X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fio%2Fcache%2FAppCache.java;fp=src%2Fjalview%2Fio%2Fcache%2FAppCache.java;h=46f6df2c6410422d1361681bda505b61eede26cf;hb=75415606931bbe145f471ff2e13abefc431dbd2c;hp=26e1eda2be1f109926b3bbb55c6728e61b5fab76;hpb=3cd147b2caead40e9abea8c58eb48f6a47975378;p=jalview.git

diff --git a/src/jalview/io/cache/AppCache.java b/src/jalview/io/cache/AppCache.java
index 26e1eda..46f6df2 100644
--- a/src/jalview/io/cache/AppCache.java
+++ b/src/jalview/io/cache/AppCache.java
@@ -118,8 +118,18 @@ public class AppCache implements AppCacheI
   public void persistCache(Cacheable cacheable)
   {
     String cacheKey = cacheable.getCacheKey();
-    LinkedHashSet<String> foundCache = getAllCachedItemsFor(cacheable);
-    String commaJoinedStr = String.join(CACHE_DELIMITER, foundCache);
-    Cache.setProperty(cacheKey, commaJoinedStr);
+    LinkedHashSet<String> foundCacheItems = getAllCachedItemsFor(cacheable);
+    StringBuffer delimitedCacheBuf = new StringBuffer();
+    for (String cacheItem : foundCacheItems)
+    {
+      delimitedCacheBuf.append(CACHE_DELIMITER).append(cacheItem);
+    }
+    if (delimitedCacheBuf.length() > 0)
+    {
+      delimitedCacheBuf.deleteCharAt(0);
+    }
+    String delimitedCacheString = delimitedCacheBuf.toString();
+
+    Cache.setProperty(cacheKey, delimitedCacheString);
   }
 }