There's a typo in the ibm-jre-bin 1.4.2 ebuild; in the section where it adds a symlink for a mozilla plugin, it reads if useq mozilla && !useq ppc; then instead of if useq mozilla && ! useq ppc; then resulting in a syntax error and a failure to install the java plugin. Reproducible: Always Steps to Reproduce:
fixed in cvs, thanks for reporting.