removal of a not used argument

src/main/java/click/kamil/springstatemachineexporter/ast/Main.java

@@ -29,6 +29,7 @@ public class Main {
     private static final List<String> TARGET_ANNOTATIONS = List.of("EnableStateMachineFactory", "EnableStateMachine");
 
     public static void main(String[] args) throws IOException {
+        AstFileFinder finder = new AstFileFinder();
         List<Path> javaFiles = FileUtils.findFilesWithExtension(Paths.get(START_DIR), EXTENSION);
 
         // List of output handlers
@@ -40,7 +41,6 @@ public class Main {
 
         for (Path javaFile : javaFiles) {
             String source = Files.readString(javaFile);
-            AstFileFinder finder = new AstFileFinder(source);
 
             if (finder.hasClassWithAnnotation(source, TARGET_ANNOTATIONS)) {
                 System.out.println("Found annotation in: " + javaFile.toAbsolutePath());

src/main/java/click/kamil/springstatemachineexporter/ast/in/AstFileFinder.java

@@ -6,17 +6,17 @@ import java.util.List;
 import java.util.concurrent.atomic.AtomicBoolean;
 
 public class AstFileFinder {
-    private final CompilationUnit cu;
+    private final ASTParser parser;
 
-    public AstFileFinder(String source) {
-        ASTParser parser = ASTParser.newParser(AST.getJLSLatest());
+    public AstFileFinder() {
+        this.parser = ASTParser.newParser(AST.getJLSLatest());
         parser.setKind(ASTParser.K_COMPILATION_UNIT);
         parser.setResolveBindings(false);
-        parser.setSource(source.toCharArray());
-        this.cu = (CompilationUnit) parser.createAST(null);
     }
 
     public boolean hasClassWithAnnotation(String source, List<String> annotationNames) {
+        parser.setSource(source.toCharArray());
+        CompilationUnit cu = (CompilationUnit) parser.createAST(null);
         AtomicBoolean found = new AtomicBoolean(false);
         cu.accept(new ASTVisitor() {
             @Override