The unit tests BdfReaderImplTest#testReadUtf8String() and BdfWriterImplTest#testWriteUtf8String() fail on a Linux system with the following locale settings:

LANG=
LANGUAGE=
LC_CTYPE="POSIX"
LC_NUMERIC="POSIX"
LC_TIME="POSIX"
LC_COLLATE="POSIX"
LC_MONETARY="POSIX"
LC_MESSAGES="POSIX"
LC_PAPER="POSIX"
LC_NAME="POSIX"
LC_ADDRESS="POSIX"
LC_TELEPHONE="POSIX"
LC_MEASUREMENT="POSIX"
LC_IDENTIFICATION="POSIX"
LC_ALL=

Compilation also produces errors for these tests along with MetadataEncoderImplTest and MetadataParserImplTest, which may be related to the use of Unicode characters in source files. Example:

/home/tests/briar/briar-tests/src/org/briarproject/data/MetadataEncoderParserImplTest.java:76: error: unmappable character for encoding ASCII
		d.put("test", "abcdefghilkmnopqrst ?????????????????? \uFDD0\uFDD1\uFDD2\uFDD3");