diff --git a/java/kotlin-extractor/src/main/java/com/semmle/util/expansion/ExpansionEnvironment.java b/java/kotlin-extractor/src/main/java/com/semmle/util/expansion/ExpansionEnvironment.java
index a8008ca6299..47bbb1d2029 100644
--- a/java/kotlin-extractor/src/main/java/com/semmle/util/expansion/ExpansionEnvironment.java
+++ b/java/kotlin-extractor/src/main/java/com/semmle/util/expansion/ExpansionEnvironment.java
@@ -123,7 +123,7 @@ public class ExpansionEnvironment {
 	}
 
 	/**
-	 * This the old default constructor, which always enables command substutitions.
+	 * This the old default constructor, which always enables command substitutions.
 	 * <b>Doing so is a security risk</b> whenever the string you expand may come
 	 * from an untrusted source, so you should only do that when you explicitly want
 	 * to do it and have decided that it is safe. (And then use the constructor that
diff --git a/java/kotlin-extractor/src/main/java/com/semmle/util/files/FileUtil.java b/java/kotlin-extractor/src/main/java/com/semmle/util/files/FileUtil.java
index 6c3e754310e..81a9f46a71f 100644
--- a/java/kotlin-extractor/src/main/java/com/semmle/util/files/FileUtil.java
+++ b/java/kotlin-extractor/src/main/java/com/semmle/util/files/FileUtil.java
@@ -1033,11 +1033,11 @@ public class FileUtil
 	}
 
 	/**
-	 * Santize path string To handle windows drive letters and cross-platform builds.
+	 * Sanitize path string To handle windows drive letters and cross-platform builds.
 	 * @param pathString to be sanitized
 	 * @return sanitized path string
 	 */
-	private static String santizePathString(String pathString) {
+	private static String sanitizePathString(String pathString) {
 		// Replace ':' by '_', as the extractor does - to handle Windows drive letters
 		pathString = pathString.replace(':', '_');
 
@@ -1059,7 +1059,7 @@ public class FileUtil
 	 */
 	public static File appendAbsolutePath (File root, String absolutePath)
 	{
-		absolutePath = santizePathString(absolutePath);
+		absolutePath = sanitizePathString(absolutePath);
 
 		return new File(root, absolutePath).getAbsoluteFile();
 	}
@@ -1075,7 +1075,7 @@ public class FileUtil
 	 */
 	public static Path appendAbsolutePath(Path root, String absolutePathString){
 
-		absolutePathString = santizePathString(absolutePathString);
+		absolutePathString = sanitizePathString(absolutePathString);
 
 		Path path = Paths.get(absolutePathString);
 
diff --git a/java/kotlin-extractor/src/main/kotlin/KotlinExtractorExtension.kt b/java/kotlin-extractor/src/main/kotlin/KotlinExtractorExtension.kt
index f7afd38dadc..a31bfee0b4f 100644
--- a/java/kotlin-extractor/src/main/kotlin/KotlinExtractorExtension.kt
+++ b/java/kotlin-extractor/src/main/kotlin/KotlinExtractorExtension.kt
@@ -400,7 +400,7 @@ private abstract class TrapFileWriter(val logger: FileLogger, trapName: String,
 
     fun getTempWriter(): BufferedWriter {
         if (this::tempFile.isInitialized) {
-            logger.error("Temp writer reinitiailised for $realFile")
+            logger.error("Temp writer reinitialized for $realFile")
         }
         tempFile = File.createTempFile(realFile.getName() + ".", ".trap.tmp" + extension, parentDir)
         return getWriter(tempFile)
diff --git a/java/kotlin-extractor/src/main/kotlin/KotlinUsesExtractor.kt b/java/kotlin-extractor/src/main/kotlin/KotlinUsesExtractor.kt
index 00de58e0a30..69cb6389bae 100644
--- a/java/kotlin-extractor/src/main/kotlin/KotlinUsesExtractor.kt
+++ b/java/kotlin-extractor/src/main/kotlin/KotlinUsesExtractor.kt
@@ -944,7 +944,7 @@ open class KotlinUsesExtractor(
 
 
     private val jvmWildcardAnnotation = FqName("kotlin.jvm.JvmWildcard")
-    private val jvmWildcardSuppressionAnnotaton = FqName("kotlin.jvm.JvmSuppressWildcards")
+    private val jvmWildcardSuppressionAnnotation = FqName("kotlin.jvm.JvmSuppressWildcards")
 
     private fun arrayExtendsAdditionAllowed(t: IrSimpleType): Boolean =
         // Note the array special case includes Array<*>, which does permit adding `? extends ...` (making `? extends Object[]` in that case)
@@ -977,7 +977,7 @@ open class KotlinUsesExtractor(
         when {
             t.hasAnnotation(jvmWildcardAnnotation) -> true
             !addByDefault -> false
-            t.hasAnnotation(jvmWildcardSuppressionAnnotaton) -> false
+            t.hasAnnotation(jvmWildcardSuppressionAnnotation) -> false
             v == Variance.IN_VARIANCE -> !(t.isNullableAny() || t.isAny())
             v == Variance.OUT_VARIANCE -> extendsAdditionAllowed(t)
             else -> false
@@ -1225,9 +1225,9 @@ open class KotlinUsesExtractor(
     }
 
     fun hasWildcardSuppressionAnnotation(d: IrDeclaration) =
-        d.hasAnnotation(jvmWildcardSuppressionAnnotaton) ||
+        d.hasAnnotation(jvmWildcardSuppressionAnnotation) ||
         // Note not using `parentsWithSelf` as that only works if `d` is an IrDeclarationParent
-        d.parents.any { (it as? IrAnnotationContainer)?.hasAnnotation(jvmWildcardSuppressionAnnotaton) == true }
+        d.parents.any { (it as? IrAnnotationContainer)?.hasAnnotation(jvmWildcardSuppressionAnnotation) == true }
 
     /**
      * Class to hold labels for generated classes around local functions, lambdas, function references, and property references.