Lots of findbugs markers.

1 files changed, 6 insertions, 2 deletions

diff --git a/src/main/java/org/anarres/cpp/VirtualFileSystem.java b/src/main/java/org/anarres/cpp/VirtualFileSystem.java
index 56e53ac..9c77d30 100644
--- a/src/main/java/org/anarres/cpp/VirtualFileSystem.java
+++ b/src/main/java/org/anarres/cpp/VirtualFileSystem.java
@@ -16,12 +16,16 @@
  */
 package org.anarres.cpp;
 
+import javax.annotation.Nonnull;
+
 /**
  * An extremely lightweight virtual file system interface.
  */
 public interface VirtualFileSystem {
 
-    public VirtualFile getFile(String path);
+    @Nonnull
+    public VirtualFile getFile(@Nonnull String path);
 
-    public VirtualFile getFile(String dir, String name);
+    @Nonnull
+    public VirtualFile getFile(@Nonnull String dir, @Nonnull String name);
 }