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smallbenji
2025-08-11 13:51:04 +02:00
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<!DOCTYPE suppressions PUBLIC
"-//Checkstyle//DTD SuppressionFilter Configuration 1.2//EN"
"https://checkstyle.org/dtds/suppressions_1_2.dtd">
<suppressions>
<!-- *********************************************************************** -->
<!-- STDLIB.JAR EXCEPTIONS -->
<!-- *********************************************************************** -->
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files="(Draw|StdDraw).java"/>
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files="(In|StdDraw|Draw|StdAudio).java"/>
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<suppress id="FloatType"
files="(StdDraw|Draw|StdIn|In|Out|StdOut|StdAudio).java"/>
<suppress id="BitwiseAnd"
files="(StdRandom|BinaryStdIn|BinaryStdOut|BinaryIn|BinaryOut|StdAudio|Picture|GrayscalePicture).java"/>
<suppress id="BitwiseOr"
files="(BinaryStdOut|BinaryStdIn|BinaryIn|BinaryOut).java"/>
<suppress id="InterfaceType"
files="(DrawListener).java"/>
<suppress id="Synchronized"
files="(StdDraw|Draw|StdAudio).java"/>
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<suppress files="APIChecker.java" checks="[a-zA-Z0-9]*"/>
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<suppress files="Keyboard.java" checks="IllegalImport|IllegalToken|StringLiteralCount|ModifiedControlVariable|MyIllegalType"/>
<!-- *********************************************************************** -->
<!-- ALGS4.JAR EXCEPTIONS -->
<!-- *********************************************************************** -->
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<suppress checks="MethodNameCheck"
files="(Gaussian|ErrorFunction).java"/>
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<!-- *********************************************************************** -->
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<suppress id="TypeParameter"
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<!-- COS 126 PROGRAMMING ASSIGNMENT/PRECEPT EXCEPTIONS -->
<!-- *********************************************************************** -->
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<!-- throw RuntimeException is ok in RingBuffer because we've just introduced exceptions -->
<suppress checks="IllegalThrows"
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<!-- x0 = x1 = StdDraw.mouseX() in RangeSearchVisualizer -->
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<suppress id="Wrapper"
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<!-- students need to use Integer to check for null entry in Iterable -->
<suppress id="Wrapper"
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<!-- *********************************************************************** -->
<!-- IGNORE HEADER CHECKS EXCEPT ON CERTAIN FILES -->
<!-- *********************************************************************** -->
<!-- suppress header check except on COS 126 and COS 226 required files -->
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<!-- Filter file format: http://spotbugs.readthedocs.io/en/latest/filter.html -->
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<!-- But ignore these:
* comparator should be serializable
* something else dealing with serialization
* format string should use %n instead of /n
* inner class should be static (awkard, but possible with generics)
* using entrySet() is more efficient than keySet(), but it is awkward
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<Confidence value="3" />
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<!-- Ignore SCRV_SUSPICIOUS_COMPARATOR_RETURN_VALUES for low-confidence warnings (3)
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<!-- STDLIB.JAR EXCEPTIONS -->
<!-- *********************************************************************** -->
<Match>
<Class name = "~.*(Std)?Draw" />
<BugPattern name="ST_WRITE_TO_STATIC_FROM_INSTANCE_METHOD, DE_MIGHT_IGNORE" />
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<Match>
<Class name = "~.*StdAudio" />
<BugPattern name="DM_EXIT" />
</Match>
<Match>
<Class name = "~.*In" />
<BugPattern name="DMI_HARDCODED_ABSOLUTE_FILENAME" />
</Match>
<Match>
<Class name = "~.*(In|StdIn)" />
<BugPattern name="LEST_LOST_EXCEPTION_STACK_TRACE" />
</Match>
<Match>
<Class name = "~.*(BinaryIn|BinaryOut|BinaryStdIn|BinaryStdOut)" />
<BugPattern name="FCCD_FIND_CLASS_CIRCULAR_DEPENDENCY" />
</Match>
<Match>
<Class name = "~.*(BinaryOut|BinaryStdOut|Draw|Out|Picture|StdAudio|StdDraw)" />
<BugPattern name="IMC_IMMATURE_CLASS_PRINTSTACKTRACE" />
</Match>
<Match>
<Class name = "~.*(Draw|StdDraw)" />
<BugPattern name="MDM_THREAD_YIELD" />
</Match>
<!-- false positive -->
<Match>
<Class name = "~.*(StdRandom)" />
<Method name="poisson" params="double" returns="int" />
<BugPattern name="MRC_METHOD_RETURNS_CONSTANT" />
</Match>
<!-- *********************************************************************** -->
<!-- INTRO TO PROGRAMMING IN JAVA EXCEPTIONS -->
<!-- *********************************************************************** -->
<Match>
<Class name = "~.*Bug.*" />
</Match>
<Match>
<Class name = "Confusion" />
<BugPattern name="SA_LOCAL_SELF_ASSIGNMENT, DLS_OVERWRITTEN_INCREMENT" />
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<!-- Double.valueOf() not introduced, so better to use Double.parseDouble() -->
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<Class name = "Evaluate" />
<BugPattern name="NAB_NEEDLESS_BOXING_VALUEOF" />
</Match>
<Match>
<Class name = "PassByValue" />
<BugPattern name="IP_PARAMETER_IS_DEAD_BUT_OVERWRITTEN" />
</Match>
<Match>
<Class name = "ArrayExamples" />
<BugPattern name="DMI_INVOKING_TOSTRING_ON_ARRAY" />
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<Match>
<Class name = "PhoneNumber" />
<BugPattern name="SA_LOCAL_SELF_COMPARISON" />
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<Match>
<Class name = "HashCode" />
<BugPattern name="ES_COMPARING_STRINGS_WITH_EQ,DM_STRING_CTOR" />
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<Match>
<Class name = "~NoBaseCase|NoConvergence" />
<BugPattern name="IL_INFINITE_RECURSIVE_LOOP" />
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<Class name = "Gaussian" />
<BugPattern name="FE_FLOATING_POINT_EQUALITY" />
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<Class name = "~Coupon|CouponCollector|TwentyQuestions|Craps|Functions|
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<Match>
<Class name = "~RulerN|DigitReverser|Loops|LongestCommonSubsequence|
|ThueMorse|Ordinal|DeBruijn|Soundex|Repeat|
|Quote|CircularQuote" />
<BugPattern name="SBSC_USE_STRINGBUFFER_CONCATENATION" />
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<Match>
<Class name = "DoublingTest" />
<BugPattern name="DLS_DEAD_LOCAL_STORE" />
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<!-- ALGS4.JAR EXCEPTIONS -->
<!-- *********************************************************************** -->
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<Match>
<Class name = "~.*(BellmanFordSP|DijkstraSP|DynamicProgrammingSP|UniqueMincut|
|Hungarian|DijkstraUndirectedSP)" />
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<Match>
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<Match>
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<Match>
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<Match>
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<BugPattern name="HE_EQUALS_USE_HASHCODE, HE_EQUALS_NO_HASHCODE" />
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<Match>
<Class name = "BrokenShuffle" />
<BugPattern name="DM_NEXTINT_VIA_NEXTDOUBLE" />
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<Match>
<Class name = "~.*RabinKarp" />
<BugPattern name="UPM_UNCALLED_PRIVATE_METHOD" />
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<Match>
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<BugPattern name="EQ_SELF_USE_OBJECT" />
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<Match>
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<BugPattern name="DM_NUMBER_CTOR" />
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<Match>
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<BugPattern name="ITU_INAPPROPRIATE_TOSTRING_USE,OCP_OVERLY_CONCRETE_PARAMETER" />
</Match>
<Match>
<Class name = "~.*((Index)?(Binomial|Fibonacci)(Min|Max)PQ)" />
<BugPattern name="CFS_CONFUSING_FUNCTION_SEMANTICS" />
</Match>
<!-- *********************************************************************** -->
<!-- COS 126 PROGRAMMING ASSIGNMENT EXCEPTIONS -->
<!-- *********************************************************************** -->
<!-- n will always be non-negative -->
<Match>
<Class name = "~(Checkerboard)(126)?" />
<BugPattern name="IM_BAD_CHECK_FOR_ODD" />
</Match>
<!-- generating random integers before StdRandom.uniform() is introduced -->
<Match>
<Class name = "~(RollDice|TenDice|RandomWalker|RandomWalkers|Art|MusicalDiceGame|PerfectShuffle)(126)?" />
<BugPattern name="DM_NEXTINT_VIA_NEXTDOUBLE" />
</Match>
<!-- ok to return null in copy() if argument is null -->
<Match>
<Class name = "~(Transform2D)(126)?" />
<Method name="copy" params="double[]" returns="double[]" />
<BugPattern name="PZLA_PREFER_ZERO_LENGTH_ARRAYS" />
</Match>
<!-- GUI is side effect -->
<Match>
<Class name = "Keyboard" />
<BugPattern name="DLS_DEAD_LOCAL_STORE" />
</Match>
<!-- need to read m, width, and height for training images, but don't need to store -->
<Match>
<Class name = "ImageClassifier" />
<BugPattern name="DLS_DEAD_LOCAL_STORE" />
</Match>
<!-- false positive in LFSR with String instance variable -->
<Match>
<Class name = "~(LFSR)" />
<BugPattern name="STT_TOSTRING_STORED_IN_FIELD" />
</Match>
<!-- string concatenation before StringBuffer is introduced -->
<Match>
<Class name = "~(LFSR|MarkovModel|Perceptron|MultiPerceptron)(126)?" />
<BugPattern name="SBSC_USE_STRINGBUFFER_CONCATENATION" />
</Match>
<Match>
<Class name = "~(RingBuffer)(126)?" />
<Method name="toString" params="" returns="java.lang.String" />
<BugPattern name="SBSC_USE_STRINGBUFFER_CONCATENATION" />
</Match>
<!--
<Match>
<Class name = "~(MarkovModel)(126)?" />
<Method name="main" />
<BugPattern name="SBSC_USE_STRINGBUFFER_CONCATENATION" />
</Match>
-->
<!-- *********************************************************************** -->
<!-- COS 126 PROGRAMMING EXAM EXCEPTIONS -->
<!-- *********************************************************************** -->
<!-- string concatenation before StringBuffer is introduced -->
<Match>
<Class name = "~PokerHand|PokerHandWild|Language" />
<BugPattern name="SBSC_USE_STRINGBUFFER_CONCATENATION" />
</Match>
<!-- *********************************************************************** -->
<!-- COURSERA PROGRAMMING WITH A PURPOSE EXCEPTIONS -->
<!-- *********************************************************************** -->
<!-- generating random integers before StdRandom.uniform() is introduced -->
<Match>
<Class name = "~(RandomWalk|RandomWalkers|DiscreteDistribution|Minesweeper|Birthday)(126)?" />
<BugPattern name="DM_NEXTINT_VIA_NEXTDOUBLE" />
</Match>
<!-- *********************************************************************** -->
<!-- COS 226 / COURSERA PROGRAMMING ASSIGNMENT EXCEPTIONS -->
<!-- *********************************************************************** -->
<!-- Exclude compare() by slope order in Point.java on collinear assignment -->
<!-- It produces a warning even though it properly handles NaN -->
<Match>
<Class name = "~Point.*(226)?" />
<BugPattern name="CO_COMPARETO_INCORRECT_FLOATING" />
</Match>
<!-- Exclude compare() by slope order in Point.java on collinear assignment -->
<!-- It produces a warning even though it properly handles NaN -->
<Match>
<Class name = "~(LineSegment)(226)?" />
<BugPattern name="HE_HASHCODE_USE_OBJECT_EQUALS" />
</Match>
<!-- ok to call x.compareTo(x) when unit testing Term -->
<Match>
<Class name = "~(Term)(226)?" />
<Method name="main" />
<BugPattern name="SA_LOCAL_SELF_COMPARISON" />
</Match>
<!-- n will always be non-negative -->
<Match>
<Class name = "~(Board|KdTreeST|KdTree)(226)?" />
<BugPattern name="IM_BAD_CHECK_FOR_ODD" />
</Match>
<!-- ok to call board.equals(null), board.equals(string), or board.equals(board) when unit testing Board -->
<Match>
<Class name = "~(Board)(226)?" />
<Method name="main" />
<BugPattern name="EC_NULL_ARG,EC_UNRELATED_TYPES,SA_LOCAL_SELF_COMPARISON" />
</Match>
<!-- slider puzzle, before we've introduced hashCode() -->
<Match>
<Class name = "~(Board)(226)?" />
<BugPattern name="HE_EQUALS_USE_HASHCODE, HE_EQUALS_NO_HASHCODE" />
</Match>
<!-- BST style code for insert() -->
<Match>
<Class name = "~(KdTree|KdTreeST)(226)?" />
<BugPattern name="CFS_CONFUSING_FUNCTION_SEMANTICS" />
</Match>
<!-- SCUtility not very well designed, but it's our class -->
<Match>
<Class name = "~(SCUtility)" />
<BugPattern name="FCCD_FIND_CLASS_CIRCULAR_DEPENDENCY" />
</Match>
<!-- some false positives -->
<Match>
<Class name = "~(SeamCarver)" />
<BugPattern name="SLS_SUSPICIOUS_LOOP_SEARCH" />
</Match>
<!-- BoggleBoard doesn't implement hashCode() or equals() and does safe test for floating-point equality -->
<Match>
<Class name = "~(BoggleBoard)(226)?" />
<BugPattern name="FE_FLOATING_POINT_EQUALITY,HE_HASHCODE_USE_OBJECT_EQUALS" />
</Match>
<!-- *********************************************************************** -->
<!-- AUTOGRADER -->
<!-- *********************************************************************** -->
<!-- allow methods in *API to return null or false without complaints -->
<Match>
<Class name = "~.*API" />
<BugPattern name="PZLA_PREFER_ZERO_LENGTH_ARRAYS,
NP_TOSTRING_COULD_RETURN_NULL,
UP_UNUSED_PARAMETER,
MRC_METHOD_RETURNS_CONSTANT,
EQ_ALWAYS_FALSE" />
</Match>
<!-- allow methods to write to static instance variables ending in "count" -->
<!-- allow methods to store operation counts that are not currently used -->
<Match>
<Field name = "~.*[Cc]ount" />
<BugPattern name="ST_WRITE_TO_STATIC_FROM_INSTANCE_METHOD,
URF_UNREAD_FIELD" />
</Match>
<Match>
<Class name = "~.*TimingData" />
<BugPattern name="FCBL_FIELD_COULD_BE_LOCAL" />
</Match>
<!-- allow methods to store values in variables named "ignore.*" -->
<Match>
<Local name = "~.*[Ii]gnore.*" />
<BugPattern name="DLS_DEAD_LOCAL_STORE" />
</Match>
<Match>
<Class name = "~ScreenPrimitiveContainer.*" />
<BugPattern name="HE_EQUALS_USE_HASHCODE, HE_EQUALS_NO_HASHCODE" />
</Match>
<Match>
<Class name = "LineSegment" />
<BugPattern name="HE_EQUALS_USE_HASHCODE, HE_EQUALS_NO_HASHCODE" />
</Match>
<Match>
<Class name = "~Test.*" />
<Method name = "~extract.*" />
<BugPattern name="PZLA_PREFER_ZERO_LENGTH_ARRAYS" />
</Match>
<Match>
<Class name = "~(Test|Time).*" />
<BugPattern name="EXS_EXCEPTION_SOFTENING_RETURN_FALSE,
RCN_REDUNDANT_NULLCHECK_OF_NONNULL_VALUE" />
</Match>
<!-- *********************************************************************** -->
<!-- JAVA MATRIX PACKAGE -->
<!-- *********************************************************************** -->
<Match>
<Class name = "~Jama\..*" />
</Match>
</FindBugsFilter>

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