diff --git a/java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/SafeDeleteFix.java b/java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/SafeDeleteFix.java
index 3e286629704f..a99cbfce96da 100644
--- a/java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/SafeDeleteFix.java
+++ b/java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/SafeDeleteFix.java
@@ -153,9 +153,11 @@ public class SafeDeleteFix extends LocalQuickFixAndIntentionActionOnPsiElement {
     });
 
     PsiFile containingFile = body.getContainingFile();
+    PsiManager manager = containingFile.getManager();
     return elementsToCheck
       .stream()
       .filter(additionalFilter)
+      .filter(manager::isInProject)
       .filter(m -> m != containingFile)
       .filter(m -> !PsiTreeUtil.isAncestor(psiMember, m, true))
       .filter(m -> !(m instanceof PsiMember member) ||
diff --git a/java/java-tests/testData/refactoring/safeDelete/AccidentalPropertyRef.java b/java/java-tests/testData/refactoring/safeDelete/AccidentalPropertyRef.java
new file mode 100644
index 000000000000..c215fcd44ff9
--- /dev/null
+++ b/java/java-tests/testData/refactoring/safeDelete/AccidentalPropertyRef.java
@@ -0,0 +1,9 @@
+class AccidentalPropertyRef {
+  // mockjdk-21 contains a file java/time/chrono/hijrah-config-Hijrah-umalqura_islamic-umalqura.properties
+  // which contains a line like
+  // 1493=30 29 30 29 30 29 29 30 29 30 30 30
+  // this test ensures that we don't try to remove this line from the JDK
+  public static void <caret>main(String[] args) {
+    String s = "1493";
+  }
+}
diff --git a/java/java-tests/testData/refactoring/safeDelete/AccidentalPropertyRef_after.java b/java/java-tests/testData/refactoring/safeDelete/AccidentalPropertyRef_after.java
new file mode 100644
index 000000000000..e779fb4a7005
--- /dev/null
+++ b/java/java-tests/testData/refactoring/safeDelete/AccidentalPropertyRef_after.java
@@ -0,0 +1,2 @@
+class AccidentalPropertyRef {
+}
diff --git a/java/java-tests/testData/refactoring/safeDelete/NoConflictOnDeleteParameterWithMethodRefArg_after.java b/java/java-tests/testData/refactoring/safeDelete/NoConflictOnDeleteParameterWithMethodRefArg_after.java
index 87b2e5480514..e6868f6e71c8 100644
--- a/java/java-tests/testData/refactoring/safeDelete/NoConflictOnDeleteParameterWithMethodRefArg_after.java
+++ b/java/java-tests/testData/refactoring/safeDelete/NoConflictOnDeleteParameterWithMethodRefArg_after.java
@@ -1,5 +1,3 @@
-import java.util.function.Consumer;
-
 public class Subst {
   void test1() {
     test2();
diff --git a/java/java-tests/testSrc/com/intellij/java/refactoring/SafeDeleteTest.java b/java/java-tests/testSrc/com/intellij/java/refactoring/SafeDeleteTest.java
index 829ff1e45ffa..4c428caa550a 100644
--- a/java/java-tests/testSrc/com/intellij/java/refactoring/SafeDeleteTest.java
+++ b/java/java-tests/testSrc/com/intellij/java/refactoring/SafeDeleteTest.java
@@ -8,6 +8,7 @@ import com.intellij.ide.scratch.ScratchFileService;
 import com.intellij.ide.scratch.ScratchRootType;
 import com.intellij.lang.java.JavaLanguage;
 import com.intellij.openapi.application.WriteAction;
+import com.intellij.openapi.projectRoots.Sdk;
 import com.intellij.openapi.roots.ModuleRootModificationUtil;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.pom.java.LanguageLevel;
@@ -35,6 +36,11 @@ public class SafeDeleteTest extends MultiFileTestCase {
     ModuleRootModificationUtil.updateModel(getModule(), DefaultLightProjectDescriptor::addJetBrainsAnnotations);
   }
 
+  @Override
+  protected Sdk getTestProjectJdk() {
+    return IdeaTestUtil.getMockJdk21();
+  }
+
   @NotNull
   @Override
   protected String getTestDataPath() {
@@ -137,6 +143,10 @@ public class SafeDeleteTest extends MultiFileTestCase {
     doSingleFileTest();
   }
 
+  public void testAccidentalPropertyRef() throws Exception {
+    doSingleFileTest();
+  }
+
   public void testDeleteMethodWithPropertyUsage() {
     doTest("Foo");
   }