"List to Array to List to Set" becomes "to Set".

src/java/com/samskivert/jdbc/depot/DepotMarshaller.java

@@ -748,8 +748,8 @@ public class DepotMarshaller<T extends PersistentRecord>
 
         // next we create any full text search indexes that exist on the record but not in the
         // table, first step being to do a dialect-sensitive enumeration of existing indexes
-        Set<String> tableFts = new HashSet<String>(Arrays.asList(
-            builder.getFtsIndexes(metaData.tableColumns, metaData.indexColumns.keySet())));
+        Set<String> tableFts = new HashSet<String>();
+        builder.getFtsIndexes(metaData.tableColumns, metaData.indexColumns.keySet(), tableFts);
 
         // then iterate over what should be there
         for (final FullTextIndex recordFts : _fullTextIndexes.values()) {

src/java/com/samskivert/jdbc/depot/MySQLBuilder.java

@@ -31,6 +31,7 @@ import java.sql.Time;
 import java.sql.Timestamp;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Set;
 
 import com.samskivert.Log;
 import com.samskivert.jdbc.JDBCUtil;
@@ -137,15 +138,14 @@ public class MySQLBuilder
     }
 
     @Override
-    public String[] getFtsIndexes (Iterable<String> columns, Iterable<String> indexes)
+    public void getFtsIndexes (
+        Iterable<String> columns, Iterable<String> indexes, Set<String> target)
     {
-        List<String> result = new ArrayList<String>();
         for (String index : indexes) {
             if (index.startsWith("ftsIx_")) {
-                result.add(index.substring("ftsIx_".length()));
+                target.add(index.substring("ftsIx_".length()));
             }
         }
-        return result.toArray(new String[0]);
     }
 
     @Override

src/java/com/samskivert/jdbc/depot/PostgreSQLBuilder.java

@@ -31,6 +31,7 @@ import java.sql.Time;
 import java.sql.Timestamp;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Set;
 
 import com.samskivert.jdbc.DatabaseLiaison;
 import com.samskivert.jdbc.JDBCUtil;
@@ -111,15 +112,14 @@ public class PostgreSQLBuilder
     }
 
     @Override
-    public String[] getFtsIndexes (Iterable<String> columns, Iterable<String> indexes)
+    public void getFtsIndexes (
+        Iterable<String> columns, Iterable<String> indexes, Set<String> target)
     {
-        List<String> result = new ArrayList<String>();
         for (String column : columns) {
             if (column.startsWith("ftsCol_")) {
-                result.add(column.substring("ftsCol_".length()));
+                target.add(column.substring("ftsCol_".length()));
             }
         }
-        return result.toArray(new String[0]);
     }
 
     @Override

src/java/com/samskivert/jdbc/depot/SQLBuilder.java

@@ -21,6 +21,8 @@
 package com.samskivert.jdbc.depot;
 
 import java.lang.reflect.Field;
+import java.util.Set;
+
 import java.sql.Connection;
 import java.sql.PreparedStatement;
 import java.sql.SQLException;
@@ -187,11 +189,11 @@ public abstract class SQLBuilder
     public abstract boolean isPrivateColumn (String column);
 
     /**
-     * Figure out what full text search indexes already exist on this table and return the names
-     * of those indexes as an array.
+     * Figure out what full text search indexes already exist on this table and add the names of
+     * those indexes to the supplied target set.
      */
-    public abstract String[] getFtsIndexes (
-        Iterable<String> columns, Iterable<String> indexes);
+    public abstract void getFtsIndexes (
+        Iterable<String> columns, Iterable<String> indexes, Set<String> target);
 
     /**
      * Overridden by subclasses to create a dialect-specific {@link BuildVisitor}.