BigDecimalTest failed with Java 11

[amottier]

A BigDecimal created from 1AA23.456 value with lead to an exception with a null message in Java 8 but with a non null message in Java 11 (Character A is neither a decimal digit number, decimal point, nor "e" notation exponential mark.).

See: https://github.com/telosys-tools-bricks/telosys-tools-generator/blob/57cf78d/src/test/java/org/telosys/tools/generator/context/BigDecimalTest.java#L45

As the documentation mention "Java 8 (or +)" I was expecting to be able to build using Java 11.

Maybe the fix is to update the documentation.