Actual local run: 2026-11-06T15:12:07.4030081+08:00
Working directory: D:\zhuomian\qiuzhiwang_pro
COMMAND: java -version
java version "21.0.12" 2026-07-21 LTS
Java(TM) SE Runtime Environment (build 21.0.12+7-LTS-205)
Java HotSpot(TM) 64-Bit Server VM (build 21.0.12+7-LTS-205, mixed mode, sharing)

COMMAND: javac -version
javac 21.0.12

COMMAND: javac -encoding UTF-8 --release 21 -d docs/upgrade-100/checks/io-streams/classes examples/java-advanced/io-streams/IoStreamsDemo.java

EXIT: 0
COMMAND: java -cp docs/upgrade-100/checks/io-streams/classes IoStreamsDemo
per-chunk=[U+0041, U+FFFD, U+FFFD, U+FFFD, U+0042]
stream=[U+0041, U+4E2D, U+0042]
emoji char-units=2, code-points=1
before flush=0
after flush=5
close second
close first
primary=body
suppressed=[close second, close first]

EXIT: 0
COMMAND (EXPECTED FAILURE): java -cp docs/upgrade-100/checks/io-streams/classes IoStreamsDemo truncated
Exception in thread "main" java.nio.charset.MalformedInputException: Input length = 2
	at java.base/java.nio.charset.CoderResult.throwException(CoderResult.java:279)
	at java.base/sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:405)
	at java.base/sun.nio.cs.StreamDecoder.lockedRead(StreamDecoder.java:217)
	at java.base/sun.nio.cs.StreamDecoder.read(StreamDecoder.java:171)
	at java.base/java.io.InputStreamReader.read(InputStreamReader.java:188)
	at java.base/java.io.BufferedReader.fill(BufferedReader.java:160)
	at java.base/java.io.BufferedReader.read1(BufferedReader.java:225)
	at java.base/java.io.BufferedReader.implRead(BufferedReader.java:314)
	at java.base/java.io.BufferedReader.read(BufferedReader.java:296)
	at java.base/java.io.Reader.read(Reader.java:265)
	at IoStreamsDemo.readText(IoStreamsDemo.java:24)
	at IoStreamsDemo.main(IoStreamsDemo.java:48)

EXIT: 1 (expected nonzero: MalformedInputException)