ADDITIONAL SYSTEM INFORMATION :
Microsoft Windows [Version 10.0.17763.195]

openjdk version "11.0.1" 2018-10-16
OpenJDK Runtime Environment 18.9 (build 11.0.1+13)
OpenJDK 64-Bit Server VM 18.9 (build 11.0.1+13, mixed mode)

A DESCRIPTION OF THE PROBLEM :
JDK-8160181 added a lint warning for module name components that end with digits. According to https://bugs.eclipse.org/bugs/show_bug.cgi?id=530099#c1 this requirement is not present in the JLS, was mistakenly left over as a result of an abandoned proposal and should therefore be removed.

Please remove this lint check/warning.

REGRESSION : Last worked in version : NA

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile project with "-Xlint" (all warnings) enabled where module-info.java contains:

module jul.to2.slf4j
{
}

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
No warning
ACTUAL -
Warning emitted

FREQUENCY : always