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Published Sep. 10, 2025

DXP Fails to Generate Captchas and Charts on RHEL 7.4

Written By

Christopher Lui

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When using RHEL 7.4, and viewing a captcha, or when navigating to Control Panel > Configuration > Server Administration, the following stack trace will appear in the application server logs. That is catalina.out for Tomcat.

Caused by: java.lang.ArrayIndexOutOfBoundsException: 0
        at sun.font.CompositeStrike.getStrikeForSlot(CompositeStrike.java:75)
        at sun.font.CompositeStrike.getFontMetrics(CompositeStrike.java:93)
        at sun.font.FontDesignMetrics.initMatrixAndMetrics(FontDesignMetrics.java:359)
        at sun.font.FontDesignMetrics.<init>(FontDesignMetrics.java:350)
        at sun.font.FontDesignMetrics.getMetrics(FontDesignMetrics.java:302)
        at sun.java2d.SunGraphics2D.getFontMetrics(SunGraphics2D.java:855)
        at org.jfree.text.G2TextMeasurer.getStringWidth(G2TextMeasurer.java:79)
        at org.jfree.text.TextUtilities.nextLineBreak(TextUtilities.java:294)
        at org.jfree.text.TextUtilities.createTextBlock(TextUtilities.java:235)
        at org.jfree.chart.title.TextTitle.arrangeRR(TextTitle.java:632)
        at org.jfree.chart.title.TextTitle.arrange(TextTitle.java:501)
        at org.jfree.chart.JFreeChart.drawTitle(JFreeChart.java:1321)
        at org.jfree.chart.JFreeChart.draw(JFreeChart.java:1209)
        at org.jfree.chart.JFreeChart.createBufferedImage(JFreeChart.java:1409)
        at org.jfree.chart.JFreeChart.createBufferedImage(JFreeChart.java:1389)
        at org.jfree.chart.ChartUtilities.writeChartAsPNG(ChartUtilities.java:183)
        at org.jfree.chart.ChartUtilities.writeChartAsPNG(ChartUtilities.java:136)
        at com.liferay.server.admin.web.internal.portlet.action.ViewChartMVCResourceCommand.doServeResource(ViewChartMVCResourceCommand.java:108)
        at com.liferay.portal.kernel.portlet.bridges.mvc.BaseMVCResourceCommand.serveResource(BaseMVCResourceCommand.java:41)
        ... 168 more

You may also encounter this stack trace result when using related operating systems, such as Fedora or CentOS.

The issue occurs because of issues with OpenJDK 1.8.0.141-2 in Red Hat 7.4 and its default font package, Stix. See the following links for reference.

Resolution

There are two known resolutions and one workaround:

  1. Revert the Stix font back to Utopia fonts
  2. Update to an OpenJDK version newer than 1.8.0.141-2

Workaround:

  1. In some scenarios installing dejavu fonts fixes the problem:
yum install dejavu-serif-fonts
yum install dejavu-sans-fonts
yum install dejavu-fonts-common
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