FULL PRODUCT VERSION :
java version "1.8.0_20-ea"
Java(TM) SE Runtime Environment (build 1.8.0_20-ea-b05)
Java HotSpot(TM) 64-Bit Server VM (build 25.20-b05, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Does not matter

EXTRA RELEVANT SYSTEM CONFIGURATION :
"-Xlint" default option used on javac

A DESCRIPTION OF THE PROBLEM :
In JDK 1.8.0 GA, if default -Xlint is enabled while compiling code, by default javac does not print warnings about "processing".

In JDK 1.8.0_20 (b05) it suddenly warns. The Lucene team has found this bug in Javac when running their builds with latest JDK 8 EA build.

REGRESSION. Last worked in version 8

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile code that uses Annotation, e.g. JUnit test cases with -Xlint (to enable "default" warnings.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
No warning wa sprinted in JDK 8 GA, so there should be none in u20.
ACTUAL -
[javac] Compiling 411 source files to C:\Users\JenkinsSlave\workspace\Lucene-Solr-4.x-Windows\lucene\build\core\classes\test
[javac] warning: No processor claimed any of these annotations: com.carrotsearch.randomizedtesting.annotations.ThreadLeakAction,org.junit.BeforeClass,org.apache.lucene.util.LuceneTestCase.SuppressCodecs,com.carrotsearch.randomizedtesting.annotations.TimeoutSuite,org.apache.lucene.util.LuceneTestCase.Slow,org.junit.runner.RunWith,com.carrotsearch.randomizedtesting.annotations.TestGroup,com.carrotsearch.randomizedtesting.annotations.ThreadLeakLingering,com.carrotsearch.randomizedtesting.annotations.Repeat,org.junit.After,com.carrotsearch.randomizedtesting.annotations.ThreadLeakFilters,com.carrotsearch.randomizedtesting.annotations.ThreadLeakScope,com.carrotsearch.randomizedtesting.annotations.Timeout,org.junit.ClassRule,org.junit.Before,org.junit.AfterClass,org.apache.lucene.util.junitcompat.TestGroupFiltering.Jira,org.apache.lucene.util.junitcompat.TestGroupFiltering.Foo,com.carrotsearch.randomizedtesting.annotations.ThreadLeakZombies,org.junit.Test,com.carrotsearch.randomizedtesting.annotations.ThreadLeakGroup,org.junit.Rule,com.carrotsearch.randomizedtesting.annotations.TestMethodProviders,org.junit.Ignore,com.carrotsearch.randomizedtesting.annotations.Seed,org.apache.lucene.util.junitcompat.TestGroupFiltering.Bar,org.apache.lucene.util.LuceneTestCase.Nightly

All those annotations are runtime only and are not intended to be run by annotation processors (like @org.junit.Test)

REPRODUCIBILITY :
This bug can be reproduced always.

CUSTOMER SUBMITTED WORKAROUND :
Pass: -Xlint:-processing