Big fonts typically of size 36+ gets garbled when all antialiasing methods are switched off. Under the baseline there is copied upper part of the text. Size of the copied part as same as its vertical position depends on the font size.

Rotated texts gets clipped by rectangle and appears multiple times when all antialiasing methods are switched off.
Found in promoted j2sdk 1.5.0 b22.

How to reproduce:
get the GlobalSuite
sqeweb.sfbay.Sun.COM:/java/j2se-sqe/i18n/workspaces/i18n_tiger_ws/i18n/bundles/gs15-b02.tar.gz
run
sh run_gs.sh -jdk:<path_to_jdk> <test_case>
where test_case is from the following list

For rotation problems:
font-render/2d/one/TextRotationRenderTest.java
font-render/2d/one/TextTransformRenderTest.java
font-render/2d/two/FontEffectTest2.java
font-render/2d/two/Graphics2DTest.java

For font size problems:
font-render/2d/one/CanvasRenderTest[1-5].java
font-render/awt/one/CanvasRenderTest[1-5].java
font-render/awt/one/CheckboxMenuItemRenderTest3.java
font-render/awt/one/ChoiceRenderTest[1-5].java
font-render/awt/one/LabelRenderTest[1-5].java
font-render/awt/one/TextFieldRenderTest[1-5].java
font-render/awt/two/CharView.java
font-render/awt/two/CharViewMultiLine.java
font-render/awt/two/MenuView.java
font-render/swing/one/JComboBoxRenderTest.java
font-render/swing/one/JComboBoxRenderTestDInput.java
font-render/swing/one/JComboBoxRenderTestDialog.java
font-render/swing/one/JComboBoxRenderTestMono.java
font-render/swing/one/JComboBoxRenderTestSans.java
font-render/swing/one/JListRenderTestMono.java
font-render/swing/one/JMenuRenderTestMono.java
font-render/swing/one/JTableRenderTestMono.java
font-render/swing/three/SwingUtilitiesTest.java