diff --git a/bindings/java/src/org/sleuthkit/datamodel/HostManager.java b/bindings/java/src/org/sleuthkit/datamodel/HostManager.java
index d8255b2e7823a93e715bb3264b3f2794ac95f6ab..fb8d2eda00053413b525f4a5df7dd11c087f6b37 100755
--- a/bindings/java/src/org/sleuthkit/datamodel/HostManager.java
+++ b/bindings/java/src/org/sleuthkit/datamodel/HostManager.java
@@ -295,7 +295,7 @@ public List<DataSource> getDataSourcesForHost(Host host) throws TskCoreException
 
 			return dataSources;
 		} catch (SQLException | TskDataException ex) {
-			throw new TskCoreException(String.format("Error getting data sources for host " + host.getName()), ex);
+			throw new TskCoreException(String.format("Error getting data sources for host %s", host.getName()), ex);
 		} finally {
 			db.releaseSingleUserCaseReadLock();
 		}
diff --git a/bindings/java/src/org/sleuthkit/datamodel/SlackFile.java b/bindings/java/src/org/sleuthkit/datamodel/SlackFile.java
index e6bf7c4e0d5c2ff98fc2efdaa90c9d08e5907630..f53f63aa79748cf033fa0c667342ccf031e6504f 100644
--- a/bindings/java/src/org/sleuthkit/datamodel/SlackFile.java
+++ b/bindings/java/src/org/sleuthkit/datamodel/SlackFile.java
@@ -117,7 +117,7 @@ public class SlackFile extends FsContent {
 	 */
 	@Override
 	@SuppressWarnings("deprecation")
-	protected int readInt(byte[] buf, long offset, long len) throws TskCoreException {
+	protected synchronized int readInt(byte[] buf, long offset, long len) throws TskCoreException {
 		if (offset == 0 && size == 0) {
 			//special case for 0-size file
 			return 0;
diff --git a/bindings/java/src/org/sleuthkit/datamodel/SleuthkitCase.java b/bindings/java/src/org/sleuthkit/datamodel/SleuthkitCase.java
index c04094367e8b6e2164ad3896bffb941361514893..5cbde51eccbbba7ca93bb8d4c8546e867ddfea01 100644
--- a/bindings/java/src/org/sleuthkit/datamodel/SleuthkitCase.java
+++ b/bindings/java/src/org/sleuthkit/datamodel/SleuthkitCase.java
@@ -10090,16 +10090,16 @@ public void setImagePaths(long obj_id, List<String> paths) throws TskCoreExcepti
 	 *                          within tsk core and the update fails
 	 */
 	@Beta
-	public void setImagePaths(long obj_id, List<String> paths, CaseDbTransaction trans) throws TskCoreException {	
+	public void setImagePaths(long objId, List<String> paths, CaseDbTransaction trans) throws TskCoreException {	
 		try {
 			PreparedStatement statement = trans.getConnection().getPreparedStatement(PREPARED_STATEMENT.DELETE_IMAGE_NAME);
 			statement.clearParameters();
-			statement.setLong(1, obj_id);
+			statement.setLong(1, objId);
 			trans.getConnection().executeUpdate(statement);
 			for (int i = 0; i < paths.size(); i++) {
 				statement = trans.getConnection().getPreparedStatement(PREPARED_STATEMENT.INSERT_IMAGE_NAME);
 				statement.clearParameters();
-				statement.setLong(1, obj_id);
+				statement.setLong(1, objId);
 				statement.setString(2, paths.get(i));
 				statement.setLong(3, i);
 				trans.getConnection().executeUpdate(statement);
diff --git a/tsk/fs/ext2fs.c b/tsk/fs/ext2fs.c
index a7fe539590a72cdeed96b6be8193aadbea7eddcc..adb06e9ba453772d510e5039433cc55db28c314c 100755
--- a/tsk/fs/ext2fs.c
+++ b/tsk/fs/ext2fs.c
@@ -1613,7 +1613,7 @@ ext2fs_make_data_run_extent(TSK_FS_INFO * fs_info, TSK_FS_ATTR * fs_attr,
 static TSK_OFF_T
 ext2fs_make_data_run_extent_index(TSK_FS_INFO * fs_info,
     TSK_FS_ATTR * fs_attr, TSK_FS_ATTR * fs_attr_extent,
-    TSK_DADDR_T idx_block)
+    TSK_DADDR_T idx_block, TSK_DADDR_T * idx_offset)
 {
     ext2fs_extent_header *header;
     TSK_FS_ATTR_RUN *data_run;
@@ -1655,8 +1655,10 @@ ext2fs_make_data_run_extent_index(TSK_FS_INFO * fs_info,
         free(buf);
         return 1;
     }
+    data_run->offset = *idx_offset;
+    ++*idx_offset;
     data_run->addr = idx_block;
-    data_run->len = fs_blocksize;
+    data_run->len = 1;
 
     if (tsk_fs_attr_add_run(fs_info, fs_attr_extent, data_run)) {
         tsk_fs_attr_run_free(data_run);
@@ -1701,7 +1703,7 @@ ext2fs_make_data_run_extent_index(TSK_FS_INFO * fs_info,
                         index->ei_leaf_hi)) << 16) | tsk_getu32(fs_info->
                 endian, index->ei_leaf_lo);
             if (ext2fs_make_data_run_extent_index(fs_info, fs_attr,
-                    fs_attr_extent, child_block)) {
+                    fs_attr_extent, child_block, idx_offset)) {
                 free(buf);
                 return 1;
             }
@@ -1934,6 +1936,7 @@ ext4_load_attrs_extents(TSK_FS_FILE *fs_file)
     else {                  /* interior node */
         TSK_FS_ATTR *fs_attr_extent;
         int32_t extent_index_size;
+        TSK_DADDR_T idx_offset;
 
         // Ensure fs_meta->content_ptr is sufficiently large
         // Otherwise indices[i] below can cause an OOB read
@@ -1965,6 +1968,7 @@ ext4_load_attrs_extents(TSK_FS_FILE *fs_file)
         }
         
         indices = (ext2fs_extent_idx *) (header + 1);
+        idx_offset = 0;
         for (i = 0; i < num_entries; i++) {
             ext2fs_extent_idx *index = &indices[i];
             TSK_DADDR_T child_block =
@@ -1973,7 +1977,7 @@ ext4_load_attrs_extents(TSK_FS_FILE *fs_file)
                                     ei_leaf_hi)) << 16) | tsk_getu32(fs_info->
                                                                      endian, index->ei_leaf_lo);
             if (ext2fs_make_data_run_extent_index(fs_info, fs_attr,
-                                                  fs_attr_extent, child_block)) {
+                                                  fs_attr_extent, child_block, &idx_offset)) {
                 return 1;
             }
         }