How to upgrade Sonatype Nexus 2 to Nexus 3

Maven repository

In this article we focus to the OSS version of Nexus. For migrate a nexus version 2 to a nexus version 3 you need to know that the minimal source version of nexus need to be the 2.14.x So if your source Nexus 2 is previous to the 2.14 you need to upgrade that version before start the migration process. Upgrade Nexus 2 Upgrade nexus is very easy, follow these steps: [Read More]

Codility Equi Test Solution


A zero-indexed array A consisting of N integers is given. An equilibrium index of this array is any integer P such that 0 ≤ P < N and the sum of elements of lower indices is equal to the sum of elements of higher indices, i.e. A[0] + A[1] + … + A[P−1] = A[P+1] + … + A[N−2] + A[N−1]. Sum of zero elements is assumed to be equal to 0. [Read More]

Free Solution for check infected files with Java and ClamAv

Web Antivirus

Hello world!! The goal of this tutorial it’s to know how to check infected files with Java and ClamAv. About ClamAv ClamAv it’s a free, open source and cross-platform antivirus software tool-kit that allow to detect many types of malicious software. A very nice feature of ClamAv its the possibility of scan a stream for know if the stream its infected or not. So is not necessary to make mechanics procedures for saving the file and after check the file with an antivirus. [Read More]