Log4j:- Using A Configuration File

Background In our first Log4J sample, we relied on the default configuration. Let us take another pebble step. For this iteration, we will use a very small configuration file. Lineage Java:- JDK – Installing Java JDK on MS-Windows Link HelloWorld In Java Link Log4J - Preparation Link HelloWorld In Log4J Link Application Class helloLog4j.java Configuration … Continue reading Log4j:- Using A Configuration File

HelloWorld in Log4j

Background As we flesh our understanding and requirements for Log4J, let us ride out a basic HelloWorld application that uses the Log4J library.   Lineage Java:- JDK – Installing Java JDK on MS-Windows Link HelloWorld In Java Link Log4J - Preparation Link Log4J - Library ( Jar ) and Configuration Files For our beginning Log4J … Continue reading HelloWorld in Log4j

Log4j – Preparation

Background Now that we have a couple of Java posts out of the way, let us prepare our machine for log4J. Lineage Java:- JDK – Installing Java JDK on MS-Windows Link HelloWorld In Java Link   Log4J Artifacts Link Images Tabulated Type Distribution Mirrors Link Binary Apache Log4j 2 binary (tar.gz) apache-log4j-2.17.1-bin.tar.gz Link Apache Log4j … Continue reading Log4j – Preparation

Java:- JDK – Installing Java JDK on MS Windows

Background It is time for yours truly to catch up on Log4J Security vulnerabilities. Java JDK Installation Sadly, actually very sad, I do not have Java JDK ( Java Development Kit ) installed on my new computer.   Artifacts Location Java's JDK is available at https://www.oracle.com/java/technologies/downloads/ ( Link ). As of today, 2021-December-31st, the currently … Continue reading Java:- JDK – Installing Java JDK on MS Windows

DBeaver – Database Connection Configuration – IBM – DB2 / UDB JDBC Driver

Background As always coming back to DBeaver. This time to connect to a UDB Instance running on Linux. BTW, UDB means Universal Database. UDB JDBC Driver Artifacts DB2 JDBC Driver Versions and Downloads The URL for DB2 JDBC Drivers is Link. Here is a current snapshot. v11.1 FP0 ( GA ) We chose the v11 … Continue reading DBeaver – Database Connection Configuration – IBM – DB2 / UDB JDBC Driver

Java – JNLP – Error – “Weak signature algorithm MD5withRSA”

Background Trying to access a Java Web Application, but running into an error. Error The following resource is signed with a weak signature algorithm MD5withRSA and is treated as unsigned Image Body Detail Textual Unsigned application requesting unrestricted access to system The following resource is signed with a weak signature algorithm MD5withRSA and is treated … Continue reading Java – JNLP – Error – “Weak signature algorithm MD5withRSA”

DBeaver – Database Connection Configuration – Oracle – Oracle JDBC Driver

Background Towards a couple of sample Oracle Database sample exercises that we have in mind wanted to make sure that our all purpose database client, DBeaver, is able to communicate with an Oracle Database.   Preparation Oracle Java Version Objective The version of JDBC Client that we need will be based on the version of … Continue reading DBeaver – Database Connection Configuration – Oracle – Oracle JDBC Driver

Technical: Mac OSX / Java Applet Support in Mozilla Firefox

Technical: Mac OSX / Java Applet Support in Mozilla Firefox Here I am trying to upload files to one of our vendors, but the upload icon is not appearing in Mozilla Firefox. I looked all over, but no plugin. I am thinking you 're killing me.  And, yes where did I look? Well in Add-On Manager; … Continue reading Technical: Mac OSX / Java Applet Support in Mozilla Firefox

Java – JStack

Java - JStack When reviewing \ debugging a Java Application, one can try to use "JStack". JStack principally displays the StackTrace for each thread in an application. Listed below are a few well-written coverages of this important tool. Fun with JStack Link How to take Thread Dumps from a JVM Demoted On:- 2020-October-22nd Link JStack … Continue reading Java – JStack