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Tag: java

Stack overflow error for hibernate one-to-one mapping with Spring Data JPA

My problem is similar to this one https://discourse.hibernate.org/t/hibernate-throws-org-hibernate-id-identifiergenerationexception-attempted-to-assign-id-from-null-one-to-one-property/1777 but I am getting a different exception after applying the answer from this thread. My entities: Controller with corresponding Spring Data Repository: With this payload: I am getting an endless nested response with proper fields(distributor -> location -> distributor -> location ..), which ends with SO Error: I can’t fathom why does

Java put/putShort with JS

Can someone tell me the equivalent of java put and putShort in JavaScript ? Answer I think what you are looking for is first: create the array buffer: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer then use a data view to get and set into it: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView In dataview you can control the byte ordering (big/little endian) And here is an example, getting binary representation of

Combine two Stream into one Flux

How can I combine two streams Stream<String> into Flux? What I understand is that I might need to use Flux create method to create this but I am not really sure about it: Please help. Answer Concat the Streams into one and then invoke Flux#fromStream: Another way of doing this would be to create a Flux using Flux#fromStream and then

onCreateOptionsMenu not being called

onCreateOptionsMenu does not get called in a fragment. I have to manually call setHasOptionsMenu(true) in onCreatedView() but this causes the item.itemId be an empty String “” in the onOptionsItemSelected() and therefore i can’t detect which menu item was tapped. I’m currently using this in a fragment: Answer Call super.onCreateOptionsMenu(menu,inflater) after menu inflate This may more help Ref :: https://stackoverflow.com/a/15654039/11393354 try

Wildcard not allowed for Iterable in Java

I have following code setup. But this is not allowed as wildcard is not allowed for Iterable. What actually Java tries to a achieve here by not allowing this? What modifications would get this working? Answer When a class instance is created, it invokes the initializer of the super type. But you can’t use wildcards for instance creation, hence your

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