Android Question Compile error when adding JDBC driver

[NamDongKyun]

Adding a JDBC driver in a new project with no work will result in an error.
Some drivers do not fail.
However, the database we are currently working on is Mariadb.
I want to know why only the JDBC driver for a specific DB is causing an error.
The B4A version used is 9.30.
I installed all the recommended items in the SDK Manager.

Below are the tested drivers.
'---------------------------------------------
'Compile Fail
'#AdditionalJar: mariadb-java-client-2.2.1 ~ 2.4.2
'#AdditionalJar: postgresql-42.2.5

'Compile Success
'#AdditionalJar: mariadb-java-client-2.0.1
'#AdditionalJar: postgresql-42.2.5.jre7
'#AdditionalJar: postgresql-42.2.5.jre6
'#AdditionalJar: mysql-connector-java-5.1.47-bin
'#AdditionalJar: jaybird-full-3.0.6
'#AdditionalJar: jaybird-3.0.6
'---------------------------------------------

Below is a Compile error message.
'---------------------------------------------
B4A Version: 9.30
Java Version: 11
Parsing code. (0.00s)
Building folders structure. (0.02s)
Compiling code. (0.01s)
Compiling layouts code. (0.00s)
Organizing libraries. (0.00s)
(AndroidX SDK)
Generating R file. (0.08s)
Compiling debugger engine code. (1.03s)
Compiling generated Java code. (1.14s)
Convert byte code - optimized dex. Error <<<--------------------------------------
Uncaught translation error: com.android.dx.cf.code.SimException: invalid opcode ba (invokedynamic requires --min-sdk-version >= 26)
..........
..........
Uncaught translation error: com.android.dx.cf.code.SimException: invalid opcode ba (invokedynamic requires --min-sdk-version >= 26)
UNEXPECTED TOP-LEVEL EXCEPTION:
java.lang.RuntimeException: Translation has been interrupted
at com.android.dx.command.dexer.Main.processAllFiles(Main.java:696)
at com.android.dx.command.dexer.Main.runMonoDex(Main.java:315)
at com.android.dx.command.dexer.Main.runDx(Main.java:293)
at com.android.dx.command.dexer.Main.main(Main.java:249)
at com.android.dx.command.Main.main(Main.java:94)
Caused by: java.lang.InterruptedException: Too many errors
at com.android.dx.command.dexer.Main.processAllFiles(Main.java:688)
... 4 more

 

[Erel]

I recommend you to use jRDC2. It will work better.

The error happens because one of the jars uses Java 8 features. In most cases you can fix it by "desugaring" it: https://www.b4x.com/android/forum/t...-invokedynamic-requires-error.107278/#content