Can't open after install 3.8.0 Win 11 and Java 8

[epizarro2]

Describe the bug
After update ipscan to 3.8.0 setup, doesn't start

Java Virtual Machine Launcher

Error: A JNI error has occurred, please check your installation and try again

Rolling back to 3.7.6 and works

To Reproduce
Steps to reproduce the behavior:

1. Go to site, download, update
2. Click on ipscan shortcut
3. See error

Versions (please complete the following information):

• OS type and version
  Windows 11 Pro N 21H2 22000.434

• Java version, 32 or 64 bit, how was installed (java -version):
  java version "1.8.0_311"
  Java(TM) SE Runtime Environment (build 1.8.0_311-b11)
  Java HotSpot(TM) Client VM (build 25.311-b11, mixed mode)

• Version of Angry IP Scanner
  3.8.0

Logs:

• Please run Angry IP Scanner from command-line and see if any relevant logs were written. Paste them here.

Java Virtual Machine Launcher

Error: A JNI error has occurred, please check your installation and try again

Java Virtual Machine Launcher

A Java Exception has occurred.

[slaveniamh]

Seeing the same with W10Pro

[jimmisonr]

Seeing the same with W10Pro
Same here. Rolling back to 3.7.6 got me up and running again.

[slaveniamh]

A roll back got things running here too

[jerry-ne]

Hi guys, there is solution:
Last version to run under Java 8 is 3.7.6.
See details here.
So just update your JRE from v8 to 11.

[slaveniamh]

OK, that's it running, but it finds none of the 40ish systems on the LAN

[jerry-ne]

@slaveniamh : Yes, it is know bug, see opened #302
(Peronally I think it is about minor update JDK/Windows update, not ipscan. But it is only idea, I am not sure)
Give a chance to Liberica JDK and ipscan v3.8.0- it works :-)

[angryziber]

Yes, unfortunately, Java 8 is not supported anymore, due to changes in SWT, the UI toolkit.

Some questions:

• Which vendor of Java 8 do you use? Is it AdoptOpenJDK/Oracle/something else?
  • If it's 32-bit version, then there is a possibility to make it work
• What is the vendor of Java 11 that doesn't detect any hosts?

[epizarro2]

@angryziber

• Which vendor of Java 8 do you use? Is it AdoptOpenJDK/Oracle/something else?
  Oracle 32 Bits, V 8 311, Changed to Last Liberica JRE and testing my other java apps. Seems fine.

[slaveniamh]

Followed the link from the download page and got-
bellsoft-jre17.0.1+12-windows-amd64.msi

[MelchiorGaspar]

I am having the same issue...
unfortunately I deleted all my backups of v3.7.x when I grabbed v3.8.2 just now..
what is this open Java by is it safe? I have never heard of it before..
bell-sw.com

[angryziber]

@MelchiorGaspar please try the new Windows installer than includes a minimal JRE. You don't need to install a separate Java anymore that way.

BellSoft that releases Liberica is a consultancy company founded by former engineers from Oracle, they are one of distributors of OpenJDK after Oracle made their distribution not free.

[MelchiorGaspar]

thx for the info... @angryziber
I will give try Liberica out... and remove the std Java RTE..
I have 2 or 3 java programs I use.. including BiglyBT... I tried Java 11 oh years ago and BiglyBT/Azureus would not run...
but sry I am tangenting...
so I install v17 or v11?
and standard or full JRE?

[angryziber]

@MelchiorGaspar latest is usually better and for running apps you need Standard JRE (runtime environment), not JDK (which is for development). If older apps won't run, you can also keep several different versions of Java on your machine.

And again, the new recommended way of running Angry IP Scanner is to use the installer that comes with a specially built minimal JRE version 11 (currently).

[MelchiorGaspar]

I am good now. I installed the full jre for Liberica v17 and the other programs I use run with it ^_^