Check for LOOKUPSWITCH or TABLESWITCH instructions (#2979)

* fix: check for LOOKUPSWITCH or TABLESWITCH instructions

When looking for a switch the instruction might be LOOKUPSWITCH or
TABLESWITCH. Look for Select which is the base class for both.
See #2782
See #2937

* fix: moved the change log to Unreleased

CHANGELOG.md

@@ -6,6 +6,8 @@ This is the changelog for SpotBugs. This follows [Keep a Changelog v1.0.0](http:
 Currently the versioning policy of this project follows [Semantic Versioning v2.0.0](http://semver.org/spec/v2.0.0.html).
 
 ## Unreleased - 2024-??-??
+### Fixed
+- Do not report BC_UNCONFIRMED_CAST for Java 21's type switches when the switch instruction is TABLESWITCH ([#2782](https://github.com/spotbugs/spotbugs/issues/2782))
 
 ## 4.8.5 - 2024-05-03
 ### Fixed

spotbugs/src/main/java/edu/umd/cs/findbugs/detect/FindBadCast2.java

@@ -25,7 +25,7 @@
 import org.apache.bcel.generic.LDC;
 import org.apache.bcel.generic.MethodGen;
 import org.apache.bcel.generic.ReferenceType;
-import org.apache.bcel.generic.LOOKUPSWITCH;
+import org.apache.bcel.generic.Select;
 import org.apache.bcel.generic.Type;
 import org.apache.bcel.generic.TypedInstruction;
 
@@ -211,8 +211,8 @@ private void analyzeMethod(ClassContext classContext, Method method) throws CFGB
             boolean wasMethodInvocationWasGeneric = methodInvocationWasGeneric;
             methodInvocationWasGeneric = false;
 
-            if (ins instanceof LOOKUPSWITCH) {
-                LOOKUPSWITCH switchInstruction = (LOOKUPSWITCH) ins;
+            if (ins instanceof Select) {
+                Select switchInstruction = (Select) ins;
                 int[] indices = switchInstruction.getIndices();
 
                 switchHandler.enterSwitch(ins.getOpcode(),