* Package:    dev-java/concurrent-util-1.3.4-r1
 * Repository: gentoo
 * Maintainer: java@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux userland_GNU
 * FEATURES:   distcc preserve-libs sandbox userpriv usersandbox
 * Using: oracle-jdk-bin-1.8
>>> Unpacking source...
>>> Unpacking gentoo-concurrent-util-1.3.4.tar.bz2 to /var/tmp/portage/dev-java/concurrent-util-1.3.4-r1/work
>>> Source unpacked in /var/tmp/portage/dev-java/concurrent-util-1.3.4-r1/work
>>> Compiling source in /var/tmp/portage/dev-java/concurrent-util-1.3.4-r1/work/concurrent-util-1.3.4 ...
Rewriting attributes
Rewriting ./build.xml
 * Disabling all optional ANT_TASKS
Buildfile: /var/tmp/portage/dev-java/concurrent-util-1.3.4-r1/work/concurrent-util-1.3.4/build.xml

init:
    [mkdir] Created dir: /var/tmp/portage/dev-java/concurrent-util-1.3.4-r1/work/concurrent-util-1.3.4/build
    [mkdir] Created dir: /var/tmp/portage/dev-java/concurrent-util-1.3.4-r1/work/concurrent-util-1.3.4/build/classes
    [mkdir] Created dir: /var/tmp/portage/dev-java/concurrent-util-1.3.4-r1/work/concurrent-util-1.3.4/build/demo
    [mkdir] Created dir: /var/tmp/portage/dev-java/concurrent-util-1.3.4-r1/work/concurrent-util-1.3.4/build/javadoc
    [mkdir] Created dir: /var/tmp/portage/dev-java/concurrent-util-1.3.4-r1/work/concurrent-util-1.3.4/build/lib

compile:
    [javac] Compiling 92 source files to /var/tmp/portage/dev-java/concurrent-util-1.3.4-r1/work/concurrent-util-1.3.4/build/classes
    [javac] /var/tmp/portage/dev-java/concurrent-util-1.3.4-r1/work/concurrent-util-1.3.4/src/java/EDU/oswego/cs/dl/util/concurrent/ConcurrentHashMap.java:678: error: remove(Object,Object) in ConcurrentHashMap cannot implement remove(Object,Object) in Map
    [javac]   protected Object remove(Object key, Object value) {
    [javac]                    ^
    [javac]   attempting to assign weaker access privileges; was public
    [javac] 1 error

BUILD FAILED
/var/tmp/portage/dev-java/concurrent-util-1.3.4-r1/work/concurrent-util-1.3.4/build.xml:25: Compile failed; see the compiler error output for details.

Total time: 2 seconds
 * ERROR: dev-java/concurrent-util-1.3.4-r1::gentoo failed (compile phase):
 *   eant failed
 * 
 * Call stack:
 *     ebuild.sh, line   93:  Called src_compile
 *   environment, line 3887:  Called java-pkg-2_src_compile
 *   environment, line 1813:  Called eant 'jar' '-f' 'build.xml'
 *   environment, line  596:  Called die
 * The specific snippet of code:
 *       ant ${antflags} "${@}" || die "eant failed"
 * 
 * If you need support, post the output of `emerge --info '=dev-java/concurrent-util-1.3.4-r1::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=dev-java/concurrent-util-1.3.4-r1::gentoo'`.
!!! When you file a bug report, please include the following information:
GENTOO_VM=oracle-jdk-bin-1.8  CLASSPATH="" JAVA_HOME="/opt/oracle-jdk-bin-1.8.0.45"
JAVACFLAGS="-source 1.2 -target 1.2" COMPILER="javac"
and of course, the output of emerge --info =concurrent-util-1.3.4
 * The complete build log is located at '/var/tmp/portage/dev-java/concurrent-util-1.3.4-r1/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/dev-java/concurrent-util-1.3.4-r1/temp/environment'.
 * Working directory: '/var/tmp/portage/dev-java/concurrent-util-1.3.4-r1/work/concurrent-util-1.3.4'
 * S: '/var/tmp/portage/dev-java/concurrent-util-1.3.4-r1/work/concurrent-util-1.3.4'