If the sun/nio/cs/ext classes are excluded from rt.jar (like they should be) and only in charsets.jar, the CreateSymbols part of the jdk image creation fails when doing a control build:


error: sun.nio.cs.ext.DoubleByte.Encoder: class file for sun.nio.cs.ext.DoubleByte not found
error: class file for sun.nio.cs.ext.DoubleByte not found 1 error
gmake[3]: *** [initial-image-jdk] Error 1
gmake[3]: Leaving directory `/tmp/jprt/P1/B/153854.ohair/source/jdk/make'
gmake[2]: *** [jdk-build] Error 2

Some how charsets.jar is not in the classpath (never was here), and now it is needed. Either this is just a case of needing to add another jar to the classpath, or a new dependency has been created that we might not want.