HHH-19926 add a test showing issue fixed

[gavinking]

[Please describe here what your change is about]

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https://hibernate.atlassian.net/browse/HHH-19926

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[dreab8]

Hi @gavinking ,

I gave a quick look and this

assertEquals( 0,
		session.createQuery( "select e from EntityWithOneToOne e where e.other in (:list)" )
			.setParameter( "list", null )
			.list().size() );

where a e.other is an association fails with

java.lang.NullPointerException: Cannot invoke "Object.getClass()" because "value" is null

	at org.hibernate.type.descriptor.java.spi.EntityJavaType.isInstance(EntityJavaType.java:53)
	at org.hibernate.query.spi.AbstractCommonQueryContract.isInstance(AbstractCommonQueryContract.java:839)
	at org.hibernate.query.spi.AbstractCommonQueryContract.multipleBinding(AbstractCommonQueryContract.java:821)
	at org.hibernate.query.spi.AbstractCommonQueryContract.setParameter(AbstractCommonQueryContract.java:805)
	at org.hibernate.query.spi.AbstractSelectionQuery.setParameter(AbstractSelectionQuery.java:639)
	at org.hibernate.query.sqm.internal.SqmQueryImpl.setParameter(SqmQueryImpl.java:1049)
	at org.hibernate.query.sqm.internal.SqmQueryImpl.setParameter(SqmQueryImpl.java:109)
	at org.hibernate.orm.test.query.hql.FunctionTests.lambda$testIn$0(FunctionTests.java:2513)

If it's ok for you I can give a look into it?

[gavinking]

If it's ok for you I can give a look into it?

OK, yes please!