java is required for doxygen, e.g. on wily

scripts/bootstrap.sh

@@ -1102,7 +1102,7 @@ if testtag AX_USE_DEBIAN_PACKAGING; then
 
  -- @PACKAGER@  @BUILD_DATE@
 EOF
-    BUILD_DEPENDS="debhelper, ${VCSDEPENDS} pkg-config, automake, libtool, autotools-dev, pandoc, lsb-release, fakeroot, $(if testtag AX_USE_DOXYGEN; then echo -n ", doxygen, graphviz, mscgen"; fi; if testtag AX_USE_PERLDOC; then echo -n ", libpod-tree-perl"; fi; if testtag AX_USE_PLANTUML; then echo -n ", default-jre-headless|default-jre"; fi; if testtag AX_USE_CPPUNIT; then echo -n ", libcppunit-dev"; fi; if testtag AX_CXX_QT || testtag AX_CHECK_QT AX_REQUIRE_QT; then echo -n ", qt5-default | libqt4-core | libqtcore4, qt5-qmake | qt4-qmake, qtbase5-dev | libqt4-dev, qtbase5-dev-tools | qt4-dev-tools, qttools5-dev-tools | qt4-dev-tools, qttools5-dev-tools | qt4-dev-tools"; fi)"
+    BUILD_DEPENDS="debhelper, ${VCSDEPENDS} pkg-config, automake, libtool, autotools-dev, pandoc, lsb-release, fakeroot, default-jre-headless|default-jre, $(if testtag AX_USE_DOXYGEN; then echo -n ", doxygen, graphviz, mscgen, default-jre-headless|default-jre"; fi; if testtag AX_USE_PERLDOC; then echo -n ", libpod-tree-perl"; fi; if testtag AX_USE_CPPUNIT; then echo -n ", libcppunit-dev"; fi; if testtag AX_CXX_QT || testtag AX_CHECK_QT AX_REQUIRE_QT; then echo -n ", qt5-default | libqt4-core | libqtcore4, qt5-qmake | qt4-qmake, qtbase5-dev | libqt4-dev, qtbase5-dev-tools | qt4-dev-tools, qttools5-dev-tools | qt4-dev-tools, qttools5-dev-tools | qt4-dev-tools"; fi)"
     to debian/control.in <<EOF
 Source: @PACKAGE_NAME@
 Priority: extra
@@ -1175,14 +1175,11 @@ Source0: %{name}-%{version}.tar.gz
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root
 BuildRequires: gnupg, ${VCSDEPENDS} make, automake, autoconf, rpm-build$(
     if testtag AX_USE_DOXYGEN; then
-      echo -n ", doxygen";
+      echo -n ", doxygen, default-jre-headless";
     fi
     if testtag AX_USE_PERLDOC; then
       echo -n ", libpod-tree-perl";
     fi
-    if testtag AX_USE_PLANTUML; then
-      echo -n ", default-jre-headless";
-    fi
 )
 %if 0%{?fedora} != 20
 $(if testtag AX_USE_DOXYGEN; then echo -n "BuildRequires: graphviz"; fi)