I understand that this question has been asked many times in Stack Overflow and I have researched many of them, so please check this. My pom file: Both my maven.compiler.target and maven.compiler.source are set to 1.8 and i have java 1.8 running in my mac (M1). I am not sure why I am still getting the issue. …
Tag: java
How do I implement countdown in the GUI
I wrote a piece of code in Java about a countdown function in GUI, but I found that when I wanted to use timers and threads, time could not be refreshed in the GUI. Sleep () {I know this will be a function in the main thread, but later I ran it. It is not, and I don’t understand}. So
MDC value missing from log
My app is running on amazon SWF and I want to be able to see all the logs of a specific request using an slf4j MDC. For some code flows I see the MDC in the logs, but for some they are missing, for example: I have these 2 lines of code one after the other: I See the log,
Installation did not succeed in Android version 12 – API 31 and above
I tried to install my application in an Android version 12. I added the android:exported for each activity, receiver and filters. This error occurs The merged manifist displays these errors This is the test AndroidManifest.XML file that causes the errors These are the test dependencies I’m using The pro…
Jmeter Injector Heap size
We have a jmeter injector box which uses 32GB heap size for jmeter jvm. When running load tests we noticed a big dip in injecting load when GC activity happens. Anyone experienced this before? Which GC algorithm we can use here?? Answer Most probably you’re seeing so called Stop-The-World There are garb…
Method that fills the gap between an ArrayList in Java
I’m making a method called fillList. The method will require an arrayList in order to work and the output will be void. What the method is supposed to do is to fill the gaps between the numbers of the List. Example: Input: Output: The code I have so far is this: My idea was to add 1 to the value
InfluxDB 2 / influxdb-client-java: Long data is written but String value is read. ClassCastException occurred
InfluxDB v2.5.1 influxdb-client-java 6.7.0 Java POJO Write Read The reading statement throws InfluxException Answer First of all tag in influxdb always is string link Secondly when you get it from influx using influx-client it get it from influxdb as a String and cannot cast to Long. (because under hood java …
CDI – Unsatisfied dependencies using @Qualifer on classes that extend an abstract class and implement an interface
In Payara 5, Jakarta EE 8, I try to inject all the qualified beans and then select a specific one using a qualifier as shown right below: The abstract class which extends the interface along with an implementer: And the qualifier The result is unsatisfied dependencies error. The same code works on JavaEE 7 ap…
Using a predefined lambda as an argument in Java [closed]
Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 11 days ago. Improve this question So i’m trying to pass this test: I’m having a really hard time understanding how…
Spring security exception handling custom response
How is it possible to return a json instead a html? I got: i need something like this: My Adapter: The CustomAuthenticationEntryPoint Answer Pragmatically we can print/write to response[.getWriter()] within our entry point, like: BasicAuthenticationEntryPoint@github Then we can pass a test like: To make it wo…