RFR: 8003380 - Compiler warnings in logging test code
Stuart Marks
stuart.marks at oracle.com
Thu Nov 29 03:11:02 UTC 2012
I'm a bit happier that @SuppressWarnings("unused") has been removed.
Note, I only got pulled into this because of the @SuppressWarnings namespace
question; I didn't look at the rest of the webrev.
s'marks
On 11/28/12 10:51 AM, Jim Gish wrote:
> Since we don't yet have a resolution on this, I modified the test code in
> question to remove the @SuppressWarnings("unused") and actually removed the
> unused references (and retested, of course).
>
> Please review
> http://cr.openjdk.java.net/~jgish/Bug8003380-logging-test-warnings/
> <http://cr.openjdk.java.net/%7Ejgish/Bug8003380-logging-test-warnings/> and if
> ok, Chris, could you please go ahead and push the changes?
>
> thanks,
> Jim
>
>
> On 11/28/2012 01:27 PM, Jim Gish wrote:
>> Here's the list of @suppresswarnings values that are recognized by Eclipse Juno:
>>
>>
>> Excluding warnings using @SuppressWarnings
>>
>> Since Java 5.0, you can disable compilation warnings relative to a subset of
>> a compilation unit using the|java.lang.SuppressWarning|annotation.
>>
>> @SuppressWarning("unused") public void foo() {
>> String s;
>> }
>>
>> Without the annotation, the compiler would complain that the local
>> variable|s|is never used. With the annotation, the compiler silently ignores
>> this warning locally to the|foo|method. This enables to keep the warnings in
>> other locations of the same compilation unit or the same project.
>>
>> The list of tokens that can be used inside a|SuppressWarnings|annotation is:
>>
>> * allto suppress all warnings
>> * boxingto suppress warnings relative to boxing/unboxing operations
>> * castto suppress warnings relative to cast operations
>> * dep-annto suppress warnings relative to deprecated annotation
>> * deprecationto suppress warnings relative to deprecation
>> * fallthroughto suppress warnings relative to missing breaks in switch
>> statements
>> * finallyto suppress warnings relative to finally block that don't return
>> * hidingto suppress warnings relative to locals that hide variable
>> * incomplete-switchto suppress warnings relative to missing entries in
>> a switch statement (enum case)
>> * javadocto suppress warnings relative to javadoc warnings
>> * nlsto suppress warnings relative to non-nls string literals
>> * nullto suppress warnings relative to null analysis
>> * rawtypesto suppress warnings relative to usage of raw types
>> * resourceto suppress warnings relative to usage of resources of type
>> Closeable
>> * restrictionto suppress warnings relative to usage of discouraged or
>> forbidden references
>> * serialto suppress warnings relative to missing serialVersionUID
>> field for a serializable class
>> * static-accessto suppress warnings relative to incorrect static access
>> * static-methodto suppress warnings relative to methods that could be
>> declared as static
>> * superto suppress warnings relative to overriding a method without
>> super invocations
>> * synthetic-accessto suppress warnings relative to unoptimized access
>> from inner classes
>> * sync-overrideto suppress warnings because of missing synchronize
>> when overriding a synchronized method
>> * uncheckedto suppress warnings relative to unchecked operations
>> * unqualified-field-accessto suppress warnings relative to field
>> access unqualified
>> * unusedto suppress warnings relative to unused code and dead code
>>
>> (From
>> http://help.eclipse.org/juno/index.jsp?topic=/org.eclipse.jdt.doc.isv/guide/jdt%255Fapi%255Fcompile.htm)
>>
>> Jim
>>
>> On 11/16/2012 10:02 PM, Stuart Marks wrote:
>>> On 11/16/12 6:39 PM, Stuart Marks wrote:
>>>> The background is that the words that can be supplied to @SuppressWarnings
>>>> reside in an uncontrolled namespace. The JLS [1] defines only "unchecked" and
>>>> any others are compiler-specific. The set of words accepted here by javac is
>>>> the same as the words defined for -Xlint.
>>>>
>>>> [1] http://docs.oracle.com/javase/specs/jls/se7/html/jls-9.html#jls-9.6.3.5
>>>
>>> Whoops, the JLS defines "deprecation" as well (as Alan pointed out in
>>> another thread the other day). But the rest of the point stands.
>>>
>>> s'marks
>>
>
> --
> Jim Gish | Consulting Member of Technical Staff | +1.781.442.0304
> Oracle Java Platform Group | Core Libraries Team
> 35 Network Drive
> Burlington, MA 01803
> jim.gish at oracle.com
>
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