What Are the Different Warning Names That Can Be Suppressed by the @SuppressWarnings Annotation in Java?

Understanding @SuppressWarnings Warning Names in Java

Java's @SuppressWarnings annotation allows developers to suppress certain compiler warnings during code compilation. The parameter of this annotation, placed within double quotes, specifies the warning to be suppressed.

List of Valid Warning Names

The specific list of valid warning names may vary depending on the IDE or compiler used. Here is a comprehensive list for Eclipse:

Eclipse Galileo

• all: Suppresses all warnings
• boxing: Suppresses warnings related to boxing/unboxing
• cast: Suppresses warnings related to casting
• dep-ann: Suppresses warnings related to deprecated annotations
• deprecation: Suppresses warnings related to deprecation
• fallthrough: Suppresses warnings related to missing breaks in switch statements
• finally: Suppresses warnings related to finally blocks that don't return
• hiding: Suppresses warnings related to local variables hiding class variables
• incomplete-switch: Suppresses warnings related to missing cases in switch statements (enum cases)
• nls: Suppresses warnings related to non-nls string literals
• null: Suppresses warnings related to null analysis
• restriction: Suppresses warnings related to using discouraged or forbidden references
• serial: Suppresses warnings related to missing serialVersionUID field in serializable classes
• static-access: Suppresses warnings related to incorrect static access
• synthetic-access: Suppresses warnings related to unoptimized access from inner classes
• unchecked: Suppresses warnings related to unchecked operations
• unqualified-field-access: Suppresses warnings related to unqualified field access
• unused: Suppresses warnings related to unused code

Eclipse Indigo (adds to Galileo)

• javadoc: Suppresses warnings related to javadoc
• rawtype: Suppresses warnings related to raw types
• static-method: Suppresses warnings related to methods that could be declared static
• super: Suppresses warnings related to overriding methods without super invocations

Eclipse Juno (adds to Indigo)

• resource: Suppresses warnings related to using Closeable-type resources
• sync-override: Suppresses warnings related to missing synchronization when overriding a synchronized method

Eclipse Kepler and Luna (use Juno's list)

Other IDEs and Compilers

While the aforementioned lists cover Eclipse, other IDEs and compilers may have similar or slightly different sets of warning names. It is recommended to consult the documentation specific to the compiler or IDE being used.

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