I am new to JAVA EE. I am trying to implement stateful session Bean via IntelliJ IDEA and glassfish server 4.0 while running the code getting below exception. Attaching the code and glassfish configuration as well. Error is coming as the lookup has been failed. Can anyone help regarding the lookup? Glassfish …
Check if Annotation is inherited
I have an annotation and three classes like this: Is there any way I can determine if a present annotation is inherited or declared directly at the class? Something like a method public boolean isInherited(Class<?> clazz, MyAnnotation annotation) that should only be called if the annotation is present. …
I’m getting classcastException , can anybody solve this? [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 8 months ago. Improve this question gett…
Extract .jar file with NodeJS
I need to extract a JAR file using NodeJS and I have no idea how, also I’m not sure if StackOverFlow is the right place for this so sorry if it’s not. Answer so jar files are just java archive files that can be unzipped with any commonly available operating system tool like unzip or jar, so a simp…
Is it possible to call the header value as a parameter for the method applied to the same object in simple interpreter, Spring DSL for Apache Camel?
Is it possible to call something like this in Apache Camel’s Spring DSL or like this For the second attempt it identifies .length() – 2 as a single method name call Answer You can increment and decrement with simple, so… I wouldn’t recommend, but for example:
Custom Data Binding in Spring
I have a situation here. Suppose, I’m receiving this JSON in the @RequestBody, Which I’m binding to a POJO, like so. Now, ResourceRefRequest, is as follows, and, RefReqItem, is as follows, Things are pretty well, as I expect them to be. The only problem is, refReqItem.resourceId is null, for all r…
i am getting a java.lang.NullPointerException while executing the testng script
while running the code i am getting this java.lang.NullPointerException in chrome, i have extended the main login class to another and its showing this exception. i have extended the same main class to another diff class and its successfully running but only this class is showing error. here is the code //log…
Vertx JDBCCLient insert BLOB into database
I used vertx 3.9.12 and JDBCCLient. How to insert image to BLOB column? Thank in advance Answer Unwrap the io.vertx.ext.sql.SQLConnection to java.sql.Connection and then create a Blob that you add to the params:
Using Knapsack approach without value?
Regarding to question, I am wondering that according to the following approach: Assume that there is no value and I am wondering that which approach or algorithm should be used for a Knapsack problem when the values are equal and there is a parameter (called n) that describes times for carrying items in a tim…
Global jackson ObjectMapper not registering custom serializer
I am using Java 17, spring-boot 2.6.3 with spring-webflux and spring-consul dependencies and I have the following class: Here’s my custom serializer. And my models are as simples as this: I can’t annotate my model class with @JsonSerialize(using = ModelSerializer.class) because it is in a dependen…