Previously, Oracle JDK 7 did not include OpenType CFF fonts (.otf fonts) into the standard logical fonts (such as "Dialog" and "SansSerif"). This resulted in missing glyphs when rendering text. In the most extreme cases where only CFF fonts were installed on the system, a Java exception could be thrown.

Several Linux distributions were affected by this issue because they rely on CFF fonts to support some languages, which is common for CJK (Chinese, Japanese, and Korean) languages.

Oracle JDK 7 now uses these CFF fonts, and this issue has been resolved.