Preverification failed with error code 1. BUILD FAILED

Question

Hallo Oracle,
Am learning my first J2me application and when i build it am getting this error. can some one help me understand what it means
Created dir: C:\Users\Dell\Documents\NetBeansProjects\watsdownapp\build\preverifysrc
Copying 1957 files to C:\Users\Dell\Documents\NetBeansProjects\watsdownapp\build\preverifysrc
Created dir: C:\Users\Dell\Documents\NetBeansProjects\watsdownapp\build\preverified
Preverifying 1957 file(s) into C:\Users\Dell\Documents\NetBeansProjects\watsdownapp\build\preverified directory.
Error preverifying class com.sun.activation.registries.MailcapFile
    VERIFIER ERROR com/sun/activation/registries/MailcapFile
.<init>(Ljava/lang/String;)V:
Cannot find class java/util/Map
C:\Users\Dell\Documents\NetBeansProjects\watsdownapp\nbproject\build-impl.xml:431: Preverification failed with error code 1.
BUILD FAILED (total time: 25 seconds)
this is the contents of build-impx.xml
<?xml version="1.0" encoding="UTF-8"?>
<!-- *** GENERATED FROM project.xml - DO NOT EDIT *** -->
<project name="watsdownapp-impl" default="jar" basedir="..">
    <!--load-properties-->
    <target name="pre-load-properties">
        <property file="nbproject/private/private.properties"/>
        <property name="user.properties.file" location="${netbeans.user}/build.properties"/>
        <available property="user.properties.file.exists" file="${user.properties.file}"/>
    </target>
    <target name="exists.config.active" unless="config.active">
        <echo level="warning" message="Active configuration (config.active property) is not set - using default."/>
        <property value="" name="config.active"/>
    </target>
    <target name="exists.netbeans.user" unless="netbeans.user">
        <echo level="warning" message="NetBeans IDE user directory (netbeans.user property) is not set. By specifying this property many properties required by the project will be automatically evaluated (e.g.: ant-ext library home, ...). You could also open this project in the NetBeans IDE - in this case this property would be set automatically."/>
    </target>
    <target name="exists.user.properties.file" unless="user.properties.file.exists">
        <echo level="warning" message="User properties file (user.properties.file) property is not set. By specifying this property many properties required by the project will be automatically evaluated (e.g.: libraries, platforms, ...)."/>
    </target>
    <target name="load-properties" depends="pre-load-properties,exists.config.active,exists.netbeans.user,exists.user.properties.file">
        <loadproperties srcfile="nbproject/project.properties">
            <filterchain>
                <containsregex pattern="^configs\.${config.active}\.(.*)" replace="\1"/>
                <concatfilter prepend="nbproject/project.properties"/>
                <containsregex pattern="^platform.active=|^deployment.method=|^deployment.instance="/>
            </filterchain>
        </loadproperties>
        <property name="deployment.instance" value="default"/>
        <loadproperties srcfile="${user.properties.file}">
            <filterchain>
                <replaceregex pattern="^platforms\.${platform.active}\." replace="platform."/>
                <replaceregex pattern="^deployment\.${deployment.method}\.scriptfile=" replace="deployment.scriptfile="/>
                <replaceregex pattern="^deployments\.${deployment.method}\.${deployment.instance}\.([^=]+)=" replace="\1="/>
            </filterchain>
        </loadproperties>
        <loadproperties srcfile="nbproject/project.properties">
            <filterchain>
                <containsregex pattern="^configs\.${config.active}\.(.*)" replace="\1"/>
                <concatfilter prepend="nbproject/project.properties"/>
            </filterchain>
        </loadproperties>
    </target>
    <!--basic-init-->
    <target name="exists.platform.active" unless="platform.active">
        <echo level="warning" message="Active platform (platform.active property) in not set. If you set this and user.properties.file property, many properties required by the project will be automatically evaluated (e.g.: platform home, platform classpath, ...)."/>
    </target>
    <target name="exists.platform.configuration" unless="platform.configuration">
        <echo level="warning" message="Platform configuration (platform.configuration) is not set. Using default (CLDC-1.0) configuration."/>
        <property name="platform.configuration" value="CLDC-1.0"/>
    </target>
    <target name="exists.platform.profile" unless="platform.profile">
        <echo level="warning" message="Platform profile (platform.profile) is not set. Using default (MIDP-1.0) profile."/>
        <property name="platform.profile" value="MIDP-1.0"/>
    </target>
    <target name="basic-init" depends="exists.platform.active,exists.platform.configuration,exists.platform.profile">
        <fail unless="libs.j2me_ant_ext.classpath">Classpath to J2ME Ant extension library (libs.j2me_ant_ext.classpath property) is not set. For example: location of mobility/modules/org-netbeans-mobility-antext.jar file in the IDE installation directory.</fail>
        <fail unless="platform.home">Platform home (platform.home property) is not set. Value of this property should be ${platform.active.description} emulator home directory location.</fail>
        <fail unless="platform.bootclasspath">Platform boot classpath (platform.bootclasspath property) is not set. Value of this property should be ${platform.active.description} emulator boot classpath containing all J2ME classes provided by emulator.</fail>
        <fail unless="src.dir">Must set src.dir</fail>
        <fail unless="build.dir">Must set build.dir</fail>
        <fail unless="dist.dir">Must set dist.dir</fail>
        <fail unless="dist.jar">Must set dist.jar</fail>
        <property name="javac.source" value="1.3"/>
        <property name="javac.target" value="1.1"/>
        <property name="javac.encoding" value="${file.encoding}"/>
        <property name="deployment.number" value="0.0.1"/>
        <property name="deployment.counter" value="000002"/>
        <condition property="no.deps">
            <istrue value="${no.dependencies}"/>
        </condition>
        <condition property="no.preprocess">
            <isfalse value="${use.preprocessor}"/>
        </condition>
        <condition property="no.javadoc.preview">
            <isfalse value="${javadoc.preview}"/>
        </condition>
        <condition property="filter.excludes.evaluated" value="${filter.excludes},${filter.more.excludes},**/*Test.java,**/test,**/test/**">
            <istrue value="${filter.exclude.tests}"/>
        </condition>
        <property name="filter.excludes.evaluated" value="${filter.excludes},${filter.more.excludes}"/>
        <condition property="deployment.do.override.jarurl" value="">
            <istrue value="${deployment.override.jarurl}"/>
        </condition>
        <condition property="config.active.name" value="DefaultConfiguration">
            <length string="${config.active}" trim="true" length="0"/>
        </condition>
        <property name="config.active.name" value="${config.active}"/>
        <taskdef resource="org/netbeans/mobility/antext/defs.properties">
            <classpath>
                <pathelement path="${libs.j2me_ant_ext.classpath}"/>
            </classpath>
        </taskdef>
        <condition property="skip.deployment">
            <equals arg1="${deployment.method}" arg2="NONE" casesensitive="false" trim="true"/>
        </condition>
        <condition property="app-version.autoincrement.trigger">
            <istrue value="${app-version.autoincrement}"/>
        </condition>
        <condition property="debug.timeout" value="30000">
            <or>
                <equals arg1="${debugger.timeout}" arg2="" trim="true"/>
                <not>
                    <isset property="debugger.timeout"/>
                </not>
            </or>
        </condition>
        <property name="debug.timeout" value="${debugger.timeout}"/>
        <nb-overrideproperty name="buildsystem.baton" value="${src.dir}"/>
    </target>
    <!--cldc-init-->
    <target name="cldc-pre-init">
        <condition property="cldc-platform.trigger">
            <equals arg1="CLDC" arg2="${platform.trigger}" casesensitive="false"/>
        </condition>
    </target>
    <target name="cldc-init" depends="cldc-pre-init" if="cldc-platform.trigger">
        <property name="preverify.sources.dir" location="${build.dir}/preverifysrc"/>
        <property name="manifest.build.file" location="${build.dir}/manifest.mf"/>
        <property name="platform.device" value=""/>
        <property name="dist.jad.url" value="file://"/>
        <property name="run.cmd.options" value=""/>
        <condition property="evaluated.run.security.domain" value="">
            <isfalse value="${run.use.security.domain}"/>
        </condition>
        <property name="evaluated.run.security.domain" value="${run.security.domain}"/>
        <condition property="override.jarurl.trigger">
            <and>
                <istrue value="${cldc-platform.trigger}"/>
                <istrue value="${deployment.override.jarurl}"/>
            </and>
        </condition>
        <property name="deployment.jad" location="${dist.dir}/${dist.jad}"/>
        <property name="deployment.jar" location="${dist.dir}/${dist.jar}"/>
        <property name="deployment.dir" location="${dist.dir}"/>
        <patternset id="deployment.patternset">
            <include name="${dist.jad}"/>
            <include name="${dist.jar}"/>
        </patternset>
    </target>
    <!--cdc-init-->
    <target name="cdc-init">
        <condition property="cdc-platform.trigger">
            <equals arg1="CDC" arg2="${platform.trigger}" casesensitive="false"/>
        </condition>
        <available file="${manifest.file}" property="manifest.available"/>
        <condition property="main.class.applet">
            <equals arg1="${main.class.class}" arg2="applet" casesensitive="false"/>
        </condition>
        <condition property="main.class.xlet">
            <equals arg1="${main.class.class}" arg2="xlet" casesensitive="false"/>
        </condition>
        <condition property="manifest.available+main.class+fat.jar">
            <and>
                <isset property="manifest.available"/>
                <isset property="main.class"/>
                <istrue value="${platform.fat.jar}"/>
                <not>
                    <equals arg1="${main.class}" arg2="" trim="true"/>
                </not>
            </and>
        </condition>
        <condition property="manifest.available+main.class">
            <and>
                <isset property="manifest.available"/>
                <isset property="main.class"/>
                <isfalse value="${platform.fat.jar}"/>
                <not>
                    <equals arg1="${main.class}" arg2="" trim="true"/>
                </not>
            </and>
        </condition>
        <condition property="application.version.invalid" value="true">
            <equals arg1="${deployment.number}" arg2="" trim="true"/>
        </condition>
        <fail if="application.version.invalid" message="Property deployment.number must not be empty and must contain version in format %d.%d.%d!"/>
        <condition property="sign.jar.trigger" value="true">
            <and>
                <isset property="cdc-platform.trigger"/>
                <istrue value="${sign.enabled}"/>
            </and>
        </condition>
    </target>
    <!--semc-init-->
    <target name="semc-pre-init" if="cdc-platform.trigger">
        <condition property="semc-platform.trigger">
            <equals arg1="semc" arg2="${platform.type}" casesensitive="false"/>
        </condition>
    </target>
    <target name="semc-init" depends="semc-pre-init" if="semc-platform.trigger">
        <condition property="semc.icon.invalid" value="true">
            <or>
                <contains string="${semc.application.icon}" substring="$${"/>
                <equals arg1="${semc.application.icon}" arg2="" trim="true"/>
            </or>
        </condition>
        <condition property="no.certificateorkey" value="true">
            <or>
                <isset property="no.application.uid"/>
                <equals arg1="${semc.certificate.path}" arg2="" trim="true"/>
                <contains string="${semc.certificate.path}" substring="$${semc.certificate.path"/>
                <equals arg1="${semc.private.key.path}" arg2="" trim="true"/>
                <contains string="${semc.private.key.path}" substring="$${semc.private.key.path"/>
            </or>
        </condition>
        <property name="j9.dist" location="${build.dir}/j9/${semc.application.uid}.j9"/>
        <taskdef resource="org/netbeans/modules/j2me/cdc/project/defs.properties">
            <classpath>
                <pathelement path="${libs.cdc-ant-utils.classpath}"/>
            </classpath>
        </taskdef>
        <taskdef resource="org/netbeans/modules/j2me/cdc/project/semc/defs.properties">
            <classpath>
                <pathelement path="${libs.semc-ant-utils.classpath}"/>
            </classpath>
        </taskdef>
        <property name="deployment.dir" location="${dist.dir}"/>
        <patternset id="deployment.patternset">
            <include name="*.sis"/>
            <include name="*.SIS"/>
        </patternset>
    </target>
    <!--savaje-init-->
    <target name="savaje-pre-init" if="cdc-platform.trigger">
        <condition property="savaje-platform.trigger">
            <equals arg1="savaje" arg2="${platform.type}" casesensitive="false"/>
        </condition>
    </target>
    <target name="savaje-init" depends="savaje-pre-init" if="savaje-platform.trigger">
        <property name="savaje.application.uid" value="TBD"/>
        <condition property="savaje.bundle.base.invalid" value="true">
            <or>
                <equals arg1="${savaje.bundle.base}" arg2="" trim="true"/>
                <contains string="${savaje.bundle.base}" substring="$${savaje.bundle.base"/>
            </or>
        </condition>
        <condition property="savaje.unsupported.main" value="true">
            <or>
                <equals arg1="${main.class.applet}" arg2="true"/>
            </or>
        </condition>
        <condition property="savaje.icon.invalid" value="true">
            <or>
                <isset property="no.application.uid"/>
                <contains string="${savaje.application.icon}" substring="$${"/>
                <equals arg1="${savaje.application.icon}" arg2="" trim="true"/>
            </or>
        </condition>
        <property name="jnlp.dist" value="${build.dir}/jnlp/bundle.jnlp"/>
        <property name="deployment.dir" location="${dist.dir}"/>
        <patternset id="deployment.patternset">
            <include name="bundle.jnlp"/>
            <include name="bundle.policy"/>
            <include name="lib/*"/>
        </patternset>
    </target>
    <!--sjmc-init-->
    <target name="sjmc-pre-init" if="cdc-platform.trigger">
        <condition property="sjmc-platform.trigger">
            <equals arg1="sjmc" arg2="${platform.type}" casesensitive="false"/>
        </condition>
    </target>
    <target name="sjmc-init" depends="sjmc-pre-init" if="sjmc-platform.trigger"/>
    <!--ojec-init-->
    <target name="ojec-pre-init" if="cdc-platform.trigger">
        <condition property="ojec-platform.trigger">
            <equals arg1="ojec" arg2="${platform.type}" casesensitive="false"/>
        </condition>
    </target>
    <target name="ojec-init" depends="ojec-pre-init" if="ojec-platform.trigger"/>
    <!--cdc-hi-init-->
    <target name="cdc-hi-pre-init" if="cdc-platform.trigger">
        <condition property="cdc-hi-platform.trigger">
            <equals arg1="cdc-hi" arg2="${platform.type}" casesensitive="false"/>
        </condition>
    </target>
    <target name="cdc-hi-init" depends="cdc-hi-pre-init" if="cdc-hi-platform.trigger"/>
    <!--nokiaS80-init-->
    <target name="nokiaS80-pre-init" if="cdc-platform.trigger">
        <condition property="nokiaS80-platform.trigger">
            <equals arg1="nokiaS80" arg2="${platform.type}" casesensitive="false"/>
        </condition>
    </target>
    <target name="nokiaS80-init" depends="nokiaS80-pre-init" if="nokiaS80-platform.trigger">
        <property name="j9.dist" location="${build.dir}/j9/NOKIA.j9"/>
        <property name="manifest.build.file" location="${build.dir}/manifest.mf"/>
        <condition property="nokia.icon.invalid">
            <or>
                <contains string="${nokiaS80.application.icon}" substring="$${"/>
                <equals arg1="${nokiaS80.application.icon}" arg2="" trim="true"/>
            </or>
        </condition>
        <property name="deployment.dir" location="${dist.dir}"/>
        <patternset id="deployment.patternset">
            <include name="${dist.jar}"/>
        </patternset>
    </target>
    <!--init-->
    <target name="pre-init"/>
    <target name="post-init"/>
    <target name="init" depends="pre-init,load-properties,basic-init,cldc-init,cdc-init,semc-init,savaje-init,sjmc-init,ojec-init,cdc-hi-init,nokiaS80-init,post-init"/>
    <!--conditional clean-->
    <target name="conditional-clean-init">
        <uptodate property="no.clean.before.build" targetfile="${build.dir}/.timestamp">
            <srcfiles dir="nbproject">
                <include name="project.properties"/>
                <include name="build-impl.xml"/>
            </srcfiles>
        </uptodate>
    </target>
    <target name="conditional-clean" depends="init,conditional-clean-init" unless="no.clean.before.build" description="Clean project in case its meta information has changed.">
        <antcall target="do-clean" inheritall="true" inheritrefs="true"/>
    </target>
    <!--deps-jar-->
    <target name="deps-jar" depends="conditional-clean" unless="no.deps"/>
    <!--preprocess-->
    <target name="pre-preprocess"/>
    <target name="do-preprocess" unless="no.preprocess">
        <fail unless="preprocessed.dir">Must set preprocessed.dir</fail>
        <property name="abilities" value=""/>
        <property name="debug.level" value="debug"/>
        <mkdir dir="${preprocessed.dir}"/>
        <echo message="ignore me" file="${build.dir}/.timestamp"/>
        <nb-prep destdir="${preprocessed.dir}" preprocessfor="${config.active.name},${abilities},DebugLevel=${debug.level}" encoding="${javac.encoding}">
            <fileset dir="${buildsystem.baton}" defaultexcludes="${filter.use.standard}" excludes="${filter.excludes.evaluated}"/>
        </nb-prep>
        <copy todir="${preprocessed.dir}">
            <fileset dir="${buildsystem.baton}" defaultexcludes="${filter.use.standard}" excludes="${filter.excludes.evaluated},${build.classes.excludes}"/>
        </copy>
        <nb-overrideproperty name="buildsystem.baton" value="${preprocessed.dir}"/>
    </target>
    <target name="post-preprocess"/>
    <target name="preprocess" depends="deps-jar,pre-preprocess,do-preprocess,post-preprocess" description="Preprocess project sources."/>
    <!--compile-->
    <target name="pre-compile"/>
    <target name="do-compile">
        <fail unless="build.classes.dir">Must set build.classes.dir</fail>
        <mkdir dir="${build.classes.dir}"/>
        <javac includeantruntime="false" source="${javac.source}" target="${javac.target}" deprecation="${javac.deprecation}" optimize="${javac.optimize}" debug="${javac.debug}" destdir="${build.classes.dir}" srcdir="${buildsystem.baton}" bootclasspath="${platform.bootclasspath}" encoding="${javac.encoding}">
            <classpath>
                <path path="${libs.classpath}"/>
            </classpath>
        </javac>
        <copy todir="${build.classes.dir}">
            <fileset dir="${buildsystem.baton}" defaultexcludes="${filter.use.standard}" excludes="${filter.excludes.evaluated},${build.classes.excludes}"/>
        </copy>
        <nb-overrideproperty name="buildsystem.baton" value="${build.classes.dir}"/>
    </target>
    <target name="extract-libs" description="Extracts all bundled libraries.">
        <mkdir dir="${build.classes.dir}"/>
        <nb-extract dir="${build.classes.dir}" excludeManifest="true" classpath="${libs.classpath}" excludeclasspath="${extra.classpath}"/>
    </target>
    <target name="post-compile"/>
    <target name="compile" depends="preprocess,pre-compile,extract-libs,do-compile,post-compile" description="Compile project classes."/>
    <!--compile-single-->
    <target name="pre-compile-single"/>
    <target name="do-compile-single">
        <fail unless="javac.includes">Must select some files in the IDE or set javac.includes</fail>
        <mkdir dir="${build.classes.dir}"/>
        <javac includeantruntime="false" source="${javac.source}" target="${javac.target}" deprecation="${javac.deprecation}" optimize="${javac.optimize}" debug="${javac.debug}" srcdir="${buildsystem.baton}" destdir="${build.classes.dir}" bootclasspath="${platform.bootclasspath}" includes="${javac.includes}" encoding="${javac.encoding}">
            <classpath>
                <path path="${libs.classpath}"/>
            </classpath>
        </javac>
    </target>
    <target name="post-compile-single"/>
    <target name="compile-single" depends="preprocess,pre-compile-single,do-compile-single,post-compile-single" description="Compile selected project classes."/>
    <!--proguard-->
    <target name="proguard-init" description="Up-to-date check before obfuscation.">
        <property name="obfuscation.level" value="0"/>
        <condition property="no.obfusc">
            <or>
                <equals arg1="${obfuscation.level}" arg2="0"/>
                <uptodate targetfile="${obfuscator.destjar}">
                    <srcfiles dir="${buildsystem.baton}"/>
                </uptodate>
            </or>
        </condition>
        <uptodate property="obfuscation.up-to-date" targetfile="${obfuscator.destjar}">
            <srcfiles dir="${buildsystem.baton}"/>
        </uptodate>
    </target>
    <target name="skip-obfuscation" depends="proguard-init" if="obfuscation.up-to-date">
        <fail unless="obfuscated.classes.dir">Must set obfuscated.classes.dir</fail>
        <nb-overrideproperty name="buildsystem.baton" value="${obfuscated.classes.dir}"/>
    </target>
    <target name="proguard" depends="skip-obfuscation" description="Obfuscate project classes." unless="no.obfusc">
        <fail unless="obfuscated.classes.dir">Must set obfuscated.classes.dir</fail>
        <fail unless="obfuscator.srcjar">Must set obfuscator.srcjar</fail>
        <fail unless="obfuscator.destjar">Must set obfuscator.destjar</fail>
        <property name="obfuscator.classpath" value=""/>
        <dirname file="${obfuscator.srcjar}" property="obfuscator.srcjar.dir"/>
        <dirname file="${obfuscator.destjar}" property="obfuscator.destjar.dir"/>
        <mkdir dir="${obfuscator.srcjar.dir}"/>
        <mkdir dir="${obfuscator.destjar.dir}"/>
        <jar jarfile="${obfuscator.srcjar}" basedir="${buildsystem.baton}"/>
        <property name="obfuscation.custom" value=""/>
        <nb-obfuscate srcjar="${obfuscator.srcjar}" destjar="${obfuscator.destjar}" obfuscatorclasspath="${obfuscator.classpath}" classpath="${platform.bootclasspath}:${extra.classpath}" obfuscationLevel="${obfuscation.level}" extraScript="${obfuscation.custom}"/>
        <mkdir dir="${obfuscated.classes.dir}"/>
        <unjar src="${obfuscator.destjar}" dest="${obfuscated.classes.dir}"/>
        <nb-overrideproperty name="buildsystem.baton" value="${obfuscated.classes.dir}"/>
    </target>
    <!--obfuscate-->
    <target name="pre-obfuscate"/>
    <target name="post-obfuscate"/>
    <target name="obfuscate" depends="compile,pre-obfuscate,proguard,post-obfuscate" description="Obfuscate project classes."/>
    <!--lwuit-build-->
    <import file="lwuit.xml" optional="true"/>
    <target name="-lwuit-check">
        <condition property="lwuit.allowed">
            <and>
                <available file="nbproject/lwuit.xml"/>
                <isset property="is.mesdk_lwuit"/>
            </and>
        </condition>
    </target>
    <target name="-pre-lwuit-build" depends="-lwuit-check" if="lwuit.allowed"/>
    <target name="-lwuit-build" depends="-lwuit-check" if="lwuit.allowed">
        <antcall target="lwuit_build"/>
    </target>
    <target name="-post-lwuit-build" depends="-lwuit-check" if="lwuit.allowed"/>
    <target name="lwuit-build" depends="-lwuit-check,-pre-lwuit-build, -lwuit-build, -post-lwuit-build" if="lwuit.allowed"/>
    <!--preverify-->
    <target name="pre-preverify"/>
    <target name="do-preverify" if="cldc-platform.trigger">
        <fail unless="preverify.classes.dir">Must set preverify.classes.dir</fail>
        <mkdir dir="${preverify.sources.dir}"/>
        <copy todir="${preverify.sources.dir}">
            <fileset dir="${buildsystem.baton}" includes="**/*.class"/>
        </copy>
        <mkdir dir="${preverify.classes.dir}"/>
        <nb-preverify srcdir="${preverify.sources.dir}" destdir="${preverify.classes.dir}" classpath="${platform.bootclasspath}:${extra.classpath}" configuration="${platform.configuration}" platformhome="${platform.home}" platformtype="${platform.type}" commandline="${platform.preverifycommandline}"/>
        <copy todir="${preverify.classes.dir}">
            <fileset dir="${buildsystem.baton}" defaultexcludes="${filter.use.standard}" excludes="${filter.excludes.evaluated},${build.classes.excludes}"/>
        </copy>
        <nb-overrideproperty name="buildsystem.baton" value="${preverify.classes.dir}"/>
    </target>
    <target name="post-preverify"/>
    <target name="preverify" depends="obfuscate,lwuit-build,pre-preverify,do-preverify,post-preverify" description="Preverify project classes."/>
    <!--set-password-->
    <target name="set-password-init">
        <property name="sign.enabled" value="false"/>
        <condition property="skip-sign-keystore-password-input">
            <or>
                <isfalse value="${sign.enabled}"/>
                <and>
                    <isset property="sign.keystore"/>
                    <isset property="sign.keystore.password"/>
                    <not>
                        <equals arg1="${sign.keystore}" arg2="" trim="true"/>
                    </not>
                    <not>
                        <equals arg1="${sign.keystore.password}" arg2="" trim="true"/>
                    </not>
                </and>
            </or>
        </condition>
        <condition property="skip-sign-alias-password-input">
            <or>
                <isfalse value="${sign.enabled}"/>
                <and>
                    <isset property="sign.keystore"/>
                    <isset property="sign.alias"/>
                    <isset property="sign.alias.password"/>
                    <not>
                        <equals arg1="${sign.keystore}" arg2="" trim="true"/>
                    </not>
                    <not>
                        <equals arg1="${sign.alias}" arg2="" trim="true"/>
                    </not>
                    <not>
                        <equals arg1="${sign.alias.password}" arg2="" trim="true"/>
                    </not>
                </and>
            </or>
        </condition>
    </target>
    <target name="set-keystore-password" if="netbeans.home" unless="skip-sign-keystore-password-input">
        <nb-enter-password keystore="${sign.keystore}" passwordproperty="sign.keystore.password"/>
    </target>
    <target name="set-alias-password" if="netbeans.home" unless="skip-sign-alias-password-input">
        <nb-enter-password keystore="${sign.keystore}" keyalias="${sign.alias}" passwordproperty="sign.alias.password"/>
    </target>
    <target name="set-password" depends="set-password-init,set-keystore-password,set-alias-password"/>
    <!--create JAD-->
    <target name="add-configuration" unless="contains.manifest.configuration">
        <nb-output file="${dist.dir}/${dist.jad}" encoding="UTF-8" append="true">MicroEdition-Configuration: ${platform.configuration}
</nb-output>
        <nb-output file="${manifest.build.file}" encoding="UTF-8" append="true">MicroEdition-Configuration: ${platform.configuration}
</nb-output>
    </target>
    <target name="add-profile" unless="contains.manifest.profile">
        <nb-output file="${dist.dir}/${dist.jad}" encoding="UTF-8" append="true">MicroEdition-Profile: ${platform.profile}
</nb-output>
        <nb-output file="${manifest.build.file}" encoding="UTF-8" append="true">MicroEdition-Profile: ${platform.profile}
</nb-output>
    </target>
    <target name="create-jad" if="cldc-platform.trigger">
        <fail unless="dist.jad">Must set dist.jad</fail>
        <mkdir dir="${build.dir}"/>
        <dirname file="${dist.dir}/${dist.jad}" property="dist.jad.dir"/>
        <mkdir dir="${dist.jad.dir}"/>
        <condition property="evaluated.manifest.apipermissions" value="${manifest.apipermissions}">
            <not>
                <equals arg1="${platform.profile}" arg2="MIDP-1.0"/>
            </not>
        </condition>
        <condition property="evaluated.manifest.pushregistry" value="${manifest.pushregistry}">
            <not>
                <equals arg1="${platform.profile}" arg2="MIDP-1.0"/>
            </not>
        </condition>
        <condition property="contains.manifest.configuration">
            <contains substring="MicroEdition-Configuration: " string="${manifest.others}"/>
        </condition>
        <condition property="contains.manifest.profile">
            <contains substring="MicroEdition-Profile: " string="${manifest.others}"/>
        </condition>
        <property value="" name="evaluated.manifest.apipermissions"/>
        <property value="" name="evaluated.manifest.pushregistry"/>
        <property name="manifest.jad" value=""/>
        <property name="manifest.manifest" value=""/>
        <nb-output file="${dist.dir}/${dist.jad}" encoding="UTF-8">${manifest.midlets}${evaluated.manifest.apipermissions}${evaluated.manifest.pushregistry}${manifest.others}${manifest.jad}</nb-output>
        <nb-output file="${manifest.build.file}" encoding="UTF-8">${manifest.midlets}${evaluated.manifest.apipermissions}${evaluated.manifest.pushregistry}${manifest.others}${manifest.manifest}</nb-output>
        <antcall target="add-configuration" inheritall="true" inheritrefs="true"/>
        <antcall target="add-profile" inheritall="true" inheritrefs="true"/>
        <property name="manifest.available" value="true"/>
    </target>
    <!--do-extra-libs-->
    <target name="do-extra-libs" if="extra.classpath">
        <property name="dist.lib.dir" value="${dist.dir}/lib"/>
        <mkdir dir="${dist.lib.dir}"/>
        <copy todir="${dist.lib.dir}">
            <path path="${extra.classpath}"/>
            <flattenmapper/>
        </copy>
    </target>
    <!--nokiaS80-manifest-->
    <target name="nokiaS80-prepare-j9" if="nokiaS80-platform.trigger">
        <fail message="Main class is not set!">
            <condition>
                <equals arg1="${main.class}" arg2="" trim="true"/>
            </condition>
        </fail>
        <mkdir dir="${build.dir}/j9"/>
        <taskdef name="j9builder" classname="org.netbeans.modules.j2me.cdc.project.J9Builder" classpath="${libs.cdc-ant-utils.classpath}"/>
        <j9builder jvmargs="${run.jvmargs}" mainclass="${main.class}" args="${application.args}" home="${platform.home}" dist="${j9.dist}" id="NOKIA" platform="${platform.type}" xlet="${main.class.xlet}" applet="${main.class.applet}" jarname="${dist.jar}"/>
        <copy file="${manifest.file}" tofile="${manifest.build.file}" failonerror="false"/>
        <property name="manifest.available" value="true"/>
        <loadfile property="nokia.manifest.j9" srcFile="${j9.dist}"/>
    </target>
    <target name="nokiaS80-prepare-manifest" depends="nokiaS80-prepare-j9" if="nokiaS80-platform.trigger" unless="nokia.icon.invalid">
        <pathconvert property="logo.icon.name" pathsep=" ">
            <path path="${nokiaS80.application.icon}"/>
            <chainedmapper>
                <flattenmapper/>
                <globmapper from="*" to="*"/>
            </chainedmapper>
    

Answer 1

The error says class file is missing, you can try to clean and build.