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Tag: null

jpametamodel null SingularAttribute for String field

I have class entity: Usage jpametamodel: its correct work with Patient_.MRN. But I have runtime NullPointerException for field Patient_.firstName. jpametamodel generated with hibernate-jpamodelgen version 5.4.30.Final Answer generated class it’s work:

Checking null for multiple strings in Java

How can one check for whether one of the strings is not null, only if the rest contain something? Here is an example of how it works, but I feel like there should be a better way to do it. Is there a way to condense this logic into a better approach? EDIT If all strings are null, that’s fine.

Variables passes as null to another Java Frame in Netbeans

I am trying to take a value from MSSQL to a class. In my login GUI frame the variable passes exactly right, but when i pass that class object to another frame the name (String ograd) variable returns as null. Here’s the file: file where i take variables from my MSSQL database with Button click, which works fine.

Is there any other reason why NULL is not allowed in ArrayDeque besides “null is used as a special return value”? [closed]

Closed. This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 2 years ago. Improve this question Before you try to find duplicate question or downvotes, please let me explain 🙂 I think I read most of stackoverflow

How check if an Attribute(object) is null in Java

I need specific data for a report, then I gettin all information from a parent object Object1 It has many attributes, object attributes Object11, Object12, Object13, attr1, attr2… The attributes has many attributes too Object111, Object131, Object132,.. by now I got 5 level data attributes. When I send information to my report it says, Error: cause:null object1.getIdObject11().getIdObject111().getDescription; It trows error