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We’re looking for the following talents (Location: Lisbon)

Oportunidades de emprego (Novembro) – Apply

Releases and Deliverables

  • Release Manager (Web and Mobile)
  • Release Manager (IoT and AI)

Cloud Infrastructure

  • DevOps Engineer / Sys. Admin. (Cloud)


  • Head of QA
  • QA Tester (Functional and non-functional)
  • QA Automation Engineer
  • QA Cont. Integration and Cont. Deployment Engineer


See more/Apply


Eclipse Plug-in for RPM development

The Eclipse Specfile Editor Plug-in for RPM development

Main features:

To help developers manage .spec files (Eclipse GUI features in editing .spec files)

including outline/quick outline view in the editor,

auto-completion, highlighting, file hyper-links, and folding.

Generating, validating specfile, generating RPM.

Import SRC

.RPM to eclipse project.

The Specfile Editor Plug-in also integrates the rpmlint tool into the Eclipse interface.

Note: rpmlint is a command-line tool that helps developers detect common RPM package errors.

RPM plugin also supports the ability to create your own repository using the createrepo command.


Need rpmlint and createrepo packages installed in your linux machine.

How to install:

In the Eclipse IDE, using the Software Updates and Add-ons menu.

Java9 – new features

  • More Module System, e.g.  self-describing collection of code and data
    • Using jlink, to introduce a new optional phase, link time, which is in-between compile time and run time, during which a set of modules can be assembled and optimized into a custom runtime image
    • The modular JAR file with module-info.class file in its root directory.
    • Using jmod tool, the New JMOD format can be created. (new packaging format similar to JAR)
  • New version schema ($MAJOR.$MINOR.$SECURITY.$PATCH)
  • java shell: jshell
  • Compile for old java version (6 – java6)
    javac -source 6 -target 6 HelloWorld.java
  • More Diagnostic Commands: jcmd (jcmd pid help command)
  • Multi-Release JAR Files: Extends the JAR file format to enable multiple, Java release-specific versions of class files to coexist in a single archive
  • Removes the hprof, jhat from the JDK
  • More Security: DTLS, TLS,  disable X.509 certificate chains with SHA-1-based signatures,  PKCS12 keystores by default, SHA-3 cryptographic hash functions
  • The Garbage-First Garbage Collector (G1 GC) is the default garbage collector in JDK 9.
  • JavaDB, which was a rebranding of Apache Derby, isn’t included in JDK 9.
  • The launchers java-rmi.exe from Windows and java-rmi.cgi from Linux and Solaris have been removed.
  • In JDK 9, the Windows 32–bit client VM is not available. Only a server VM is offered.
  • Java VisualVM isn’t bundled with JDK 9.
  • The AppleScript engine is removed in JDK 9.

Windows Registry Key Changes

The Java 9 installer creates these Windows registry keys when installing the JRE:


The Java 8u152 installer creates these Windows registry keys when installing the JRE:

  • “HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment”
  • “HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment\1.8”
  • “HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment\1.8.0_152”

CentOS 7.4 is released

CentOS-7 (1708) – 7.4 is released

CentOS 7.4 (1708)

Some known issues:

  • ip6tables where the iptables service fails to start - apply the fix:  iptables-1.4.21-18.0.1.el7
  • The version of libgpod in EPEL repository is different in CentOS 7.4, workaround:
    yum downgrade libgpod.
  • Use VirtualBox 5.1.28 or later in CentOS 7.4. (old version is not fully compatible in CentOS 7.4
  • From RHEL/CentOS7.4, the size of the /boot partition changed to be minimum 1GB, because of significant increase of the initramfs.
  • Samba problem, apply the workaround: krb5-libs-1.15.1-8.el7
    Except in this case:
    Samba share with sssd authentication is broken. A workaround is to downgrade the samba packages to an earlier version.
  • At least 1024 MB RAM is required is for CentOS 7.4, Use at least 1344 MB RAM, for the installation of LiveGNOME/LiveKDE.
  • The screen resolution is 800×600 or superior.
  • Changed icon size if necessary with the workaround:
    gsettings set org.gnome.nautilus.icon-view default-zoom-level ‘small’

Upgrade problem:

  • For users of openldap-servers with ppolicy, before the upgrade, check this: https://bugs.centos.org/view.php?id=13750
  • For users need rdma, do this before upgrade: yum install rdma-core && yum update
  • Gnome is too dark colours, workaround: yum reinstall vte291

For VMs:

  • VMware Workstation/VMware ESXi (SCSI adapters: BusLogic and LsiLogic)
    The default kernel from CentOS 7 does not include the corresponding driver, e.g
    an unbootable system if you install on a SCSI disk using the defaults for CentOS
    workaround: Select “Red Hat Enterprise Linux” and “paravirtualized SCSI adapter”.
  • CentOS-7 as a Xen domU in ParaVirtualization (PV) mode, an upgrade to CentOS-7 (1708) will cause the VM to not be able to boot.
    workaround: Use HVM (full emulation) or PV-on-HVM mode