parsing long values into Expression actor broken?

[Tristan King]

I've come across a problem where passing a long value into an Expression 
actor and trying to concatenate it with a string, the long value is 
reverted to "0.0".

I've attached an example workflow made in kepler which shows the problem.
Am I doing something wrong? or is something broken?

Thanks
--Tristan

--
Tristan King                            | Ph: (07) 4781 6911
DART project team                       | Email: [EMAIL PROTECTED]
James Cook University                   | Web: http://dart.edu.au
Townsville QLD 4814                     | http://plone.jcu.edu.au/dart/
Australia                               |
<?xml version="1.0" standalone="no"?>
<!DOCTYPE entity PUBLIC "-//UC Berkeley//DTD MoML 1//EN"
    "http://ptolemy.eecs.berkeley.edu/xml/dtd/MoML_1.dtd";>
<entity name="long-in-exp-broken" class="ptolemy.actor.TypedCompositeActor">
    <property name="_createdBy" class="ptolemy.kernel.attributes.VersionAttribute" value="6.0-devel">
    </property>
    <property name="SDF Director" class="ptolemy.domains.sdf.kernel.SDFDirector">
        <property name="iterations" class="ptolemy.data.expr.Parameter" value="1">
        </property>
        <property name="timeResolution" class="ptolemy.moml.SharedParameter" value="1E-10">
        </property>
        <property name="entityId" class="org.kepler.moml.NamedObjId" value="urn:lsid:kepler-project.org:director:1:1">
        </property>
        <property name="class" class="ptolemy.kernel.util.StringAttribute" value="ptolemy.domains.sdf.kernel.SDFDirector">
            <property name="id" class="ptolemy.kernel.util.StringAttribute" value="urn:lsid:kepler-project.org:directorclass:1:1">
            </property>
        </property>
        <property name="semanticType000" class="org.kepler.sms.SemanticType" value="urn:lsid:localhost:onto:1:1#Director">
        </property>
        <property name="_location" class="ptolemy.kernel.util.Location" value="{130, 150}">
        </property>
    </property>
    <property name="_windowProperties" class="ptolemy.actor.gui.WindowPropertiesAttribute" value="{bounds={113, 25, 873, 790}, maximized=false}">
    </property>
    <property name="_vergilSize" class="ptolemy.actor.gui.SizeAttribute" value="[600, 657]">
    </property>
    <property name="_vergilZoomFactor" class="ptolemy.data.expr.ExpertParameter" value="1.0">
    </property>
    <property name="_vergilCenter" class="ptolemy.data.expr.ExpertParameter" value="{300.0, 328.5}">
    </property>
    <entity name="Display" class="ptolemy.actor.lib.gui.Display">
        <property name="rowsDisplayed" class="ptolemy.data.expr.Parameter" value="10">
        </property>
        <property name="columnsDisplayed" class="ptolemy.data.expr.Parameter" value="40">
        </property>
        <property name="suppressBlankLines" class="ptolemy.data.expr.Parameter" value="false">
        </property>
        <property name="_windowProperties" class="ptolemy.actor.gui.WindowPropertiesAttribute" value="{bounds={426, 404, 428, 214}, maximized=false}">
        </property>
        <property name="entityId" class="org.kepler.moml.NamedObjId" value="urn:lsid:kepler-project.org:actor:7:1">
        </property>
        <property name="class" class="ptolemy.kernel.util.StringAttribute" value="ptolemy.actor.lib.gui.Display">
            <property name="id" class="ptolemy.kernel.util.StringAttribute" value="urn:lsid:kepler-project.org:class:883:1">
            </property>
        </property>
        <property name="semanticType000" class="org.kepler.sms.SemanticType" value="urn:lsid:localhost:onto:1:1#TextualOutputActor">
        </property>
        <property name="_location" class="ptolemy.kernel.util.Location" value="{360, 290}">
        </property>
    </entity>
    <entity name="Expression" class="ptolemy.actor.lib.Expression">
        <property name="expression" class="ptolemy.kernel.util.StringAttribute" value="100L">
            <property name="_hide" class="ptolemy.data.expr.Parameter" value="true">
            </property>
        </property>
        <property name="entityId" class="org.kepler.moml.NamedObjId" value="urn:lsid:kepler-project.org:actor:75:1">
        </property>
        <property name="class" class="ptolemy.kernel.util.StringAttribute" value="ptolemy.actor.lib.Expression">
            <property name="id" class="ptolemy.kernel.util.StringAttribute" value="urn:lsid:kepler-project.org:class:950:1">
            </property>
        </property>
        <property name="semanticType000" class="org.kepler.sms.SemanticType" value="urn:lsid:localhost:onto:1:1#MathOperationActor">
        </property>
        <property name="_icon" class="ptolemy.vergil.icon.BoxedValueIcon">
            <property name="attributeName" class="ptolemy.kernel.util.StringAttribute" value="expression">
            </property>
            <property name="displayWidth" class="ptolemy.data.expr.Parameter" value="60">
            </property>
        </property>
        <property name="_location" class="ptolemy.kernel.util.Location" value="{145, 285}">
        </property>
    </entity>
    <entity name="Expression2" class="ptolemy.actor.lib.Expression">
        <property name="expression" class="ptolemy.kernel.util.StringAttribute" value="&quot;...&quot; + time + &quot;...&quot;">
            <property name="_hide" class="ptolemy.data.expr.Parameter" value="true">
            </property>
        </property>
        <property name="entityId" class="org.kepler.moml.NamedObjId" value="urn:lsid:kepler-project.org:actor:75:1">
        </property>
        <property name="class" class="ptolemy.kernel.util.StringAttribute" value="ptolemy.actor.lib.Expression">
            <property name="id" class="ptolemy.kernel.util.StringAttribute" value="urn:lsid:kepler-project.org:class:950:1">
            </property>
        </property>
        <property name="semanticType000" class="org.kepler.sms.SemanticType" value="urn:lsid:localhost:onto:1:1#MathOperationActor">
        </property>
        <property name="_icon" class="ptolemy.vergil.icon.BoxedValueIcon">
            <property name="attributeName" class="ptolemy.kernel.util.StringAttribute" value="expression">
            </property>
            <property name="displayWidth" class="ptolemy.data.expr.Parameter" value="60">
            </property>
        </property>
        <property name="_location" class="ptolemy.kernel.util.Location" value="{190, 380}">
        </property>
        <port name="time" class="ptolemy.actor.TypedIOPort">
            <property name="input"/>
            <property name="_type" class="ptolemy.actor.TypeAttribute" value="long">
            </property>
        </port>
    </entity>
    <relation name="relation2" class="ptolemy.actor.TypedIORelation">
        <property name="width" class="ptolemy.data.expr.Parameter" value="1">
        </property>
    </relation>
    <relation name="relation" class="ptolemy.actor.TypedIORelation">
        <property name="width" class="ptolemy.data.expr.Parameter" value="1">
        </property>
    </relation>
    <link port="Display.input" relation="relation2"/>
    <link port="Expression.output" relation="relation"/>
    <link port="Expression2.output" relation="relation2"/>
    <link port="Expression2.time" relation="relation"/>
</entity>