Hello Flink community. I am new in Flink project and probably don't understand it a lot. Could you please clarify one question to me?
I download Flink sources and build it from scratch. I found checkstyle guidelines that every Flink developer should follow which is very useful. However, I didn't find anything about static analysis tools like Sonarcube. I have looked through mailing lists archive but without success. That seemed very strange to me. I have setup Sonarcube and run analysis on whole Flink project. After a while I have got 442 bugs, 511 vulnerabilities and more than 13K Code Smells issues. You can see them all here: https://sonarcloud.io/dashboard?id=org.apache.flink%3Aflink-parent I looked through some of bugs and vulnerabilities and there are many important ones (in my opinions) like these: - 'other' is dereferenced. A "NullPointerException" could be thrown; "other" is nullable here. - Either re-interrupt this method or rethrow the "InterruptedException". - Move this call to "wait()" into a synchronized block to be sure the monitor on "Object" is held. - Refactor this code so that the Iterator supports multiple traversal - Use try-with-resources or close this "JsonGenerator" in a "finally" clause. Use try-with-resources or close this "JsonGenerator" in a "finally" clause. - Cast one of the operands of this subtraction operation to a "long". - Make "ZERO_CALENDAR" an instance variable. - Add a "NoSuchElementException" for iteration beyond the end of the collection. - Replace the call to "Thread.sleep(...)" with a call to "wait(...)". - Call "Optional#isPresent()" before accessing the value. - Change this condition so that it does not always evaluate to "false". Expression is always false. - This class overrides "equals()" and should therefore also override "hashCode()". - "equals(Object obj)" should test argument type - Not enough arguments in LOG.debug function. Not enough arguments. - Remove this return statement from this finally block. - "notify" may not wake up the appropriate thread. - Remove the boxing to "Double". - Classes should not be compared by name - "buffers" is a method parameter, and should not be used for synchronization. Are there any plans to work on static analysis support for Flink project or it was intentionally agreed do not use static analysis as time consuming and worthless? Thank you in advance for you replies. Best Regards, --- Alex Arkhipov
