On Fri, 6 May 2022 20:03:35 GMT, Naoto Sato <na...@openjdk.org> wrote:
>> Ichiroh Takiguchi has updated the pull request incrementally with one >> additional commit since the last revision: >> >> 8285517: System.getenv() returns unexpected value if environment variable >> has non ASCII character > > src/java.base/share/classes/jdk/internal/util/StaticProperty.java line 77: > >> 75: SUN_JNU_ENCODING = getProperty(props, "sun.jnu.encoding"); >> 76: jnuCharset = Charset.forName(SUN_JNU_ENCODING, >> Charset.defaultCharset()); >> 77: } > > I am not sure it is OK to initialize `Charset` here, as `sun_jnu_encoding` is > initialized in `System.initPhase1()` and pulling `Charset` there may cause > some init order change. I'd only cache the encoding string here. Note the initialization of `sun.jnu.encoding` in System.java:2142'ish. This happens before StaticProperty is initialized; at line 2147. If the `sun.jnu.encoding` is not supported (this is before Providers are enabled) then it is forced to `UTF-8`. So it is the case that the encoding is supported by that point. Note that `Charset.isSupported(...)` does the full lookup in its implementation. If it is not supported, the system still comes up using UTF-8 and a warning is printed at line 2282. Comparing the class initialization order may be a useful thing to cross check. ------------- PR: https://git.openjdk.java.net/jdk/pull/8378
