Github user PascalSchumacher commented on the issue:
https://github.com/apache/commons-lang/pull/329
When using Java 11 the following test failures occur:
```
[ERROR] Failures:
[ERROR]
FastDateFormat_ParserTest>FastDateParserTest.testLocales_LongNoEra_AD:303->FastDateParserTest.testLocales:341
Locale zh_TW failed with /////ss// era AD
java.text.ParseException: Unparseable date:
2003/äºæ/0010/0012//00/ä¸å/ææä¸
[ERROR]
FastDateFormat_ParserTest>FastDateParserTest.testLocales_LongNoEra_BC:308->FastDateParserTest.testLocales:341
Locale zh_TW failed with /////ss// era BC
java.text.ParseException: Unparseable date:
2003/äºæ/0010/0012//00/ä¸å/ææå
[ERROR]
FastDateFormat_ParserTest>FastDateParserTest.testLocales_Long_AD:283->FastDateParserTest.testLocales:341
Locale zh_TW failed with //////ss// era AD
java.text.ParseException: Unparseable date: 西å
/2003/äºæ/0010/0012//00/ä¸å/ææä¸
[ERROR]
FastDateFormat_ParserTest>FastDateParserTest.testLocales_Long_BC:288->FastDateParserTest.testLocales:341
Locale zh_TW failed with //////ss// era BC
java.text.ParseException: Unparseable date: 西å
å/2003/äºæ/0010/0012//00/ä¸å/ææå
[ERROR] FastDateFormat_ParserTest>FastDateParserTest.testTzParses:275
tz:America/New_York locale:Norwegian Nynorsk expected: but was:
[ERROR] FastDateParserTest.testLocales_LongNoEra_AD:303->testLocales:341
Locale zh_TW failed with /////ss// era AD
java.text.ParseException: Unparseable date:
2003/äºæ/0010/0012//00/ä¸å/ææä¸
[ERROR] FastDateParserTest.testLocales_LongNoEra_BC:308->testLocales:341
Locale zh_TW failed with /////ss// era BC
java.text.ParseException: Unparseable date:
2003/äºæ/0010/0012//00/ä¸å/ææå
[ERROR] FastDateParserTest.testLocales_Long_AD:283->testLocales:341
Locale zh_TW failed with //////ss// era AD
java.text.ParseException: Unparseable date: 西å
/2003/äºæ/0010/0012//00/ä¸å/ææä¸
[ERROR] FastDateParserTest.testLocales_Long_BC:288->testLocales:341
Locale zh_TW failed with //////ss// era BC
java.text.ParseException: Unparseable date: 西å
å/2003/äºæ/0010/0012//00/ä¸å/ææå
[ERROR] FastDateParserTest.testTzParses:275 tz:America/New_York
locale:Norwegian Nynorsk expected: but was:
[ERROR] Errors:
[ERROR]
FastDateFormat_ParserTest>FastDateParserTest.testParses:251->FastDateParserTest.validateSdfFormatFdpParseEquality:227
» Parse
[ERROR]
FastDateParserTest.testParses:251->validateSdfFormatFdpParseEquality:227 »
Parse
```
---