Message Title

org.hibernate.hql.internal.ast.QuerySyntaxException: unexpected AST node: = near line 1, column 2191 [select distinct generatedAlias0.id ...  and ( generatedAlias8.primary = true=true ) ...
        at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1679)
        at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1602)
        at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1608)
        at org.hibernate.jpa.spi.AbstractEntityManagerImpl.createQuery(AbstractEntityManagerImpl.java:551)
        at org.hibernate.jpa.criteria.CriteriaQueryImpl$1.buildCompiledQuery(CriteriaQueryImpl.java:316)
        at org.hibernate.jpa.criteria.compile.CriteriaCompiler.compile(CriteriaCompiler.java:130)
        at org.hibernate.jpa.spi.AbstractEntityManagerImpl.createQuery(AbstractEntityManagerImpl.java:699)
        at sun.reflect.GeneratedMethodAccessor322.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:298)
        at com.sun.proxy.$Proxy64.createQuery(Unknown Source)
        ... 24 more

I tried a few variants, like builder.equal(builder.literal(true), foobar.get(Foobar_.primary)) and builder.isFalse(builder.not(foobar.get(Foobar_.primary))) but those didn't fix it.

Changing the Java property name from primary to primaree doesn't help either (thought it might be a special keyword (the MySQL column name had already been changed long ago to isprimary)).

This problem originally occurred in 5.0.7, after which I tried upgrading to 5.1.8. I have not tried 5.2.x because it's incompatible with Spring 4.3.x's HibernateJpaDialect due to the change in return type of Session.getFlushMode() and so my app won't build.