Banner printing doesn't respect set charset #39601
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mhalbritter
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Currently the printing of the banner in log mode (
spring.main.banner-mode="log") only works correctly (correctly = displays unicode characters the correct way, without surrogate glyphs)if
spring.banner.charsetmatchesfile.encoding.The banner is read using the encoding specified by
spring.banner.charset, before it is written in a local dependent way (dependent onfile.encoding) into theByteArrayOutputStream. After that it is re-read using theoriginal
spring.banner.charset. This leads to unwanted replacements.Proposed Solution -> Write banner into
ByteArrayOutputStreamusing the original encoding and not the local dependent encoding.Affected method:
createStringFromBanner(Banner banner, Environment environment, Class<?> mainApplicationClass)Local dependent writing by using
PrintStreamconstructor with single argument (no encoding specified)banner.printBanner(environment, mainApplicationClass, new PrintStream(baos));