I’m trying to insert a serialized JSON into a Postgres JSONB column using jOOQ, but it’s failing because the serialized JSON has a \0 inside of it. Is there a way jOOQ will escape this automatically for us? This is the exception I’m getting: Answer Given the details provided in your bug repo…
Tag: java
Best practice for time dependent variables
I have a system that operates with real-time events. The user can interject custom events at a specified interval. The real-time engine uses java.time.Duration to time the events. The user is presented a menu via jsp that has a specification of the Duration in (whole) seconds. The event list is serialized as …
Orbit Simulator in Java returning odd values for velocity etc. despite correct math
I am using LibGDX to make an orbit simulator (elliptical as planets possess their own initial velocity) and I have the physics mapped out like so: The problem is that my planet wobbles around and doesn’t orbit at all. I fear my calculations in the code might be wrong as the physics are definitely double…
How to improve the Java Stream method?
I would like to improve the following Java Stream method and to understand better how does anyMatch in Stream work. In my example the get(blogContext.getBlogContextEnum().getTagName(), new String[0]) can have one or many tags. Will the anymatch iterate through each value that comes from the previous get? When…
How to parse this date/time in Java/Kotlin?
I have this NMEA timestamp: 120722202122 and I want to parse it. I tried Playground but I get an Exception: I don’t know what the Exception wants to tell me or what my pattern should look like. Answer I assume you’ve probably meant the day of the month d, not the day of the year D. In your pattern…
Multiple authentication servers for my OAuth 2 resource server
I have implemented a simple resource server with Spring Boot and Spring Oauth2 with Google as authentication server: How do I add a few more authentication servers like Github, Facebook, or Twitter? Right now I am able to generate id_token and access_token for Google authentication but I am not sure if Github…
How to set a object’s field using another objects field in thymeleaf
I’m trying to set boxes’ elements copied from medicineBox’s values like below. Can anyone help me in this. I need to post medicineOrder model to the controller I’m using two object here – medicine and medicineOrder ——————> Controller method …
Java – getCardBackgroundColor – color for CardView
Can you help me with my code? I am changing the color of the item based on the information from the database, and now I wanted to transfer the color to the CardView, but I don’t know what the notation should look like, because this code tells me that the Color.RED write is wrong. Will you help me? Answe…
Removing backslash and newline character within one column
I’m getting text string html along with backslash and newline character. I can easily remove html tags using .replaceAll(“<[^>]*>”,””) but still and new line character still exists. So, again i tried to replaceAll(“\r\n|\r|\n”,””) but removing en…
REST. Checking the type of incoming field
how can I check the field type of the incoming response to the REST request. For example, I receive an answer with the “pay” field:”1000″ I want to check that the incoming field, its value is of type int What verification methods are there? Answer You can use Rest Assured Say you have …