svn commit: r1788957 - /jackrabbit/oak/trunk/oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/file/FileStoreBuilder.java

[mduerig]

Author: mduerig
Date: Mon Mar 27 15:34:44 2017
New Revision: 1788957

URL: http://svn.apache.org/viewvc?rev=1788957&view=rev
Log:
OAK-5991: FileStoreBuilder should print out a more helpful error message when 
buildReadOnly fails
Improved error message
Patch credits to Robert Munteanu

Modified:
    
jackrabbit/oak/trunk/oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/file/FileStoreBuilder.java

Modified: 
jackrabbit/oak/trunk/oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/file/FileStoreBuilder.java
URL: 
http://svn.apache.org/viewvc/jackrabbit/oak/trunk/oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/file/FileStoreBuilder.java?rev=1788957&r1=1788956&r2=1788957&view=diff
==============================================================================
--- 
jackrabbit/oak/trunk/oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/file/FileStoreBuilder.java
 (original)
+++ 
jackrabbit/oak/trunk/oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/file/FileStoreBuilder.java
 Mon Mar 27 15:34:44 2017
@@ -350,7 +350,8 @@ public class FileStoreBuilder {
     @Nonnull
     public ReadOnlyFileStore buildReadOnly() throws 
InvalidFileStoreVersionException, IOException {
         checkState(!built, "Cannot re-use builder");
-        checkState(directory.exists() && directory.isDirectory());
+        checkState(directory.exists() && directory.isDirectory(),
+                "%s does not exist or is not a directory", directory);
         built = true;
         ReadOnlyRevisions revisions = new ReadOnlyRevisions(directory);
         LOG.info("Creating file store {}", this);