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Adam Gamboa G – Developer

Adam Gamboa G – Developer

Full Stack notes and tips for developers… Java, React, Kubernetes, Scala, and more…

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Docker cheat sheet

  • Cheat Sheet
  • Docker
August 7, 2022August 8, 2022 agamboa No comments

Very helpful article with a summary of the most common and useful docker commands. Grouped by categories to find what we need.

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PKCS 11 Provider across multiple Java versions

  • Java
July 29, 2022July 29, 2022 agamboa No comments

A cross version approach to create SunPKCS11 providers to interact with smart cards. Supports version Java 5 to Java 18 at this moment.

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Behavior of the Iterator size method in Scala

  • Scala
July 26, 2022July 26, 2022 agamboa No comments

The iterator is a useful structure to iterate over collections (List, Set, Map, Seq). But it you uses the method size, you might notice an strange behavior, the iterator seems to be empty.
Let’s understand why.

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JDBI and the Specification Pattern

  • Java
June 29, 2022June 27, 2022 agamboa No comments

JDBI is a library to access to relation data in Java, it doesn’t provide support for the Specification Pattern, but with some classes and code we can implement it and use it.

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How to enable Metric-Server in Docker-desktop

  • Kubernetes
June 24, 2022June 24, 2022 agamboa No comments

Docker desktop allow you to have a Kubernetes installation in your local machine, by default it provides most of the features required by a developer. […]

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How to get the current directory path of a JAR in Java

  • Java
June 20, 2022June 20, 2022 agamboa No comments

Let’s learn about different approaches and concerns when we want to find the current directory where a JAR file is running….

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Bash Scripting cheat sheet

  • Shell
May 27, 2022May 27, 2022 agamboa No comments

As a Full Stack Developer, sometimes I need to create bash scripts to automate some processes. This article contains a lot of useful commands for creating bash scripts.

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How to set environment variable in MacOS

  • Shell
May 26, 2022May 26, 2022 agamboa No comments

Environment variables (env-vars) are used to save system-wide value and those values can be accessed later by the system itself, the user, processes or applications. […]

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Spring Data JPA and the Specification Pattern

  • Java
April 20, 2022April 22, 2022 agamboa No comments

Spring Data JPA provides support to the Specification pattern that will help us to reduce the amount of methods in our repository improving the readability and maintainability of the code.

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Usage of Deprecated for removal

  • Java
March 24, 2022March 24, 2022 agamboa No comments

Java 9 added the attribute forRemoval to the @Deprecated annotation, the purpose is to let know the developer there is a real intention in the short coming future (next releases) to remove completely that code. Therefore, stop using it should be a high priority.

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  1. Maven Central Repository is moving to HTTPS and disablig HTTP access (19,395)
  2. Creating a Socket Client Pool in Java (7,993)
  3. Using JPA CriteriaQuery to build Paginated Queries (7,567)
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  5. Using jEnv to switch JDK versions (4,037)

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Recent Posts

  • Docker cheat sheet
  • PKCS 11 Provider across multiple Java versions
  • Behavior of the Iterator size method in Scala
  • JDBI and the Specification Pattern
  • How to enable Metric-Server in Docker-desktop