First, thank you for this great software!
The problem: I cannot install DbSolo5 in Linux with latest java
In a (X)ubuntu 18.04 LTS system
pontikis@fs3650:~$ java -version
openjdk version "11.0.4" 2019-07-16
OpenJDK Runtime Environment (build 11.0.4+11-post-Ubuntu-1ubuntu218.04.3)
OpenJDK 64-Bit Server VM (build 11.0.4+11-post-Ubuntu-1ubuntu218.04.3, mixed mode, sharing)
DbSolo installation will not performed as install4j complains for JRE 1.8
Workaround:
Unpack somewhere (/data/apps in my case)
As root
cd /usr/bin
ln -s -f /data/apps/jre1.8.0_231/bin/java java
As user
cp ~/.install4j ~/.install4j.BAK
Change first two lines of .install4j as following
JRE_VERSION /usr 1 8 0 231
JRE_INFO /usr 0
Perform DbSolo5 installation!
Then, revert java version in your system (as root)
cd /usr/bin
ln -s -f /etc/alternatives/java java
You may also revert .install4j
Hope that helps!