vavr managed to do an incompatible change between 0.10.x and 1.0-alpha

[hgschmie]

compiling vavr with 0.9.3 (the default version) and running with 1.0.0-alpha-4 (after actually fixing our test pipeline):

INFO]
[INFO] Results:
[INFO]
[ERROR] Errors:
[ERROR]   TestVavrCollectorFactory.setUp:53 » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrCollectorFactory.setUp:53 » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrCollectorFactory.setUp:53 » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrCollectorFactoryWithDB.<init>:56 IncompatibleClassChange Method 'io.vavr.collection.List io.vavr.collection.List.range(int, int)' must be Methodref constant
[ERROR]   TestVavrCollectorFactoryWithDB.<init>:56 IncompatibleClassChange Method 'io.vavr.collection.List io.vavr.collection.List.range(int, int)' must be Methodref constant
[ERROR]   TestVavrCollectorFactoryWithDB.<init>:56 IncompatibleClassChange Method 'io.vavr.collection.List io.vavr.collection.List.range(int, int)' must be Methodref constant
[ERROR]   TestVavrCollectorFactoryWithDB.<init>:56 IncompatibleClassChange Method 'io.vavr.collection.List io.vavr.collection.List.range(int, int)' must be Methodref constant
[ERROR]   TestVavrCollectorFactoryWithDB.<init>:56 IncompatibleClassChange Method 'io.vavr.collection.List io.vavr.collection.List.range(int, int)' must be Methodref constant
[ERROR]   TestVavrMapCollectorWithDB.<init>:45 IncompatibleClassChange Method 'io.vavr.collection.List io.vavr.collection.List.range(int, int)' must be Methodref constant
[ERROR]   TestVavrMapCollectorWithDB.<init>:45 IncompatibleClassChange Method 'io.vavr.collection.List io.vavr.collection.List.range(int, int)' must be Methodref constant
[ERROR]   TestVavrMapCollectorWithDB.<init>:45 IncompatibleClassChange Method 'io.vavr.collection.List io.vavr.collection.List.range(int, int)' must be Methodref constant
[ERROR]   TestVavrMapCollectorWithDB.<init>:45 IncompatibleClassChange Method 'io.vavr.collection.List io.vavr.collection.List.range(int, int)' must be Methodref constant
[ERROR]   TestVavrMapCollectorWithDB.<init>:45 IncompatibleClassChange Method 'io.vavr.collection.List io.vavr.collection.List.range(int, int)' must be Methodref constant
[ERROR]   TestVavrMapCollectorWithDB.<init>:45 IncompatibleClassChange Method 'io.vavr.collection.List io.vavr.collection.List.range(int, int)' must be Methodref constant
[ERROR]   TestVavrOptionMapperWithDB.testOptionMappedShouldSucceed » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrOptionMapperWithDB.testOptionMappedWithinObjectIfPresentShouldContainValue » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrOptionMapperWithDB.testOptionMappedWithoutGenericParameterShouldFail » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrOptionMapperWithDB.testOptionMappedWithoutNestedMapperShouldFail » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrOptionMapperWithDB.testOptionWithinObjectIfMissingShouldBeNone » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrTupleMapperWithDB.<init>:37 IncompatibleClassChange Method 'io.vavr.collection.List io.vavr.collection.List.range(int, int)' must be Methodref constant
[ERROR]   TestVavrTupleMapperWithDB.<init>:37 IncompatibleClassChange Method 'io.vavr.collection.List io.vavr.collection.List.range(int, int)' must be Methodref constant
[ERROR]   TestVavrTupleMapperWithDB.<init>:37 IncompatibleClassChange Method 'io.vavr.collection.List io.vavr.collection.List.range(int, int)' must be Methodref constant
[ERROR]   TestVavrTupleMapperWithDB.<init>:37 IncompatibleClassChange Method 'io.vavr.collection.List io.vavr.collection.List.range(int, int)' must be Methodref constant
[ERROR]   TestVavrTupleMapperWithDB.<init>:37 IncompatibleClassChange Method 'io.vavr.collection.List io.vavr.collection.List.range(int, int)' must be Methodref constant
[ERROR]   TestVavrTupleMapperWithDB.<init>:37 IncompatibleClassChange Method 'io.vavr.collection.List io.vavr.collection.List.range(int, int)' must be Methodref constant
[ERROR]   TestVavrTupleRowMapperFactory.testBuildRowMapperForTuple1ShouldSucceed:77->testProjectionMapper:123 » IncompatibleClassChange Method 'io.vavr.control.Option io.vavr.control.Option.none()' must be Methodref constant
[ERROR]   TestVavrTupleRowMapperFactory.testBuildRowMapperForTuple2ShouldSucceed:82->testProjectionMapper:123 » IncompatibleClassChange Method 'io.vavr.control.Option io.vavr.control.Option.none()' must be Methodref constant
[ERROR]   TestVavrTupleRowMapperFactory.testBuildRowMapperForTuple3ShouldSucceed:88->testProjectionMapper:123 » IncompatibleClassChange Method 'io.vavr.control.Option io.vavr.control.Option.none()' must be Methodref constant
[ERROR]   TestVavrTupleRowMapperFactory.testBuildRowMapperForTuple4ShouldSucceed:94->testProjectionMapper:123 » IncompatibleClassChange Method 'io.vavr.control.Option io.vavr.control.Option.none()' must be Methodref constant
[ERROR]   TestVavrTupleRowMapperFactory.testBuildRowMapperForTuple5ShouldSucceed:100->testProjectionMapper:123 » IncompatibleClassChange Method 'io.vavr.control.Option io.vavr.control.Option.none()' must be Methodref constant
[ERROR]   TestVavrTupleRowMapperFactory.testBuildRowMapperForTuple6ShouldSucceed:106->testProjectionMapper:123 » IncompatibleClassChange Method 'io.vavr.control.Option io.vavr.control.Option.none()' must be Methodref constant
[ERROR]   TestVavrTupleRowMapperFactory.testBuildRowMapperForTuple7ShouldSucceed:112->testProjectionMapper:123 » IncompatibleClassChange Method 'io.vavr.control.Option io.vavr.control.Option.none()' must be Methodref constant
[ERROR]   TestVavrTupleRowMapperFactory.testBuildRowMapperForTuple8ShouldSucceed:118->testProjectionMapper:123 » IncompatibleClassChange Method 'io.vavr.control.Option io.vavr.control.Option.none()' must be Methodref constant
[ERROR]   TestVavrTupleRowMapperFactoryWithDB.testMapTuple1UsingRegisteredRowMapperShouldSucceed » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrTupleRowMapperFactoryWithDB.testMapTuple1WithNameOnlyUsingColumnMapperShouldSucceed » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrTupleRowMapperFactoryWithDB.testMapTuple2HavingOnlyOneRowMapperShouldFail » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrTupleRowMapperFactoryWithDB.testMapTuple2SelectedColumnsShouldSucceed » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrTupleRowMapperFactoryWithDB.testMapTuple2UsingRegisteredRowMappersShouldSucceed » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrTupleRowMapperFactoryWithDB.testMapTuple3WithAllSpecifiedColumnsShouldRespectConfiguration » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrTupleRowMapperFactoryWithDB.testMapTuple3WithExtraSpecifiedColumnShouldSucceed » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrTupleRowMapperFactoryWithDB.testMapTuple3WithOnlyOneSpecifiedColumnShouldFail » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrTupleRowMapperFactoryWithDB.testMapTuple3WithoutSpecifiedColumnShouldFail » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrTupleRowMapperFactoryWithDB.testMapTuple4AllColumnsShouldSucceed » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrValueArgumentFactory.testGetArgumentOfNoneShouldNotBeEmpty:56 IncompatibleClassChange Method 'io.vavr.control.Option io.vavr.control.Option.none()' must be Methodref constant
[ERROR]   TestVavrValueArgumentFactory.testGetFailedTryArgumentShouldNotBeEmpty:87 IncompatibleClassChange Method 'io.vavr.control.Try io.vavr.control.Try.failure(java.lang.Throwable)' must be Methodref constant
[ERROR]   TestVavrValueArgumentFactory.testGetInvalidValidationArgumentShouldNotBeEmpty:129 IncompatibleClassChange Method 'io.vavr.control.Validation io.vavr.control.Validation.invalid(java.lang.Object)' must be Methodref constant
[ERROR]   TestVavrValueArgumentFactory.testGetLeftEitherArgumentShouldNotBeEmpty:101 IncompatibleClassChange Method 'io.vavr.control.Either io.vavr.control.Either.left(java.lang.Object)' must be Methodref constant
[ERROR]   TestVavrValueArgumentFactory.testGetNonValueArgumentShouldNotBeEmpty:49 IncompatibleClassChange Method 'io.vavr.control.Option io.vavr.control.Option.of(java.lang.Object)' must be Methodref constant
[ERROR]   TestVavrValueArgumentFactory.testGetRightEitherArgumentInferredShouldNotBeEmpty:115 IncompatibleClassChange Method 'io.vavr.control.Either io.vavr.control.Either.right(java.lang.Object)' must be Methodref constant
[ERROR]   TestVavrValueArgumentFactory.testGetRightEitherArgumentShouldNotBeEmpty:108 IncompatibleClassChange Method 'io.vavr.control.Either io.vavr.control.Either.right(java.lang.Object)' must be Methodref constant
[ERROR]   TestVavrValueArgumentFactory.testGetSuccessTryArgumentShouldNotBeEmpty:94 IncompatibleClassChange Method 'io.vavr.control.Try io.vavr.control.Try.failure(java.lang.Throwable)' must be Methodref constant
[ERROR]   TestVavrValueArgumentFactory.testGetValidValidationArgumentShouldNotBeEmpty:122 IncompatibleClassChange Method 'io.vavr.control.Validation io.vavr.control.Validation.valid(java.lang.Object)' must be Methodref constant
[ERROR]   TestVavrValueArgumentFactoryWithDB.testGetEitherLeftShouldReturnAllRows » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrValueArgumentFactoryWithDB.testGetEitherRightShouldReturnCorrectRow » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrValueArgumentFactoryWithDB.testGetLazyShouldReturnCorrectRow » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrValueArgumentFactoryWithDB.testGetOptionEmptyShouldReturnAllRows » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrValueArgumentFactoryWithDB.testGetOptionShouldReturnCorrectRow » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrValueArgumentFactoryWithDB.testGetTryFailureShouldReturnAllRows » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrValueArgumentFactoryWithDB.testGetTrySuccessShouldReturnCorrectRow » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrValueArgumentFactoryWithDB.testGetValidationInvalidShouldReturnAllRows » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[ERROR]   TestVavrValueArgumentFactoryWithDB.testGetValidationValidShouldReturnCorrectRow » IncompatibleClassChange Inconsistent constant pool data in classfile for class io/vavr/control/Option. Method 'io.vavr.control.Option none()' at index 47 is CONSTANT_InterfaceMethodRef and should be CONSTANT_MethodRef
[INFO]
[ERROR] Tests run: 68, Failures: 0, Errors: 61, Skipped: 0

same when compiling with vavr 0.10.4 (last official release, from 2021).

options

• we keep as is, so users on 1.0.0 will not be able to use vavr support
• we compile with 1.0.0-alpha-4 and force existing users to upgrade their vavr dependency
• do nothing, as we have exactly zero bug reports so far.

Not sure how active the vavr project is. I am fine with leaving as is and adding a note to the docs.

[stevenschlansker]

I vote we upgrade to 1.0.0 when final comes out, there should be no reason to use experimental 0.x or alphas at that point.

[stevenschlansker]

@hgschmie , at this point the vavr project seems all but dead, the author has stepped away with no succession plan, and no 1.0 release yet. The website is totally down.

vavr-io/vavr#2756

If we do not see forward motion by the end of 2024, or some other arbitrary deadline, we should consider deprecating vavr support.