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org.eclipse.jdt.core.compiler.batch/src/org/eclipse/jdt/internal/compiler/codegen/CodeStream.java

@@ -7730,16 +7730,21 @@ private TypeBinding retrieveLocalType(int currentPC, int resolvedPosition) {
 			}
 		}
 	}
-	return null;
+	if (this.methodDeclaration.binding.declaringClass.isEnum() && this.methodDeclaration.binding.isConstructor()) {
+		return switch(resolvedPosition) {
+			case 0 -> this.methodDeclaration.binding.declaringClass;
+			case 1 -> this.classFile.referenceBinding.scope.getJavaLangString();
+			case 2 -> TypeBinding.INT;
+			default -> null;
+		};
+	}
+	return resolvedPosition != 0 || this.methodDeclaration.isStatic() ? null : this.methodDeclaration.binding.declaringClass;
 }
 private void pushTypeBinding(int resolvedPosition) {
 	if (!isSwitchStackTrackingActive())
 		return;
 	assert resolvedPosition < this.maxLocals;
 	TypeBinding type = retrieveLocalType(this.position, resolvedPosition);
-	if (type == null && resolvedPosition == 0 && !this.methodDeclaration.isStatic()) {
-		type = this.methodDeclaration.binding.declaringClass; // thisReference.resolvedType
-	}
 	assert type != null;
 	pushTypeBinding(type);
 }

org.eclipse.jdt.core.tests.compiler/src/org/eclipse/jdt/core/tests/compiler/regression/SwitchExpressionsYieldTest.java

@@ -6862,4 +6862,36 @@ public static void main(String[] args) {
 				},
 				"Entry = Hello");
 	}
+	// https://github.com/eclipse-jdt/eclipse.jdt.core/issues/2233
+	// [Switch-Expression] Assertion failure while compiling enum class that uses switch expression with try block
+	public void testIssue2233() {
+		if (this.complianceLevel < ClassFileConstants.JDK16)
+			return;
+		this.runConformTest(
+				new String[] {
+				"X.java",
+				"""
+				public enum X {
+					PARAMETER, FIELD, METHOD;
+					X() {
+						System.out.println(switch (this) {
+												default -> {
+													try {
+														yield 10;
+													} finally {
+
+													}
+												}
+											});
+					}
+
+				    public static void main(String [] args) {
+				        X x = PARAMETER;
+				        System.out.println(x);
+				    }
+				}
+				"""
+				},
+				"Entry = Hello");
+	}
 }