I have a very basic Spring Security setup using Session. My problem is that I can’t find a way to use any kind of Session Listener (both Spring and Servlet API versions) to listen to SessionCreated event. Login is working and session is being created properly. The reason I need a listener is because I w…
Tag: java
Casting a string to an integer and then to a double – how to retrieve up to four positions behind the decimal position in a correct way?
I am currently working on a simple BMI (Body Mass Index) calculator in Java, in a larger Java / Spring Boot application with Mojito Tests. My function uses height and weight as Input values to calculate the BMI. Through the arithmetic operations, the received Input values – Strings, casted to Integers &…
Error while uploading to S3 from Hadoop using s3a
I am running a java application on kubernetes which upload multiple files from local container to s3 bucket using s3a, but I am getting the below exception in logs and files are not getting uploaded to s3. Partial files are getting uploaded to s3 Answer Looks like this is a bug. problems caused by AWS SDK cla…
I am getting null pointer exception in page object class why I am getting NPE
I am getting NPE in user() method in this line return driver.findElement(username); When I run testcase when I call lp.user() geeting NPE error in page object class java.lang.NullPointerException: Cannot invoke “org.openqa.selenium.WebDriver.findElement(org.openqa.selenium.By)” because “this…
Store date in AEST timezone in database
We have two tables in oracle db as below, TableA => Column DateA (type DATE) TableB => Column DateB (type DATE) DateA column in TableA has dates stored in UTC. DateB column in TableB has dates stored in AEST. When I checked the code (its in java) where the dates are being stored in these tables, both ar…
Jersey 1 @Inject migrated to Jersey 2 stopped working
I am doing a Jersey 1 to Jersey 2 migration of my system. In my code I had @Inject annotation from com.sun.jersey.spi.inject.Inject and @Singleton from com.sun.jersey.spi.resource.Singleton. I’ve changed these to javax.inject.Inject and javax.inject.Singleton. Since this change I am getting errors while…
Unexpected backlog size in Pulsar
I’m using Pulsar for communication between services and I’m experiencing flakiness in a quite simple test of producers and consumers. In JUnit 4 test, I spin up (my own wrappers around) a ZooKeeper server, a BookKeeper bookie, and a PulsarService; the configurations should be quite standard. The t…
How throws CustomException from reactive service to controller?
I am receiving a request in a 0.RestController and give it to the service for processing. If service doesnt throw exception, i just return HttpStatus.200, but if an exception occurs in the service, i need catch it in controller and return the status depending on the exception. Inside service, i need to use Mo…
nexus-staging-maven-plugin: maven deploy failed: An API incompatibility was encountered while executing
This worked fine for me be building under Java 8. Now under Java 17.01 I get this when I do mvn deploy. mvn install works fine. I tried 3.6.3 and 3.8.4 and updated (I think) all my plugins to the newest versions. Any ideas? POM: Answer Update: Version 1.6.13 has been released and should fix this issue! 🎉 This…
Compare Map Value with list using Stream API
Need to collect the common value from a List of String and from a MAP having String as KEY and List as VALUE. Snippet: In third method need to compare the List and MAP value and collect the common no in a List. Please guide using JAVA 8 Stream API Answer