MainProgram polls nanoTime too often

[simantics/platform.git] / bundles / org.simantics.acorn / src / org / simantics / acorn / HeadState.java

diff --git a/bundles/org.simantics.acorn/src/org/simantics/acorn/HeadState.java b/bundles/org.simantics.acorn/src/org/simantics/acorn/HeadState.java
index a6a1622c80027d68b11b05a7de6b6d1891bb26f5..106134264c606cc1d3ded07199ec5b1688569e7a 100644 (file)
--- a/bundles/org.simantics.acorn/src/org/simantics/acorn/HeadState.java
+++ b/bundles/org.simantics.acorn/src/org/simantics/acorn/HeadState.java
@@ -62,8 +62,7 @@ public class HeadState {
                        HeadState1 old = HeadState1.load(directory);
                        return old.migrate();
                }
-            return new HeadState();
-//            throw new InvalidHeadStateException(i);
+            throw new InvalidHeadStateException(i);
         } catch (NoSuchAlgorithmException e) {
             throw new Error("SHA-1 Algorithm not found", e);
         } catch (Throwable t) {
@@ -100,6 +99,8 @@ public class HeadState {
     }
 
     public static boolean validateHeadStateIntegrity(Path headState) {
+        if (!Files.exists(headState))
+            return false;
         try {
             byte[] bytes = Files.readAllBytes(headState);
             MessageDigest sha1 = MessageDigest.getInstance(SHA_1);