I am refactoring part of an Spring Boot 2.3.1 application, in which previous developers have used Integer type (with values 0 or 1) instead of boolean a bit everywhere in the code. But I am noticing something I didn’t expect : I’ve also changed the field type in the entity class, and when loading it from the DB, I get
Why default maven uses such old versions of plugins?
I am new to Maven, and struggling to find out how does maven decide what version of a plugin (e.g. maven-compiler) to use when no version is defined in pom.xml. Using latest maven version 3.8.1. Created a hello-world java program and ran mvn compile. And it downloads following versions: maven-resources-plugin:2.6:resources (default-resources) maven-compiler-plugin:3.1:compile (default-compile) maven-compiler-plugin:3.1 was released in April 2013. Latest
OptaPlanner Multithreading: Can I retrieve internally resolved “moveThreadCount” for reproducibility?
OptaPlanner v8.0.0.Final I want to set my OptaPlanner engine configs’ moveThreadCounts to AUTO, but I need to be able to reproduce runs even if it means I must take the moveThreadCount value from the logs/stdout/whatever (that is the plan). I see the value is resolved in DefaultSolverFactory::buildSolver line 82: This value is then saved to a HeuristicConfigPolicy on line 90
Expose Map from guice private Module
I am trying to expose a map from private module similar to Expose Map in private guice module but getting an error Could not expose() java.util.Map annotated with @com.google.inject.name.Named(value=myMap), it must be explicitly bound. I have written this code: Also in another class where I am injecting it, it gives: No implementation for java.util.Map<java.lang.String, java.lang.String> was bound. Please check. thanks
Java Decrypt with NodeJS Encrypt padding and oaepHash
I need to decrypt some information coming from an external service built with NodeJS. This service ask for a RSA (2048) public key in pem format in base64, in order to encrypt the information. I am creating the key pair in Java: The external service is encrypting the information as follows and is returning the bytes: I am trying to
Upload files to Microsoft Teams using API
I have an access token for Microsoft Graph. I have to upload file to the channels file tab. Can anyone help which endpoints I need to use for upload file to file tab I am calling below API: PUT: https://graph.microsoft.com/v1.0/groups/xxxxxxxx-xxxx-xxxx-xxxx-c8550c107aad/drive/items//sites/leafletcorp.com/Shared%20Documents/Development:/abc.docx:/content?@name.conflictBehavior=rename I am getting below response: { “error”: { “code”: “BadRequest”, “message”: “Entity only allows writes with a JSON Content-Type header.”,
Use public key fingerprint in Java Spring Boot application to solve “The authenticity of host ‘xxxx’ can’t be established”
I have a Java Spring Boot application which is using the spring-integration-sftp dependency to connect to an SFTP server. I get an error The authenticity of host ‘xxxx’ can’t be established and I know this can easily be rid of by setting the sftpSessionFactory.setAllowUnknownKeys(true), but that is not a good practice and I would rather not do that. I have
creating a java lottery program that allows the user to select the number of players
I am creating a lottery program that uses a set to store the numbers. The user inputs their number, and it’s stored in a set, then the computer generates some random number, and this is stored in a different set also. The 2 sets are then compared, and the intersect is taken out. The user can select the number of
@PropertySource fails to autowire required class (Spring Boot 2.3.8.RELEASE)
I have the following class I plan on using to autowire an instance of a Spring class named AADAppRoleStatelessAuthenticationFilter: Although the default-integration.yml file is well placed under /resources (no ‘FileNotFoundException’ is thrown), it seems like during the application start-up, Spring, for whatever reason, is not able to read it’s content (or disregards it while trying to initialize aadAppRoleStatelessAuthenticationFilter). It throws
Converting POJO into map
I have a Java class having 10 attributes, I want to convert this into 3 maps(Breaking it into 5,3,2 fields resepectively). I did some research and found that Jackson’s ObjectMapper can be used by doing something like this: This will be creating a single map for all the attributes in my POJO. What I want is have this POJO converted