Zoltan Haindrich created HIVE-21975:
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Summary: Fix incremental compilation
Key: HIVE-21975
URL: https://issues.apache.org/jira/browse/HIVE-21975
Project: Hive
Issue Type: Bug
Reporter: Zoltan Haindrich
we have an incremental compilation issue around SA ; mostly because of "?
extends Serializable"
it could be reproduced with:
{code}
git clean -dfx
mvn install -pl ql -am -DskipTests
touch `find . -name Sema*A*java` `find . -name Task*Factory.java`
mvn install -pl ql -DskipTests
{code}
error is:
{code}
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-compiler-plugin:3.6.1:compile (default-compile)
on project hive-exec: Compilation failure: Compilation failure:
[ERROR]
/mnt/work/hwx/hive/master/ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java:[12573,60]
incompatible types: java.util.List<org.apache.hadoop.hive.ql.exec.Task<?
extends java.io.Serializable>> cannot be converted to
java.util.List<org.apache.hadoop.hive.ql.exec.Task<?>>
[ERROR]
/mnt/work/hwx/hive/master/ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java:[15187,49]
incompatible types: java.util.List<org.apache.hadoop.hive.ql.exec.Task<?>>
cannot be converted to java.util.List<org.apache.hadoop.hive.ql.exec.Task<?
extends java.io.Serializable>>
{code}
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