java 9 unnamed module reads package [X] from both … while debugging (with IntelliJ)

Tags: , , , ,


In my project I have a package that uses several 3rd party libraries. Let’s have a look at the dependency tree: [INFO] +- commons-logging:commons-logging:jar:1.2:compile [INFO] +- org.apache….

Tags: java junit5 maven

JUnit 5 does not execute method annotated with BeforeEach

Tags: , ,


JUnit 5 does not invoke my method in a test class that is annotated with the @BeforeEach annotation, where I initialize some fields of the test object that are needed in the tests. When trying to …

Implementing a resource read/write lock in Java

Tags: , , ,


I’m trying to implement a simple read/write lock for a resource accessed concurrently by multiple threads. The workers randomly try reading or writing to a shared object. When a read lock is set, …

Access the keycloak API from postman

Tags: , , ,


I have tried to access the keycloak API from the postman. but it is showing 400 bad request. I was calling api in the below format. http://{hostname}:8080/auth/realms/master/protocol/openid-connect/…

Java Fork/Join Pool : Is it right to assume that number of threads in fork join pool depends entirely on underlying number of CPU’s?

Tags: , ,


Can a developer tell fork/join pool to create certain number of threads? If yes then is it guaranteed that those many number of threads will be created by pool?

Tags: java pointers

this pointer escape in Java

Tags: ,


When reading , there’s an example saying that the following code snippet will lead to this pointer escape in the constructor method. But I’m not sure what exactly …

disable-infobars argument unable to hide the infobar with the message “Chrome is being controlled by automated test software” with ChromeDriver v2.36

Tags: , , , ,


I just updated ChromeDriver to newest version – 2.36. In previous versions I’ve set: ChromeOptions options = new ChromeOptions(); options.addArguments(“disable-infobars”); and the “Chrome …

How to send hyperlink in message body using javamail API in my app?

Tags: , ,


I need to send verification email to the user in my application and in that mail i want to send an url as a hyperlink, i am able to send email successfully but i am not getting how to send hyperlink …

Tags: android java

Cannot resolve symbol “FirebaseInstanceId”

Tags: ,


I am trying to use FirebaseInstanceId but keep getting the error “Cannot resolve symbol FirebaseInstanceId”. The modules gradle includes dependencies { compile ‘com.google.firebase:firebase-…

TimeCharacteristics & TimerService in Apache Flink

Tags: , ,


I’m currently working through this tutorial on Stream processing in Apache Flink and am a little confused on how the TimeCharacteristics of a StreamEnvironment effect the order of the data values in …