a982,984
>     MethodParameters:
>       Name                           Flags
>       <no name>                      synthetic
995a1003,1005
>     MethodParameters:
>       Name                           Flags
>       <no name>                      synthetic
1014c1024
< Signature: #441                         // Lorg/junit/platform/engine/support/descriptor/AbstractTestDescriptor;Lorg/junit/platform/engine/support/hierarchical/Node<Lorg/junit/jupiter/engine/execution/JupiterEngineExecutionContext;>;
---
> Signature: #442                         // Lorg/junit/platform/engine/support/descriptor/AbstractTestDescriptor;Lorg/junit/platform/engine/support/hierarchical/Node<Lorg/junit/jupiter/engine/execution/JupiterEngineExecutionContext;>;
1017c1027
<   0: #445(#446=e#447.#448,#449=s#450)
---
>   0: #446(#447=e#448.#449,#450=s#451)
1023c1033
<   0: #452 REF_invokeStatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
---
>   0: #499 REF_invokeStatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
1025,1028c1035,1038
<       #459 (Ljava/lang/Object;)Ljava/lang/Object;
<       #460 REF_invokeInterface org/junit/jupiter/api/Tag.value:()Ljava/lang/String;
<       #462 (Lorg/junit/jupiter/api/Tag;)Ljava/lang/String;
<   1: #452 REF_invokeStatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
---
>       #453 (Ljava/lang/Object;)Ljava/lang/Object;
>       #454 REF_invokeInterface org/junit/jupiter/api/Tag.value:()Ljava/lang/String;
>       #456 (Lorg/junit/jupiter/api/Tag;)Ljava/lang/String;
>   1: #499 REF_invokeStatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
1030,1033c1040,1043
<       #464 (Ljava/lang/Object;)Z
<       #466 REF_invokeStatic org/junit/jupiter/engine/descriptor/JupiterTestDescriptor.lambda$getTags$1:(Ljava/lang/reflect/AnnotatedElement;Ljava/lang/String;)Z
<       #469 (Ljava/lang/String;)Z
<   2: #452 REF_invokeStatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
---
>       #458 (Ljava/lang/Object;)Z
>       #460 REF_invokeStatic org/junit/jupiter/engine/descriptor/JupiterTestDescriptor.lambda$getTags$1:(Ljava/lang/reflect/AnnotatedElement;Ljava/lang/String;)Z
>       #463 (Ljava/lang/String;)Z
>   2: #499 REF_invokeStatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
1035,1038c1045,1048
<       #459 (Ljava/lang/Object;)Ljava/lang/Object;
<       #470 REF_invokeStatic org/junit/platform/engine/TestTag.create:(Ljava/lang/String;)Lorg/junit/platform/engine/TestTag;
<       #475 (Ljava/lang/String;)Lorg/junit/platform/engine/TestTag;
<   3: #452 REF_invokeStatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
---
>       #453 (Ljava/lang/Object;)Ljava/lang/Object;
>       #464 REF_invokeStatic org/junit/platform/engine/TestTag.create:(Ljava/lang/String;)Lorg/junit/platform/engine/TestTag;
>       #469 (Ljava/lang/String;)Lorg/junit/platform/engine/TestTag;
>   3: #499 REF_invokeStatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
1040,1043c1050,1053
<       #476 ()Ljava/lang/Object;
<       #477 REF_newInvokeSpecial java/util/LinkedHashSet."<init>":()V
<       #481 ()Ljava/util/LinkedHashSet;
<   4: #452 REF_invokeStatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
---
>       #470 ()Ljava/lang/Object;
>       #471 REF_newInvokeSpecial java/util/LinkedHashSet."<init>":()V
>       #475 ()Ljava/util/LinkedHashSet;
>   4: #499 REF_invokeStatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
1045,1048c1055,1058
<       #459 (Ljava/lang/Object;)Ljava/lang/Object;
<       #483 REF_invokeStatic java/util/Collections.unmodifiableSet:(Ljava/util/Set;)Ljava/util/Set;
<       #488 (Ljava/util/LinkedHashSet;)Ljava/util/Set;
<   5: #452 REF_invokeStatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
---
>       #453 (Ljava/lang/Object;)Ljava/lang/Object;
>       #477 REF_invokeStatic java/util/Collections.unmodifiableSet:(Ljava/util/Set;)Ljava/util/Set;
>       #482 (Ljava/util/LinkedHashSet;)Ljava/util/Set;
>   5: #499 REF_invokeStatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
1050,1053c1060,1063
<       #459 (Ljava/lang/Object;)Ljava/lang/Object;
<       #490 REF_invokeInterface org/junit/jupiter/api/parallel/Execution.value:()Lorg/junit/jupiter/api/parallel/ExecutionMode;
<       #493 (Lorg/junit/jupiter/api/parallel/Execution;)Lorg/junit/jupiter/api/parallel/ExecutionMode;
<   6: #452 REF_invokeStatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
---
>       #453 (Ljava/lang/Object;)Ljava/lang/Object;
>       #484 REF_invokeInterface org/junit/jupiter/api/parallel/Execution.value:()Lorg/junit/jupiter/api/parallel/ExecutionMode;
>       #487 (Lorg/junit/jupiter/api/parallel/Execution;)Lorg/junit/jupiter/api/parallel/ExecutionMode;
>   6: #499 REF_invokeStatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
1055,1058c1065,1068
<       #459 (Ljava/lang/Object;)Ljava/lang/Object;
<       #495 REF_invokeStatic org/junit/jupiter/engine/descriptor/JupiterTestDescriptor.toExecutionMode:(Lorg/junit/jupiter/api/parallel/ExecutionMode;)Lorg/junit/platform/engine/support/hierarchical/Node$ExecutionMode;
<       #496 (Lorg/junit/jupiter/api/parallel/ExecutionMode;)Lorg/junit/platform/engine/support/hierarchical/Node$ExecutionMode;
<   7: #452 REF_invokeStatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
---
>       #453 (Ljava/lang/Object;)Ljava/lang/Object;
>       #489 REF_invokeStatic org/junit/jupiter/engine/descriptor/JupiterTestDescriptor.toExecutionMode:(Lorg/junit/jupiter/api/parallel/ExecutionMode;)Lorg/junit/platform/engine/support/hierarchical/Node$ExecutionMode;
>       #490 (Lorg/junit/jupiter/api/parallel/ExecutionMode;)Lorg/junit/platform/engine/support/hierarchical/Node$ExecutionMode;
>   7: #499 REF_invokeStatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
1060,1063c1070,1073
<       #459 (Ljava/lang/Object;)Ljava/lang/Object;
<       #497 REF_invokeStatic org/junit/jupiter/engine/descriptor/JupiterTestDescriptor.lambda$getExclusiveResourcesFromAnnotation$2:(Lorg/junit/jupiter/api/parallel/ResourceLock;)Lorg/junit/platform/engine/support/hierarchical/ExclusiveResource;
<       #500 (Lorg/junit/jupiter/api/parallel/ResourceLock;)Lorg/junit/platform/engine/support/hierarchical/ExclusiveResource;
<   8: #452 REF_invokeStatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
---
>       #453 (Ljava/lang/Object;)Ljava/lang/Object;
>       #491 REF_invokeStatic org/junit/jupiter/engine/descriptor/JupiterTestDescriptor.lambda$getExclusiveResourcesFromAnnotation$2:(Lorg/junit/jupiter/api/parallel/ResourceLock;)Lorg/junit/platform/engine/support/hierarchical/ExclusiveResource;
>       #494 (Lorg/junit/jupiter/api/parallel/ResourceLock;)Lorg/junit/platform/engine/support/hierarchical/ExclusiveResource;
>   8: #499 REF_invokeStatic java/lang/invoke/LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
1065,1067c1075,1077
<       #476 ()Ljava/lang/Object;
<       #501 REF_invokeStatic org/junit/jupiter/engine/descriptor/JupiterTestDescriptor.lambda$getTags$0:(Ljava/lang/String;Ljava/lang/reflect/AnnotatedElement;)Ljava/lang/String;
<       #504 ()Ljava/lang/String;
---
>       #470 ()Ljava/lang/Object;
>       #495 REF_invokeStatic org/junit/jupiter/engine/descriptor/JupiterTestDescriptor.lambda$getTags$0:(Ljava/lang/String;Ljava/lang/reflect/AnnotatedElement;)Ljava/lang/String;
>       #498 ()Ljava/lang/String;
1069,1070c1079,1080
<   static #506= #109 of #8;                // ExceptionHandlerInvoker=class org/junit/jupiter/engine/descriptor/JupiterTestDescriptor$ExceptionHandlerInvoker of class org/junit/jupiter/engine/descriptor/JupiterTestDescriptor
<   public static final #507= #134 of #360; // ExecutionMode=class org/junit/platform/engine/support/hierarchical/Node$ExecutionMode of class org/junit/platform/engine/support/hierarchical/Node
---
>   static #507= #109 of #8;                // ExceptionHandlerInvoker=class org/junit/jupiter/engine/descriptor/JupiterTestDescriptor$ExceptionHandlerInvoker of class org/junit/jupiter/engine/descriptor/JupiterTestDescriptor
>   public static final #508= #134 of #360; // ExecutionMode=class org/junit/platform/engine/support/hierarchical/Node$ExecutionMode of class org/junit/platform/engine/support/hierarchical/Node
1072,1075c1082,1085
<   public static final #508= #222 of #310; // LockMode=class org/junit/platform/engine/support/hierarchical/ExclusiveResource$LockMode of class org/junit/platform/engine/support/hierarchical/ExclusiveResource
<   public static #509= #286 of #360;       // SkipResult=class org/junit/platform/engine/support/hierarchical/Node$SkipResult of class org/junit/platform/engine/support/hierarchical/Node
<   public static final #514= #510 of #512; // Status=class org/apiguardian/api/API$Status of class org/apiguardian/api/API
<   public static final #519= #515 of #517; // Lookup=class java/lang/invoke/MethodHandles$Lookup of class java/lang/invoke/MethodHandles
---
>   public static final #509= #222 of #310; // LockMode=class org/junit/platform/engine/support/hierarchical/ExclusiveResource$LockMode of class org/junit/platform/engine/support/hierarchical/ExclusiveResource
>   public static #510= #286 of #360;       // SkipResult=class org/junit/platform/engine/support/hierarchical/Node$SkipResult of class org/junit/platform/engine/support/hierarchical/Node
>   public static final #515= #511 of #513; // Status=class org/apiguardian/api/API$Status of class org/apiguardian/api/API
>   public static final #520= #516 of #518; // Lookup=class java/lang/invoke/MethodHandles$Lookup of class java/lang/invoke/MethodHandles

I think the most interesting part is this:

959a961,963
>     MethodParameters:
>       Name                           Flags
>       <no name>                      synthetic
977a982,984
>     MethodParameters:
>       Name                           Flags
>       <no name>                      synthetic
995a1003,1005
>     MethodParameters:
>       Name                           Flags
>       <no name>                      synthetic

which is on all three synthetic methods.

sormuras · 2024-04-29T03:12:51Z

This is the underlying change, introduced in Java 21: https://bugs.openjdk.org/browse/JDK-8292275

marcphilipp · 2024-04-29T06:07:17Z

Adding -parameters seems to fix the issue: #3798

Fixes #3797.

sormuras · 2024-04-29T15:54:35Z

FYI: https://bugs.openjdk.org/browse/JDK-8058322 fixed the underlying issue some time ago.

github-actions bot added the status: new label Apr 26, 2024

sormuras added this to the 5.11 M2 milestone Apr 26, 2024

sormuras added type: regression component: Jupiter labels Apr 26, 2024

sbrannen changed the title ~~Regression: MalformedParametersException on JDK-8 for synthetic bridge methods on Jupiter classes (version 5.11.0-M1 only)~~ MalformedParametersException on JDK 8 for synthetic bridge methods in Jupiter classes (5.11.0-M1) Apr 28, 2024

sbrannen removed the status: new label Apr 28, 2024

marcphilipp self-assigned this Apr 28, 2024

marcphilipp added the status: in progress label Apr 28, 2024

marcphilipp linked a pull request Apr 28, 2024 that will close this issue

Fix reflection issue on JDK 8 for synthetic bridge methods #3798

Merged

marcphilipp added a commit that referenced this issue Apr 29, 2024

Enable -parameters

b0636b0

Fixes #3797.

marcphilipp mentioned this issue Apr 29, 2024

Fix reflection issue on JDK 8 for synthetic bridge methods #3798

Merged

marcphilipp added a commit that referenced this issue Apr 29, 2024

Enable -parameters

04a82b6

Fixes #3797.

sbrannen added component: Platform theme: build labels Apr 29, 2024

marcphilipp closed this as completed in #3798 Apr 29, 2024

marcphilipp added a commit that referenced this issue Apr 29, 2024

Enable -parameters

c8e1c6e

Fixes #3797.

sbrannen removed the status: in progress label Apr 29, 2024

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`MalformedParametersException` on JDK 8 for synthetic bridge methods in Jupiter classes (5.11.0-M1) #3797

`MalformedParametersException` on JDK 8 for synthetic bridge methods in Jupiter classes (5.11.0-M1) #3797

kaipe commented Apr 26, 2024 •

edited by sbrannen

marcphilipp commented Apr 28, 2024

marcphilipp commented Apr 28, 2024 •

edited

sormuras commented Apr 29, 2024

marcphilipp commented Apr 29, 2024

sormuras commented Apr 29, 2024

MalformedParametersException on JDK 8 for synthetic bridge methods in Jupiter classes (5.11.0-M1) #3797

MalformedParametersException on JDK 8 for synthetic bridge methods in Jupiter classes (5.11.0-M1) #3797

Comments

kaipe commented Apr 26, 2024 • edited by sbrannen

Steps to reproduce

Context

marcphilipp commented Apr 28, 2024

marcphilipp commented Apr 28, 2024 • edited

Diff

sormuras commented Apr 29, 2024

marcphilipp commented Apr 29, 2024

sormuras commented Apr 29, 2024

`MalformedParametersException` on JDK 8 for synthetic bridge methods in Jupiter classes (5.11.0-M1) #3797

`MalformedParametersException` on JDK 8 for synthetic bridge methods in Jupiter classes (5.11.0-M1) #3797

kaipe commented Apr 26, 2024 •

edited by sbrannen

marcphilipp commented Apr 28, 2024 •

edited