MySQL – Connectivity – Error – “Unable to load authentication plugin ‘caching_sha2_password’. “

Background Another error encountered while trying to connect to a MySQL instance. Error Error Text Unable to load authentication plugin 'caching_sha2_password'. Error Image Troubleshooting Outline Review Installation Configuration Options Options Authentication Method Use Strong Password Encryption for Authentication Our Choice Use Legacy Authentication Method Review Available MySQL Driver Versions Generic Review the versions of MySQL … Continue reading MySQL – Connectivity – Error – “Unable to load authentication plugin ‘caching_sha2_password’. “

MySQL – Connectivity – Error – “Public Key Retrieval is not allowed”

Background Trying to connect to a MySQL instance, but ran into an error. Error Error Text Public Key Retrieval is not allowed Error Image Remediation Outline General Set Attribute Set attribute AllowPublicKeyRetrieval to true DBeaver Window - Connect to Database Connection Settings Tab - "Driver Properties" Toggle Property "AllowPublicKeyRetrieval" Change from false to true Images … Continue reading MySQL – Connectivity – Error – “Public Key Retrieval is not allowed”

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

Mac OS/X – Sun/Oracle – Java Applet – Typical workspace interaction

Mac OS/X - Sun/Oracle - Java Applet - Typical workspace interaction Google Chrome So we are asked to confirm whether we want Java to run: Always run on this site Run this time We chose to have it "Run this time". We did not get very far.  We are greeted with a warning message stating … Continue reading Mac OS/X – Sun/Oracle – Java Applet – Typical workspace interaction

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