[Suggestive]

What is exactly the difference between a Silent JDB and a simple JDB, I heard that a SJDB doesn't act for permission to execute java, while a simple JDB will.
Do SJDB's actually exist? They seem too good to be true.

[NoCodys]

java updated there software these dont work anymore unless the the user hasnt updated there java in 2 years

[Demoralise]

SJDB's only affect Java up to Update 22 I believe? And TJDB's (Normal JDB's) up to Update 55.

[QU⚡CKSILVER]

Guys, he is asking for differences between both...

Here it is:

Silent Java Drive By does not ask for any permissions as it was made to perform all the actions in its' code in a stealth way (Silently).
Simple Java Drive By is a typical jar code/file implemented into a site that does the same thing but not silently. It asks for the user's permission before continuing.

Java Drive By's only work on outdated java versions, as Oracle has patched it so it's no longer working since then.