Add qodana CI checks

[qodana-cloud]

Adds qodana.yaml and GitHub workflow file that runs Qodana static analysis on each pull request.

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[github-actions]

Qodana Community for JVM

1320 new problems were found

Inspection name	Severity	Problems
Lombok @Getter may be used	🔶 Warning	273
Nullability and data flow problems	🔶 Warning	199
Unchecked warning	🔶 Warning	121
Call to 'printStackTrace()'	🔶 Warning	119
Field may be 'final'	🔶 Warning	93
Constant values	🔶 Warning	48
Deprecated API usage	🔶 Warning	42
Result of method call ignored	🔶 Warning	38
Unused import	🔶 Warning	36
Unstable API Usage	🔶 Warning	36
Unnecessary unicode escape sequence	🔶 Warning	25
Redundant character escape	🔶 Warning	23
Lombok @Setter may be used	🔶 Warning	20
@NotNull/@Nullable problems	🔶 Warning	20
Unused assignment	🔶 Warning	18
'size() == 0' can be replaced with 'isEmpty()'	🔶 Warning	15
Catch block may ignore exception	🔶 Warning	13
Suspicious collection method call	🔶 Warning	12
Single character alternation	🔶 Warning	9
Stream API call chain can be simplified	🔶 Warning	9
Unnecessary semicolon	🔶 Warning	9
Call to 'Arrays.asList()' with too few arguments	🔶 Warning	8
AutoCloseable used without 'try'-with-resources	🔶 Warning	8
Optional call chain can be simplified	🔶 Warning	7
Suspicious 'Arrays' method call	🔶 Warning	7
'InputStream' and 'OutputStream' can be constructed using 'Files' methods	🔶 Warning	6
Unnecessary call to 'toString()'	🔶 Warning	6
Local variable used and declared in different 'switch' branches	🔶 Warning	5
Unnecessary 'return' statement	🔶 Warning	5
Condition is covered by further condition	🔶 Warning	4
Deprecated member is still used	🔶 Warning	4
Javadoc declaration problems	🔶 Warning	4
Null value for Optional type	🔶 Warning	4
Optional.get() is called without isPresent() check	🔶 Warning	4
Unnecessary 'null' check before method call	🔶 Warning	4
Unnecessary non-capturing group	🔶 Warning	4
'Throwable' not thrown	🔶 Warning	4
Redundant local variable	🔶 Warning	3
Link specified as plain text	🔶 Warning	2
Mismatched query and update of collection	🔶 Warning	2
Redundant type cast	🔶 Warning	2
String concatenation in loop	🔶 Warning	2
'String.equals()' can be replaced with 'String.isEmpty()'	🔶 Warning	2
Suspicious 'InvocationHandler' implementation	🔶 Warning	2
Unnecessary conversion to 'String'	🔶 Warning	2
Duplicate throws	🔶 Warning	1
Integer division in floating-point context	🔶 Warning	1
Non functional style 'Optional.isPresent()' usage	🔶 Warning	1
Redundant 'Collection' operation	🔶 Warning	1
Method is identical to its super method	🔶 Warning	1
'Collection.toArray()' call style	🔶 Warning	1
Concatenation with empty string	🔶 Warning	1
Method can be extracted	◽️ Notice	14
Constant values	◽️ Notice	7
Multiple occurrences of the same expression	◽️ Notice	6
Commented out code	◽️ Notice	2
Non-strict inequality '>=' or '<=' can be replaced with '=='	◽️ Notice	2
Regular expression can be simplified	◽️ Notice	2
Nullability and data flow problems	◽️ Notice	1

☁️ View the detailed Qodana report

Contact Qodana team

Contact us at [email protected]

• Or via our issue tracker: https://jb.gg/qodana-issue
• Or share your feedback: https://jb.gg/qodana-discussions