Here is the error from the build of jdk8:
/opt/jprt/products/P1/jdk1.7.0-latest/jdk1.7.0/bin/java -XX:-PrintVMOptions
  -XX:+UnlockDiagnosticVMOptions -XX:-LogVMOutput -client -Xmx512m -Xms512m
  -XX:PermSize=32m -XX:MaxPermSize=160m
  "-Xbootclasspath/p:/tmp/jprt/P1/185110.jcg-integrator/source/build/solaris-sparc/langtools/dist/bootstrap/lib/javac.jar"
  -jar /tmp/jprt/P1/185110.jcg-integrator/source/build/solaris-sparc/langtools/dist/bootstrap/lib/javac.jar
  -Xlint:-path -source 7 -target 7 -encoding ascii
  "-Xbootclasspath:/tmp/jprt/P1/185110.jcg-integrator/source/build/solaris-sparc/classes"
  -XDprocess.packages -proc:only \
-processor com.sun.tools.javac.sym.CreateSymbols \
-Acom.sun.tools.javac.sym.Jar=/tmp/jprt/P1/185110.jcg-integrator/source/build/solaris-sparc/tmp/rt-orig.jar
  \
-Acom.sun.tools.javac.sym.Dest=/tmp/jprt/P1/185110.jcg-integrator/source/build/solaris-sparc/symbols/META-INF/sym/rt.jar
  \
java.applet java.awt java.awt.color java.awt.datatransfer java.awt.dnd
  java.awt.event java.awt.font java.awt.geom java.awt.im java.awt.im.spi
  java.awt.image java.awt.image.renderable java.awt.print java.beans
  java.beans.beancontext java.io java.lang java.lang.annotation
  java.lang.instrument java.lang.invoke java.lang.management java.lang.ref
  java.lang.reflect java.math java.net java.nio java.nio.channels
  java.nio.channels.spi java.nio.charset java.nio.charset.spi java.nio.file
  java.nio.file.attribute java.nio.file.spi java.rmi java.rmi.activation
  java.rmi.dgc java.rmi.registry java.rmi.server java.security
  java.security.acl java.security.cert java.security.interfaces
  java.security.spec java.sql java.text java.text.spi java.util
  java.util.concurrent java.util.concurrent.atomic java.util.concurrent.locks
  java.util.jar java.util.logging java.util.prefs java.util.regex
  java.util.spi java.util.zip javax.accessibility javax.activation
  javax.activity javax.annotation javax.annotation.processing javax.crypto
  javax.crypto.interfaces javax.crypto.spec javax.imageio javax.imageio.event
  javax.imageio.metadata javax.imageio.plugins.jpeg javax.imageio.plugins.bmp
  javax.imageio.spi javax.imageio.stream javax.jws javax.jws.soap
  javax.lang.model javax.lang.model.element javax.lang.model.type
  javax.lang.model.util javax.management javax.management.loading
  javax.management.monitor javax.management.relation
  javax.management.openmbean javax.management.timer
  javax.management.modelmbean javax.management.remote
  javax.management.remote.rmi javax.naming javax.naming.directory
  javax.naming.event javax.naming.ldap javax.naming.spi javax.net
  javax.net.ssl javax.print javax.print.attribute
  javax.print.attribute.standard javax.print.event javax.rmi javax.rmi.CORBA
  javax.rmi.ssl javax.script javax.security.auth javax.security.auth.callback
  javax.security.auth.kerberos javax.security.auth.login
  javax.security.auth.spi javax.security.auth.x500 javax.security.cert
  javax.security.sasl javax.sound.sampled javax.sound.sampled.spi
  javax.sound.midi javax.sound.midi.spi javax.sql javax.sql.rowset
  javax.sql.rowset.serial javax.sql.rowset.spi javax.swing javax.swing.border
  javax.swing.colorchooser javax.swing.filechooser javax.swing.event
  javax.swing.table javax.swing.text javax.swing.text.html
  javax.swing.text.html.parser javax.swing.text.rtf javax.swing.tree
  javax.swing.undo javax.swing.plaf javax.swing.plaf.basic
  javax.swing.plaf.metal javax.swing.plaf.multi javax.swing.plaf.nimbus
  javax.swing.plaf.synth javax.tools javax.transaction javax.transaction.xa
  javax.xml.parsers javax.xml.bind javax.xml.bind.annotation
  javax.xml.bind.annotation.adapters javax.xml.bind.attachment
  javax.xml.bind.helpers javax.xml.bind.util javax.xml.soap javax.xml.ws
  javax.xml.ws.handler javax.xml.ws.handler.soap javax.xml.ws.http
  javax.xml.ws.soap javax.xml.ws.spi javax.xml.ws.spi.http
  javax.xml.ws.wsaddressing javax.xml.transform javax.xml.transform.sax
  javax.xml.transform.dom javax.xml.transform.stax javax.xml.transform.stream
  javax.xml javax.xml.crypto javax.xml.crypto.dom javax.xml.crypto.dsig
  javax.xml.crypto.dsig.dom javax.xml.crypto.dsig.keyinfo
  javax.xml.crypto.dsig.spec javax.xml.datatype javax.xml.validation
  javax.xml.namespace javax.xml.xpath javax.xml.stream
  javax.xml.stream.events javax.xml.stream.util org.ietf.jgss org.omg.CORBA
  org.omg.CORBA.DynAnyPackage org.omg.CORBA.ORBPackage
  org.omg.CORBA.TypeCodePackage org.omg.stub.java.rmi org.omg.CORBA.portable
  org.omg.CORBA_2_3 org.omg.CORBA_2_3.portable org.omg.CosNaming
  org.omg.CosNaming.NamingContextExtPackage
  org.omg.CosNaming.NamingContextPackage org.omg.SendingContext
  org.omg.PortableServer org.omg.PortableServer.CurrentPackage
  org.omg.PortableServer.POAPackage org.omg.PortableServer.POAManagerPackage
  org.omg.PortableServer.ServantLocatorPackage
  org.omg.PortableServer.portable org.omg.PortableInterceptor
  org.omg.PortableInterceptor.ORBInitInfoPackage org.omg.Messaging
  org.omg.IOP org.omg.IOP.CodecFactoryPackage org.omg.IOP.CodecPackage
  org.omg.Dynamic org.omg.DynamicAny org.omg.DynamicAny.DynAnyPackage
  org.omg.DynamicAny.DynAnyFactoryPackage org.w3c.dom org.w3c.dom.events
  org.w3c.dom.bootstrap org.w3c.dom.ls org.xml.sax org.xml.sax.ext
  org.xml.sax.helpers com.sun.java.browser.dom org.w3c.dom
  org.w3c.dom.bootstrap org.w3c.dom.ls org.w3c.dom.ranges
  org.w3c.dom.traversal org.w3c.dom.html org.w3c.dom.stylesheets
  org.w3c.dom.css org.w3c.dom.events org.w3c.dom.views com.sun.management
  com.sun.security.auth com.sun.security.auth.callback
  com.sun.security.auth.login com.sun.security.auth.module
  com.sun.security.jgss com.sun.nio.file com.sun.net.ssl
  com.sun.net.httpserver com.sun.net.httpserver.spi javax.smartcardio
  com.sun.nio.sctp com.sun.java.swing.plaf.windows
  com.sun.java.swing.plaf.motif com.sun.java.swing.plaf.gtk
  com.sun.servicetag com.oracle.net com.oracle.nio
error: Collection is empty
1 error
make[2]: *** [initial-image-jdk] Error 1