damccorm opened a new issue, #21111:
URL: https://github.com/apache/beam/issues/21111
Seems like Java ends up creating incorrect pipeline API proto segments when
"core-construction-java" is not available in the system.
For example, this may create a GBK transform without the URN.
This can be reproduced by running the wordcount example in [1] after
removing the following dependency from the pom.xml file.
<dependency\>
<groupId\>org.apache.beam</groupId\>
<artifactId\>beam-runners-core-construction-java</artifactId\>
<version\>${beam.version}</version\>
</dependency\>
Seems like this is because Java is unable to register corresponding
XYZTranslation classes (for example [2]).
I think we should fail here instead of generating default incorrect proto
segments.
[1]
[https://github.com/chamikaramj/multi-language-pipelines](https://github.com/chamikaramj/multi-language-pipelines)
[2]
[https://github.com/apache/beam/blob/master/runners/core-construction-java/src/main/java/org/apache/beam/runners/core/construction/GroupByKeyTranslation.java](https://github.com/apache/beam/blob/master/runners/core-construction-java/src/main/java/org/apache/beam/runners/core/construction/GroupByKeyTranslation.java)
Imported from Jira
[BEAM-12807](https://issues.apache.org/jira/browse/BEAM-12807). Original Jira
may contain additional context.
Reported by: chamikara.
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