diff --git a/.gitignore b/.gitignore
index b981a473f6..50cb889e5b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -76,4 +76,5 @@ persistence-modules/hibernate5/transaction.log
 apache-avro/src/main/java/com/baeldung/avro/model/
 jta/transaction-logs/
 software-security/sql-injection-samples/derby.log
-spring-soap/src/main/java/com/baeldung/springsoap/gen/
\ No newline at end of file
+spring-soap/src/main/java/com/baeldung/springsoap/gen/
+/report-*.json
\ No newline at end of file
diff --git a/core-groovy/.gitignore b/core-groovy/.gitignore
new file mode 100644
index 0000000000..09220fdf52
--- /dev/null
+++ b/core-groovy/.gitignore
@@ -0,0 +1 @@
+/src/main/resources/ioSerializedObject.txt
\ No newline at end of file
diff --git a/core-groovy/src/main/resources/ioSerializedObject.txt b/core-groovy/src/main/resources/ioSerializedObject.txt
deleted file mode 100644
index 833ed32bf1..0000000000
Binary files a/core-groovy/src/main/resources/ioSerializedObject.txt and /dev/null differ
diff --git a/core-groovy/src/test/groovy/com/baeldung/io/DataAndObjectsUnitTest.groovy b/core-groovy/src/test/groovy/com/baeldung/io/DataAndObjectsUnitTest.groovy
index 0b413cf76c..32a21f6b38 100644
--- a/core-groovy/src/test/groovy/com/baeldung/io/DataAndObjectsUnitTest.groovy
+++ b/core-groovy/src/test/groovy/com/baeldung/io/DataAndObjectsUnitTest.groovy
@@ -34,7 +34,9 @@ class DataAndObjectsUnitTest {
     @Test
     void whenUsingWithObjectOutputStream_thenObjectIsSerializedToFile() {
         Task task = new Task(description:'Take out the trash', startDate:new Date(), status:0)
-        new File('src/main/resources/ioSerializedObject.txt').withObjectOutputStream { out ->
+        def serializedDataFile = new File('src/main/resources/ioSerializedObject.txt')
+        serializedDataFile.createNewFile()
+        serializedDataFile.withObjectOutputStream { out ->
             out.writeObject(task)
         }
 
diff --git a/jackson-2/.gitignore b/jackson-2/.gitignore
index 83c05e60c8..4b1cfaf098 100644
--- a/jackson-2/.gitignore
+++ b/jackson-2/.gitignore
@@ -10,4 +10,7 @@
 # Packaged files #
 *.jar
 *.war
-*.ear
\ No newline at end of file
+*.ear
+
+# Files
+/src/main/resources/orderOutput.yaml
\ No newline at end of file
diff --git a/testing-modules/groovy-spock/.gitignore b/testing-modules/groovy-spock/.gitignore
new file mode 100644
index 0000000000..37118ef42c
--- /dev/null
+++ b/testing-modules/groovy-spock/.gitignore
@@ -0,0 +1 @@
+/report-*.json
\ No newline at end of file