void (@NotNull String text, int offset, @NotNull String prefix, @NotNull CompletionResultSet result) { final PsiCodeFragment fragment = item.typeCodeFragment; if (fragment instanceof PsiTypeCodeFragment) { final PsiType type; try { type = ((PsiTypeCodeFragment)fragment).getType(); } catch (Exception e) { return; } final SuggestedNameInfo info = JavaCodeStyleManager.getInstance(myProject) .suggestVariableName(VariableKind.PARAMETER, null, null, type); for (String completionVariant : info.names) { final LookupElementBuilder element = LookupElementBuilder.create(completionVariant); result.addElement(element.withLookupString(StringUtil.toLowerCase(completionVariant))); } } }