SHORT SUMMARY:
 .
The following may not be a bug but is a change in behavior between
JDK6_MAIN_LINUX.X64_100421.1.6.0.20.B03 and
JDK6_MAIN_LINUX.X64_111207.1.6.0.31.B02 that is causing build problems for
JAVAVM labels that until now have been using the former and are trying to
move to the latter.  So if it is not a bug, please explain how the
situation
in the test case could best be resolved to allow a build that encounters
such
a scenario to succeed.
 .
Let JDK6 refer to some JDK6 distribution with sources from it available.
.
Create directory SDIR (eg /tmp/s) containing copies of
.
java/lang/System.java
sun/nio/cs/StreamEncoder.java
.
from JDK6.  Modify this StreamEncoder.java to contain
.
public static void foo(){}
.
Modify this System.java to add the line
.
        sun.nio.cs.StreamEncoder.foo();
.
to some method, such as as the first line in initializeSystemClass.
.
Create BDIR/foo.jar (eg /tmp/foo.jar) containing
sun/nio/cs/StreamEncoder.class
extracted from JDK6's rt.jar.
.
Use touch -t to set the timestamp of SDIR/sun/nio/cs/StreamEncoder.java to
a
value earlier than that on StreamEncoder.class in foo.jar.
.
Create an empty directory CDIR (eg /tmp/c)
.
Let JDKH be the path to a JDK home based on
JDK6_MAIN_LINUX.X64_111207.1.6.0.31.B02
for example (until this label ages out)
.
/ade_autofs/ade_base/JDK6_MAIN_LINUX.X64.rdd/111207.1.6.0.31.B02/jdk6
.
Then
.
cd SDIR
JDKH/bin/javac -bootclasspath BDIR/foo.jar:JDKH/jre/lib/rt.jar -classpath .
-d CDIR java/lang/System.java
.
will result in
.
java/lang/System.java:....: cannot find symbol
symbol  : method foo()
location: class sun.nio.cs.StreamEncoder
        sun.nio.cs.StreamEncoder.foo();
.
whereas doing the same with JDKH set to a JDK home based on
JDK6_MAIN_LINUX.X64_100421.1.6.0.20.B03 (which no longer exists itself on
/ade_autofs but is still present for now in all RDBMS labels up to 120117
and
JAVAVM labels up to 120118, so ...) for example
 .
/ade_autofs/ade_base2/JAVAVM_MAIN_LINUX.X64.rdd/120118/jdk6
 .
 completes without error.
 .
Note that the behavior of getting the error did not start with
JDK6_MAIN_LINUX.X64_100421.1.6.0.20.B03 but actually holds for all JDK6
labels still present on /ade_autofs/ade_base, the earliest being
 /ade_autofs/ade_base/JDK6_MAIN_LINUX.X64.rdd/100930.1.6.0.21.B50
.
INDICATORS:
COUNTER INDICATORS:
TRIGGERS:
KNOWN WORKAROUND:
PRESENT SINCE:
HOW TO VERIFY:
NOTES FOR SE:
REGRESSION: