Add qodana CI checks

[qodana-cloud]

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

[github-actions]

Qodana Community for JVM

526 new problems were found

Inspection name	Severity	Problems
Field may be 'final'	🔶 Warning	125
Nullability and data flow problems	🔶 Warning	72
Non-final field in 'enum'	🔶 Warning	33
Call to 'printStackTrace()'	🔶 Warning	33
Unstable API Usage	🔶 Warning	26
Unnecessary 'return' statement	🔶 Warning	21
Result of method call ignored	🔶 Warning	20
Unnecessary modifier	🔶 Warning	18
Unused assignment	🔶 Warning	15
'size() == 0' can be replaced with 'isEmpty()'	🔶 Warning	14
Javadoc declaration problems	🔶 Warning	7
Redundant character escape	🔶 Warning	7
Unused import	🔶 Warning	7
Constant values	🔶 Warning	6
Manual min/max calculation	🔶 Warning	6
Unnecessary 'continue' statement	🔶 Warning	6
Deprecated API usage	🔶 Warning	5
Field can be local variable	🔶 Warning	5
Integer multiplication or shift implicitly cast to 'long'	🔶 Warning	5
Static initializer references subclass	🔶 Warning	5
Redundant 'if' statement	🔶 Warning	5
Deprecated member is still used	🔶 Warning	4
String concatenation in loop	🔶 Warning	4
Concatenation with empty string	🔶 Warning	4
Unnecessary call to 'toString()'	🔶 Warning	4
Catch block may ignore exception	🔶 Warning	3
Simplifiable conditional expression	🔶 Warning	3
Unnecessary semicolon	🔶 Warning	3
Reflective access to non-existent or not visible class member	🔶 Warning	2
Malformed format string	🔶 Warning	2
Redundant 'Collection' operation	🔶 Warning	2
Replacement operation has no effect	🔶 Warning	2
String concatenation as argument to 'StringBuilder.append()' call	🔶 Warning	2
'String.equals()' can be replaced with 'String.isEmpty()'	🔶 Warning	2
'Collection.toArray()' call style	🔶 Warning	2
Call to 'Arrays.asList()' with too few arguments	🔶 Warning	1
C-style array declaration	🔶 Warning	1
Redundant 'Collection.addAll()' call	🔶 Warning	1
Suspicious 'Comparator.compare()' implementation	🔶 Warning	1
Statement with empty body	🔶 Warning	1
Excessive range check	🔶 Warning	1
'InputStream' and 'OutputStream' can be constructed using 'Files' methods	🔶 Warning	1
Early loop exit in 'if' condition	🔶 Warning	1
Magic constant	🔶 Warning	1
Manual array to collection copy	🔶 Warning	1
@NotNull/@Nullable problems	🔶 Warning	1
Pointless boolean expression	🔶 Warning	1
Redundant type cast	🔶 Warning	1
Redundant 'String' operation	🔶 Warning	1
Minimum 'switch' branches	🔶 Warning	1
Synchronization on local variable or method parameter	🔶 Warning	1
Unnecessary label on 'continue' statement	🔶 Warning	1
Redundant local variable	🔶 Warning	1
Wrapper type may be primitive	🔶 Warning	1
Duplicate branches in 'switch'	◽️ Notice	13
Commented out code	◽️ Notice	5
Non-strict inequality '>=' or '<=' can be replaced with '=='	◽️ Notice	3
Constant values	◽️ Notice	2
Multiple occurrences of the same expression	◽️ Notice	2
Function or property has platform type	◽️ Notice	1
Non-constant string concatenation as argument to logging call	◽️ Notice	1

☁️ View the detailed Qodana report

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