FontFormatException

FontFormatException is a Java exception that signals an error related to font operations. It is part of the java.awt.font package and is a subclass of RuntimeException. This exception is typically thrown when there is a problem with the format of a font file, such as a corrupted file or an unsupported font type. It can also occur if the font data is incomplete or invalid.

When a FontFormatException is encountered, it usually means that the Java runtime environment was unable to properly load or process the specified font. This can happen during the initialization of a Font object or when attempting to perform operations that rely on font metrics or rendering. Developers need to be aware of this exception to handle potential issues with font resources in their applications.

Common causes of FontFormatException include attempting to load a font file that is not a valid TrueType, OpenType, or PostScript font, or if the file itself is damaged. Another possibility is that the font's internal structure is malformed according to the expected specifications. Handling this exception involves catching it and then deciding on an appropriate course of action, such as informing the user of the problem, falling back to a default font, or logging the error for later investigation. It is important to ensure that all font files used in a Java application are correctly formatted and accessible.