[Receiving 'download contains virus' from MalwareBytes while downloading Jasper community 6.21.2]

 

Here is shot of the message

 

[Receiving 'download contains virus' from MalwareBytes while downloading Jasper community 6.21.2]

Attempting to download the Jasper Java library community version 6.21.2   The download stopped with a message from MalwareBytes stating that the download (a zip file) contains a virus.

[Does Jaspersoft Studio v6 Produce jrxml Compatible WIth JasperReports 5.6]

Am building a new computer and can only find JasperStudio 6+.  But my projects all use JasperReports 5.6, and it requires customer approval to upgrade JasperReports. In the meantime, I need to continue running JasperReports 5.6 and may need to make occasional changes to existing jrxml using JasperStudio 6+.

Are there compatibility issues using JasperStudio 6+ with JasperReports 5.6?

[Performance Of JasperReports Library]

I am a long time user of the JasperReport library - having used it on multiple medium to large sized projects over a 10+ year period. Am currently at 5.6. In one project, we are experiencing serious performace degradation with large reports. Our report generators run on a JBoss EAP 6.2 server under a Quartz-based batch processor. We always invoke Jasper with a bean list. When the bean list gets fairly large (say 20,000 or more), the performance of the Jasper library drops radically. We know the problem is in the Jasper library due to instrumentation-based monitoring we have performed. The problem is not a lack of server memory - the server has 6GB of FREE memory. The problem is not lack of CPU either - the server's idle percent is in the 80 percent range.

When I say the performance drops radically, I mean that clock time per bean list entry increases from about 200MS to over 1000MS - a 500% decrease in performance when the bean list is large. This is with the same report templates. The only difference being the size of the bean list used to produce a report.

Has the JasperReport library development put effort into improving performance for large datasets? 

[Jasper Community 5.6.0 Unable To AutoSize Height]

Report with long text does not stretch vertically. jrxml show below. Am using isStretchWithOverflow="true" and band has splitType="Stretch"

When band height is increased to 30, I can see that the textField is not stretching.

    <detail>
        <band height="12" splitType="Stretch">
            <textField isStretchWithOverflow="true" isBlankWhenNull="true">
                <reportElement stretchType="RelativeToTallestObject" x="472" y="0" width="260" height="10" uuid="f3d59f8e-c015-4afa-b748-f72691d7014f">
                    <property name="local_mesure_unitx" value="pixel"/>
                    <property name="com.jaspersoft.studio.unit.x" value="px"/>
                    <property name="local_mesure_unitwidth" value="pixel"/>
                    <property name="com.jaspersoft.studio.unit.width" value="px"/>
                    <property name="local_mesure_unity" value="pixel"/>
                    <property name="com.jaspersoft.studio.unit.y" value="px"/>
                </reportElement>
                <textElement>
                    <font fontName="Consolas" size="8" pdfFontName="Courier"/>
                </textElement>
                <textFieldExpression><![CDATA[$F{messageText}]]></textFieldExpression>
            </textField>
        </band>
    </detail>