diff --git a/autonature/org.eclipse.statet.eutils.autonature/.settings/org.eclipse.jdt.ui.prefs b/autonature/org.eclipse.statet.eutils.autonature/.settings/org.eclipse.jdt.ui.prefs
index a05c1b3..e8d1d32 100644
--- a/autonature/org.eclipse.statet.eutils.autonature/.settings/org.eclipse.jdt.ui.prefs
+++ b/autonature/org.eclipse.statet.eutils.autonature/.settings/org.eclipse.jdt.ui.prefs
@@ -28,6 +28,7 @@
 cleanup.convert_to_enhanced_for_loop_if_loop_var_used=false
 cleanup.convert_to_switch_expressions=true
 cleanup.correct_indentation=false
+cleanup.do_while_rather_than_while=true
 cleanup.double_negation=false
 cleanup.else_if=false
 cleanup.embedded_if=false
@@ -102,7 +103,10 @@
 cleanup.standard_comparison=false
 cleanup.static_inner_class=false
 cleanup.strictly_equal_or_different=false
+cleanup.stringbuffer_to_stringbuilder=false
 cleanup.stringbuilder=false
+cleanup.stringbuilder_for_local_vars=true
+cleanup.stringconcat_to_textblock=false
 cleanup.substring=true
 cleanup.switch=false
 cleanup.system_property=true
diff --git a/autorun/org.eclipse.statet.eutils.autorun/.settings/org.eclipse.jdt.ui.prefs b/autorun/org.eclipse.statet.eutils.autorun/.settings/org.eclipse.jdt.ui.prefs
index a05c1b3..e8d1d32 100644
--- a/autorun/org.eclipse.statet.eutils.autorun/.settings/org.eclipse.jdt.ui.prefs
+++ b/autorun/org.eclipse.statet.eutils.autorun/.settings/org.eclipse.jdt.ui.prefs
@@ -28,6 +28,7 @@
 cleanup.convert_to_enhanced_for_loop_if_loop_var_used=false
 cleanup.convert_to_switch_expressions=true
 cleanup.correct_indentation=false
+cleanup.do_while_rather_than_while=true
 cleanup.double_negation=false
 cleanup.else_if=false
 cleanup.embedded_if=false
@@ -102,7 +103,10 @@
 cleanup.standard_comparison=false
 cleanup.static_inner_class=false
 cleanup.strictly_equal_or_different=false
+cleanup.stringbuffer_to_stringbuilder=false
 cleanup.stringbuilder=false
+cleanup.stringbuilder_for_local_vars=true
+cleanup.stringconcat_to_textblock=false
 cleanup.substring=true
 cleanup.switch=false
 cleanup.system_property=true