optionally inject a static method

Author: nahsra

core-codemods/src/intTest/java/io/codemodder/integration/WebGoat20238Test.java

@@ -46,7 +46,7 @@ void it_remediates_webgoat_2023_8() throws Exception {
             .flatMap(Collection::stream)
             .toList();
 
-    assertThat(fileChanges.size(), is(50));
+    assertThat(fileChanges.size(), is(51));
 
     verifyStandardCodemodResults(fileChanges);
 

framework/codemodder-base/src/main/java/io/codemodder/remediation/zipslip/ZipEntryStartFixStrategy.java

@@ -24,14 +24,22 @@ public SuccessOrReason fix(final CompilationUnit cu, final Node node) {
       return SuccessOrReason.reason("No encompassing class found");
     }
 
-    addSanitizeName(classDeclRef.get());
+    Optional<MethodDeclaration> methodAncestor = call.findAncestor(MethodDeclaration.class);
+    if (methodAncestor.isEmpty()) {
+      return SuccessOrReason.reason("No encompassing method found");
+    }
+
+    boolean addStatic = methodAncestor.get().isStatic() || classDeclRef.get().isInterface();
+
+    addSanitizeName(classDeclRef.get(), addStatic);
     wrap(call).withScopelessMethod("sanitizeZipFilename");
 
     return SuccessOrReason.success();
   }
 
-  private static void addSanitizeName(final ClassOrInterfaceDeclaration classDecl) {
-    final String method =
+  private static void addSanitizeName(
+      final ClassOrInterfaceDeclaration classDecl, final boolean addStatic) {
+    String method =
         """
                 String sanitizeZipFilename(String entryName) {
                     if (entryName == null || entryName.trim().isEmpty()) {
@@ -43,6 +51,11 @@ String sanitizeZipFilename(String entryName) {
                     return entryName;
                 }
                 """;
+
+    if (addStatic) {
+      method = "static " + method;
+    }
+
     boolean sanitizeMethodPresent =
         classDecl.findAll(MethodDeclaration.class).stream()
             .anyMatch(