diff --git a/.gitignore b/.gitignore
index 8596d00..b795447 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@ benchmarks/output
 .ci
 Makefile.main
 .shared
+.idea
diff --git a/java/src/main/java/tech/sourced/enry/Enry.java b/java/src/main/java/tech/sourced/enry/Enry.java
index a1eaa21..46ad20e 100644
--- a/java/src/main/java/tech/sourced/enry/Enry.java
+++ b/java/src/main/java/tech/sourced/enry/Enry.java
@@ -5,6 +5,8 @@ import tech.sourced.enry.nativelib.*;
 import static tech.sourced.enry.GoUtils.*;
 
 public class Enry {
+    public static final Guess unknownLanguage = new Guess("", false);
+
     private static final EnryLibrary nativeLib = EnryLibrary.INSTANCE;
 
     /**
diff --git a/java/src/main/java/tech/sourced/enry/Guess.java b/java/src/main/java/tech/sourced/enry/Guess.java
index ff9fbaa..8cd4b89 100644
--- a/java/src/main/java/tech/sourced/enry/Guess.java
+++ b/java/src/main/java/tech/sourced/enry/Guess.java
@@ -20,4 +20,32 @@ public class Guess {
         this.language = language;
         this.safe = safe;
     }
+
+    @Override
+    public String toString() {
+        return "Guess{" +
+                "language='" + language + '\'' + ", safe=" + safe +
+                '}';
+    }
+
+    @Override
+    public boolean equals(Object object) {
+        if (this == object) return true;
+        if (object == null || getClass() != object.getClass()) return false;
+        if (!super.equals(object)) return false;
+
+        Guess guess = (Guess) object;
+
+        if (safe != guess.safe) return false;
+        if (language != null ? !language.equals(guess.language) : guess.language != null) return false;
+
+        return true;
+    }
+
+    public int hashCode() {
+        int result = super.hashCode();
+        result = 23 * result + (language != null ? language.hashCode() : 0);
+        result = 23 * result + (safe ? 1 : 0);
+        return result;
+    }
 }