snuyanzin commented on code in PR #19780:
URL: https://github.com/apache/flink/pull/19780#discussion_r988662523
##########
flink-core/src/test/java/org/apache/flink/api/java/typeutils/runtime/RowSerializerUpgradeTest.java:
##########
@@ -40,15 +38,9 @@
import static org.hamcrest.Matchers.is;
/** A {@link TypeSerializerUpgradeTestBase} for {@link RowSerializer}. */
-@RunWith(Parameterized.class)
public class RowSerializerUpgradeTest extends
TypeSerializerUpgradeTestBase<Row, Row> {
Review Comment:
Junit5 has issues with access if it is not public
```
java.lang.IllegalAccessError: tried to access class
org.apache.flink.api.java.typeutils.runtime.RowSerializerUpgradeTest from class
org.apache.flink.api.java.typeutils.runtime.RowSerializerUpgradeTest$RowSerializerVerifier$generated2$
at
org.apache.flink.api.java.typeutils.runtime.RowSerializerUpgradeTest$RowSerializerVerifier$generated2$.createUpgradedSerializer(RowSerializerUpgradeTest.java:108)
at
org.apache.flink.api.common.typeutils.TypeSerializerUpgradeTestBase$ClassLoaderSafeUpgradeVerifier.createUpgradedSerializer(TypeSerializerUpgradeTestBase.java:174)
at
org.apache.flink.api.common.typeutils.TypeSerializerUpgradeTestBase.upgradedSerializerIsValidAfterMigration(TypeSerializerUpgradeTestBase.java:345)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:725)
at
org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
at
org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)
at
org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:149)
at
org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:140)
...
```
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