I'm trying to build icedtea-7 on an ARM Gentoo system (Pandaboard ES) but it fails. I have gcj-jdk-4.8.2 and gcc-4.8.2 with gcj support compiled in. icedtea-6 builds fine but I need icedtea-7. Does anyone know how to get this to build on ARM? '/var/tmp/portage/dev-java/icedtea-7.2.4.3/work/icedtea-2.4.3/tz.properties' -> '/var/tmp/portage/dev-java/icedtea-7.2.4.3/work/icedtea-2.4.3/openjdk.build-boot/j2sdk-image/jre/lib/tz.properties' touch stamps/add-tzdata-support-boot.stamp mkdir -p /var/tmp/portage/dev-java/icedtea-7.2.4.3/work/icedtea-2.4.3/cryptocheck.build /var/tmp/portage/dev-java/icedtea-7.2.4.3/work/icedtea-2.4.3/bootstrap/jdk1.6.0/bin/javac -g -encoding utf-8 -source 7 -target 7 \ -d /var/tmp/portage/dev-java/icedtea-7.2.4.3/work/icedtea-2.4.3/cryptocheck.build ./TestCryptoLevel.java Annotation processing got disabled, since it requires a 1.6 compliant JVM mkdir -p stamps touch stamps/cryptocheck.stamp if [ -e /var/tmp/portage/dev-java/icedtea-7.2.4.3/work/icedtea-2.4.3/openjdk.build-boot/j2sdk-image/bin/java ] ; then \ /var/tmp/portage/dev-java/icedtea-7.2.4.3/work/icedtea-2.4.3/openjdk.build-boot/j2sdk-image/bin/java -cp /var/tmp/portage/dev-java/icedtea-7.2.4.3/work/icedtea-2.4.3/cryptocheck.build TestCryptoLevel ; \ fi Exception in thread "main" java.lang.NullPointerException at java.lang.Throwable.fillInStackTrace(Throwable.java:783) at java.lang.Throwable.<init>(Throwable.java:250) at java.lang.Exception.<init>(Exception.java:54) at java.lang.RuntimeException.<init>(RuntimeException.java:51) at java.lang.NullPointerException.<init>(NullPointerException.java:60) at TestCryptoLevel.main(TestCryptoLevel.java:46) make: *** [stamps/check-crypto-boot.stamp] Error 1 - Grant