I have hazelcast deployed in c/s mode , where I started using UserNamePassword Credentials for authentication, so during the start of server and client, I used username1, password1 as my credentials. …
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I want to create and immediatly use a database function in a single sql call. As an example, the following works fine in PostgreSQL SQL Editor : But when i try to use it with JPA : I get the following error : How could i make this work ? Answer You’re trying to execute two queries at once. You
How could I select a range of characters up until a third / is present and select all if there is no third / using regular expression
I need to select a range within a string up until the third / is present. I currently have ^([^/]*/[^/]*/[^/]*/ but this will only work when there is more than 3 / in the string. Ideally I’d need to select all characters up until a third /, and select all if there is no third / If anyone can think
How do I avoid the white label error(404) on localhost:8080?
I have been looking around here and in other forums for hours and I still haven’t found what I am doing wrong. I have built a simple Spring-Boot application with MongoDB and I have no errors in the console when i run it but i keep getting the white label error no matter what I do. My main and controller
How to properly unwrap an optional in Java?
I am learning the basics of Java and I am exploring Optionals and abstract classes so I came across the following issue, I have this code I was expecting to see the prints on the console “It is a Dog” followed by 2 “It is not a Dog” Since I’m using the method .isPresent() on optionals, But I got 1
How to print first word from a file separeted by a tab line?
i am trying to read a file and print only the first number from each line . i have tried to use split, but it never return correct result , it just print entire contetn as below in the table. Any help …
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I’m trying to write a static util function that takes in a protobuf object and determine if it’s a default instance, something along the line of: Would like for it to be able to apply to a range of protobuf objects like Struct / Types / Messages, however getDefaultInstance() appears to only get defined in the child classes. I’m thinking
Java method for checking for duplicate values in an array outputs new line for each duplicate value [closed]
Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 2 years ago. Improve this question I’ve created a method in java that checks (and counts) for duplicate values in an array: Given the array {string1,
Invalid JDK version in profile ‘compile-java8-release-flag’: Unbounded range: [9, for project org.jboss:jboss-parent
We’re migrating a java application from JBoss EAP 6 to JBoss EAP 7.3. We updated the jboss BOM files to the Jakarta EE 8 version: org.jboss.bom<…
How to create a dictionary in java [closed]
Closed. This question needs debugging details. It is not currently accepting answers. Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question. Closed 2 years ago. Improve this question Can i get some help on creating a dictionary in java? I tried