Month: August 2020

Will human transplants change biometrics?

https://sg.style.yahoo.com/transplant-patients-dna-is-replaced-with-that-of-his-donor-124035642.html

9 December 2019

A transplant patient developed the DNA of his donor, it has emerged.

Chris Long, from Reno in Nevada, had a blood test three months after receiving a bone marrow transplant.

Results revealed his DNA had been “replaced” by that of his donor, a German man 10 years his junior.

Four years later, the donor’s genetic material was found in Mr Long’s cheeks, lips and semen. While levels fluctuated over time, only his chest and head hair were unaffected.

HTTPS and Geolocation with web browsers

I’ve starting coding apps to get a javascript geolocation refresher. Switching between OSX and W10 was quite a pain because:

  1. Safari does not support geolocation over HTTP (no idea why http://localhost/ is considered an issue with Safari).
  2. W10 Edge supports geolocation over HTTP.

After some experimenting, I discovered Chrome and Brave both support geolocation over HTTP on OSX. Chrome definitely was doing WiFi triangulation because it could return my exact lat/lng whereas Brave was returning the midtown lat/lng coordinates.

Problems starting Eclipse after updating JDK on OSX

I came across this problem when updating jdk via brew. Somehow brew removed openjdk-12 and replaced it with 14. Pesky.

After some checks, I figured the Eclipse 2020-06 executable was relying on a hardcoded openjdk path.

To rectify this, I’ve done the following:

  1. Determine the jvm available on osx by dropping to command line and running ‘/usr/libexec/jvm_home -V’

Below is a screen capture of the available openjdks on my OSX. (openjdk-12 was removed somehow). Remember the location of the openjdk directory you wish to use.

2. Edit the openjdk path in eclipse.ini. The path to eclipse.ini is as follows:

Note: I have mine in $HOME/eclipse/java-2020-06. Yours could be in the Applications directory (ie /Applications/Eclipse)

Run ‘nano eclipse’

3. To get this:

eclipse.ini pointing to missing openjdk-12 folder

4. Amend the folder name to the openjdk directory that you’ve determined in Step 1.

I’ve selected openjdk-14.0.2.jdk

5. Ready to start Eclipse by running the eclipse executable.