diff --git a/classpath/java-io.cpp b/classpath/java-io.cpp
index b38b95bc3b..6fa22bf359 100644
--- a/classpath/java-io.cpp
+++ b/classpath/java-io.cpp
@@ -314,10 +314,29 @@ Java_java_io_File_toCanonicalPath(JNIEnv* /*e*/, jclass, jstring path)
 }
 
 extern "C" JNIEXPORT jstring JNICALL
-Java_java_io_File_toAbsolutePath(JNIEnv* /*e*/, jclass, jstring path)
+Java_java_io_File_toAbsolutePath(JNIEnv* e, jclass, jstring path)
 {
+#ifdef PLATFORM_WINDOWS
   // todo
   return path;
+#else
+  jstring result = path;
+  string_t chars = getChars(e, path);
+  if (chars) {
+    if (chars[0] != '/') {
+      char* cwd = getcwd(NULL, 0);
+      if (cwd) {
+        unsigned size = strlen(cwd) + strlen(chars) + 2;
+        RUNTIME_ARRAY(char, buffer, size);
+        snprintf(RUNTIME_ARRAY_BODY(buffer), size, "%s/%s", cwd, chars);
+        result = e->NewStringUTF(RUNTIME_ARRAY_BODY(buffer));
+        free(cwd);
+      }
+    }
+    releaseChars(e, path, chars);
+  }
+  return result;
+#endif
 }
 
 extern "C" JNIEXPORT jlong JNICALL
diff --git a/classpath/java/io/File.java b/classpath/java/io/File.java
index 3eb8ad2f03..51e006e53f 100644
--- a/classpath/java/io/File.java
+++ b/classpath/java/io/File.java
@@ -120,6 +120,10 @@ public class File implements Serializable {
     return toAbsolutePath(path);
   }
 
+  public File getAbsoluteFile() {
+    return new File(getAbsolutePath());
+  }
+
   private static native long length(String path);
 
   public long length() {