SEI CERT Oracle Coding Standard for Java

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Comment: Edited by sciSpider Java v3.0

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According to the Java Language Specification \[[JLS 05|AA. Java References#JLS 05]\], section 17.9 ""Sleep and Yield"":

It is important to note that neither Thread.sleep nor Thread.yield have any synchronization semantics. In particular, the compiler does not have to flush writes cached in registers out to shared memory before a call to Thread.sleep or Thread.yield, nor does the compiler have to reload values cached in registers after a call to Thread.sleep or Thread.yield.

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This noncompliant code example declares a non-volatile {{Boolean}} flag. ""The compiler is free to read the field {{this.done}} just once, and reuse the cached value in each execution of the loop. This would mean that the loop would never terminate, even if another thread changed the value of {{this.done}}."" \[[JLS 05|AA. Java References#JLS 05]\].

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Search for vulnerabilities resulting from the violation of this rule on the CERT website.

References

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\[[JLS 05|AA. Java References#JLS 05]\] section 17.9 ""Sleep and Yield""

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FIO36-J. Do not create multiple buffered wrappers on an InputStream            09. Input Output (FIO)            09. Input Output (FIO)