Curious why these failing tests didn't block submission.

For now rollback seems to be the simplest option. However is there a path
forward on Java 11, or is our model irretrievably broken on Java 11?

On Fri, Jul 21, 2023 at 8:57 AM Kenneth Knowles <k...@apache.org> wrote:

> This is a tricky situation that I don't know how to resolve best. Here are
> some pieces of information I know:
>
> 1. The reason we put certain generated classes in the same package is
> because of Java's package-private access restriction. If they are in
> another package the generated wrapper won't be able to invoke the needed
> functions. I know this applies to a generated DoFnInvoker. I don't know if
> it applies here.
>
> 2. The current status for Beam is that Beam itself is only
> expected/required to be able to build with Java 8 and/or produce Java 8
> compatible bytecode, but users should be able to use it with their own Java
> 11 or Java 17 code. This makes the testing scenario a bit tricky. We do
> have tests that model this scenario but they did not catch this I guess.
>
> On Mon, Jul 17, 2023 at 1:19 AM Damon Douglas <damondoug...@apache.org>
> wrote:
>
>> Good day, everyone,
>>
>> For clarity, I organize the following into situation, background,
>> assessment, and proposal.
>>
>> Best,
>>
>> Damon
>>
>> -----------------------------------------
>>
>> Situation
>>
>> Issue #26981 reports an IllegalArgumentException associated with the
>> ByteBuddy dependency throwing the message "<some class> must be defined in
>> the same package as <some other class>"[1]. I personally discovered this
>> error blocking my own Schema-related tests.
>>
>> Background
>>
>> *1. PR #25578 introduced the error*
>>
>> As Issue #26981 reports[1], the error seems to be introduced with 2.48.
>> Comparing v2.47.0 and v2.48.0[2] reveals that PR #25578 may have introduced
>> this breaking change[3]. Said PR replaced ByteBuddy's
>> ClassLoadingStrategy.Default.INJECTION[4] with getClassLoadingStrategy[5].
>>
>> *2. Reverting PR #25578 resolves the error*
>>
>> To test this hypothesis, I cloned 41e6628 and ran:
>>
>> ./gradlew :sdks:java:core:check
>>
>> revealing several failing tests (see *Failing :sdks:java:core:check at
>> 41e6628* below), some of which contained the
>> familiar IllegalArgumentException "<some class> must be defined in the same
>> package as <some other class>" message.
>>
>> After reverting changes found in #25578, the failing tests and the
>> IllegalArgumentException were resolved.
>>
>> *3. Code related to PR #25578 has a back and forth history*
>>
>> There seems to be a back and forth removal and replacement history[6]
>> between ByteBuddy's ClassLoadingStrategy.Default.INJECTION
>> and getClassLoadingStrategy most recently PR #25578. Said PR's motivation
>> is to prepare Beam for Java 17 compatibility, which explains the
>> re-introduction of the breaking changes.
>>
>> *4. PR #25578 GitHub Actions checks pass*
>>
>> Examining the GitHub actions run reveals that PR #25578 checks passed[7].
>> However, examining the setup[8] more closely reveals that Java tests are
>> executed using Java Version 8. The same is true in the latest 41e6628
>> commit[9].  To test whether the version of Java drives Issue #26981's
>> error, I submitted a draft PR[10] with the version of Java set to 11 and
>> found that the same errors resulted[11] as I found on my machine using the
>> same Java version.
>>
>> Assessment
>>
>> My main impression is that:
>>
>>    1. checks did not reveal PR #25578's breaking changes[7] because the
>>    environment[8] used Java 8 instead of 11
>>    2. the back and forth removal and addition of PR #25578's changes
>>    does not solve current and future Java version compatibilities
>>
>> Proposal
>>
>> May we consider:
>>
>>    1. If not already planned, set
>>    .github/actions/setup-self-hosted-action/action.yml's Java version[12] to
>>    11.
>>    2. arriving at a consensus regarding PR #25578's breaking changes and
>>    what we need to do today and in the future; I don't have anything 
>> practical
>>    to propose or recommend
>>
>> References
>>
>>    1. https://github.com/apache/beam/issues/26981
>>    2. https://github.com/apache/beam/compare/v2.47.0...v2.48.0
>>    3. https://github.com/apache/beam/pull/25578
>>    4.
>>    
>> https://javadoc.io/static/net.bytebuddy/byte-buddy/1.12.23/net/bytebuddy/dynamic/loading/ClassLoadingStrategy.Default.html#INJECTION
>>    5.
>>    
>> https://github.com/apache/beam/blob/68e19a596a5d0136ba4592be01888f487463c2f3/sdks/java/core/src/main/java/org/apache/beam/sdk/util/ByteBuddyUtils.java#L32
>>    6.
>>    
>> https://github.com/apache/beam/commits/68e19a596a5d0136ba4592be01888f487463c2f3/sdks/java/core/src/main/java/org/apache/beam/sdk/util/ByteBuddyUtils.java
>>    7.
>>    https://github.com/apache/beam/actions/runs/4759753495/jobs/8459342173
>>    8.
>>    
>> https://github.com/apache/beam/actions/runs/4759753495/jobs/8459342173#step:3:28
>>    9.
>>    
>> https://github.com/apache/beam/actions/runs/5558349809/jobs/10153336615#step:3:16
>>    10.
>>    
>> https://github.com/apache/beam/actions/runs/5571881403/jobs/10177348958?pr=27515#step:3:16
>>    11.
>>    
>> https://github.com/apache/beam/actions/runs/5571881403/jobs/10177348958?pr=27515#step:5:123
>>    12.
>>    
>> https://github.com/apache/beam/blob/561870be80cc8696a926d7322b0f47ddeddcc222/.github/actions/setup-self-hosted-action/action.yml#L56
>>
>>
>> Failing :sdks:java:core:check at 41e6628
>>
>> *Ran locally on*:
>>
>> openjdk 11.0.14.1 2022-02-08
>> OpenJDK Runtime Environment JBR-11.0.14.1.1-2043.11-jcef (build
>> 11.0.14.1+1-b2043.11)
>> OpenJDK 64-Bit Server VM JBR-11.0.14.1.1-2043.11-jcef (build
>> 11.0.14.1+1-b2043.11, mixed mode)
>>
>> org.apache.beam.sdk.schemas.AvroSchemaTest > testPojoRecordToRow FAILED
>>     java.lang.IllegalArgumentException at AvroSchemaTest.java:451
>>
>> org.apache.beam.sdk.schemas.AvroSchemaTest > testSpecificRecordToRow
>> FAILED
>>     java.lang.IllegalArgumentException at AvroSchemaTest.java:386
>>
>> org.apache.beam.sdk.schemas.JavaBeanSchemaTest > testMapFieldSetters
>> FAILED
>>     java.lang.IllegalArgumentException at JavaBeanSchemaTest.java:460
>>
>> org.apache.beam.sdk.schemas.JavaBeanSchemaTest >
>> testRecursiveArraySetters FAILED
>>     java.lang.IllegalArgumentException at JavaBeanSchemaTest.java:385
>>
>> org.apache.beam.sdk.schemas.JavaBeanSchemaTest > testMapFieldGetters
>> FAILED
>>     java.lang.IllegalArgumentException at JavaBeanSchemaTest.java:437
>>
>> org.apache.beam.sdk.schemas.JavaBeanSchemaTest >
>> testRecursiveArrayGetters FAILED
>>     java.lang.IllegalArgumentException at JavaBeanSchemaTest.java:369
>>
>> org.apache.beam.sdk.schemas.JavaFieldSchemaTest > testNestedArraysToRow
>> FAILED
>>     java.lang.IllegalArgumentException at JavaFieldSchemaTest.java:602
>>
>> org.apache.beam.sdk.schemas.JavaFieldSchemaTest > testEnumFieldToRow
>> FAILED
>>     java.lang.IllegalArgumentException at JavaFieldSchemaTest.java:658
>>
>> org.apache.beam.sdk.schemas.JavaFieldSchemaTest >
>> testRecursiveArraySetters FAILED
>>     java.lang.IllegalArgumentException at JavaFieldSchemaTest.java:411
>>
>> org.apache.beam.sdk.schemas.JavaFieldSchemaTest > testMapFieldGetters
>> FAILED
>>     java.lang.IllegalArgumentException at JavaFieldSchemaTest.java:463
>>
>> org.apache.beam.sdk.schemas.JavaFieldSchemaTest >
>> testRecursiveArrayGetters FAILED
>>     java.lang.IllegalArgumentException at JavaFieldSchemaTest.java:394
>>
>> org.apache.beam.sdk.schemas.JavaFieldSchemaTest > testNestedArraysFromRow
>> FAILED
>>     java.lang.IllegalArgumentException at JavaFieldSchemaTest.java:580
>>
>> org.apache.beam.sdk.schemas.utils.JsonUtilsTest >
>> testGetRowToJsonBytesFunction FAILED
>>     java.lang.IllegalArgumentException at JsonUtilsTest.java:92
>>
>> org.apache.beam.sdk.schemas.utils.JsonUtilsTest >
>> testGetJsonStringToRowFunction FAILED
>>     java.lang.IllegalArgumentException at JsonUtilsTest.java:92
>>
>> org.apache.beam.sdk.schemas.utils.JsonUtilsTest >
>> testGetRowToJsonStringsFunction FAILED
>>     java.lang.IllegalArgumentException at JsonUtilsTest.java:92
>>
>> org.apache.beam.sdk.schemas.utils.JsonUtilsTest >
>> testGetJsonBytesToRowFunction FAILED
>>     java.lang.IllegalArgumentException at JsonUtilsTest.java:92
>>
>

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