Maven testsuite doesn't pass on non-US environement

[regisd]

Steps

1. cd testsuite/testcases
2. ../../mvnw test -Dtestcases=java

Expected:
test passes

Actual:

Test failed, unexpected jflex output: Difference in line 7
expected :[Constructing NFA : 1,010 states in NFA]
but got  :[Constructing NFA : 1.010 states in NFA]
JFlex output: Reading "src/test/cases/java/java.flex"

Warning in file "src/test/cases/java/java.flex" (line 340):
".|\n" does not match all characters, because "." excludes all Unicode newline chars - use "[^]" instead
.|\n                             { throw new RuntimeException("Illegal character \""+yytext()+
^
Constructing NFA : 1.010 states in NFA
Converting NFA to DFA :
................................................................................................................................................................................................................................................................................................................................................................................................................................................................
454 states before minimization, 426 states in minimized DFA
Writing code to "src/test/cases/java/Java.java"

[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.207 s
[INFO] Finished at: 2020-05-12T21:57:52+02:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal de.jflex:jflex-testsuite-maven-plugin:1.9.0-SNAPSHOT:run-test-suite (default) on project jflex-testsuite-testcases: Failed to execute test suite: Test [src/test/cases/java/java.test] failed: Unexpected jflex output:
[ERROR] Difference in line 7
[ERROR] expected :[Constructing NFA : 1,010 states in NFA]
[ERROR] but got  :[Constructing NFA : 1.010 states in NFA]
[ERROR] -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal de.jflex:jflex-testsuite-maven-plugin:1.9.0-SNAPSHOT:run-test-suite (default) on project jflex-testsuite-testcases: Failed to execute test suite: Test [src/test/cases/java/java.test] failed

[regisd]

Observe the diff

Constructing NFA : 1,010 states in NFA
vs
Constructing NFA : 1.010 states in NFA

Hint if you still don't see it because it took me some time: Number format differs.

[lsf37]

Wow. That is unexpectedly annoying :-). Thanks for spotting that.