--- a/src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp	Tue Jan 14 16:40:33 2014 +0100
+++ b/src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp	Thu Jan 23 14:47:23 2014 +0100
@@ -116,7 +116,7 @@
 // If only -XX:NewRatio is set we should use the specified ratio of the heap
 // as both min and max. This will be interpreted as "fixed" just like the
 // NewSize==MaxNewSize case above. But we will update the min and max
-// everytime the heap size changes.
+// every time the heap size changes.
 //
 // NewSize and MaxNewSize override NewRatio. So, NewRatio is ignored if it is
 // combined with either NewSize or MaxNewSize. (A warning message is printed.)
@@ -523,9 +523,9 @@
   // synchronize updates to this field.
   size_t _inc_cset_recorded_rs_lengths;
 
-  // A concurrent refinement thread periodcially samples the young
+  // A concurrent refinement thread periodically samples the young
   // region RSets and needs to update _inc_cset_recorded_rs_lengths as
-  // the RSets grow. Instead of having to syncronize updates to that
+  // the RSets grow. Instead of having to synchronize updates to that
   // field we accumulate them in this field and add it to
   // _inc_cset_recorded_rs_lengths_diffs at the start of a GC.
   ssize_t _inc_cset_recorded_rs_lengths_diffs;
@@ -604,7 +604,7 @@
   // Calculate and return the maximum young list target length that
   // can fit into the pause time goal. The parameters are: rs_lengths
   // represent the prediction of how large the young RSet lengths will
-  // be, base_min_length is the alreay existing number of regions in
+  // be, base_min_length is the already existing number of regions in
   // the young list, min_length and max_length are the desired min and
   // max young list length according to the user's inputs.
   uint calculate_young_list_target_length(size_t rs_lengths,