Spectrum OneClick WebApp failed to start, font error seen in tomcat and webswing.log "Caused by: java.lang.Exception: java.lang.RuntimeException: Loading TTF font /spectrum/webtomcat/webswing/fonts/RobotoSlab-Regular.ttf failed ."
Article ID: 145405
Updated On:
Products
Issue/Introduction
When we try to start the OneClick Webapp from the OneClick web page, we see a short attempt to start webSwing but then only the OneClick web page will be shown.
The catalina.out shows the following entry each time you try to start the Webapp:
Caused by: java.lang.Exception: java.lang.RuntimeException: Loading TTF font /spectrum/webtomcat/webswing/fonts/RobotoSlab-Regular.ttf failed .
But when you look in the filesystem you can see the font is there:
ls -l /spectrum/webtomcat/webswing/fonts/
total 440
-rw-r--r-- 1 spectrum spectrum 114624 Oct 4 02:43 RobotoMono-Regular.ttf
-rw-r--r-- 1 spectrum spectrum 162876 Oct 4 02:43 Roboto-Regular.ttf
-rw-r--r-- 1 spectrum spectrum 169064 Oct 4 02:43 RobotoSlab-Regular.ttf
When you take a look at webswing.config you see this font is configured in the same way as the two others, which can be loaded without any problems.
"fontConfig" : {
"dialog" : "${SPECROOT}/webtomcat/webswing/fonts/Roboto-Regular.ttf",
"dialoginput" : "${SPECROOT}/webtomcat/webswing/fonts/RobotoMono-Regular.ttf",
"serif" : "${SPECROOT}/webtomcat/webswing/fonts/RobotoSlab-Regular.ttf"
},
Environment
Release : 10.4.x / 21.x
Cause
This appears to be caused if Java 11 is installed, or if Java 8 is being used without linux pango package installed.
Resolution
Install pango linux package (yum install pango) and its dependencies. Then try to relaunch webapp and now it should succeed.
Additional Information
Dependencies that were installed during pango
Dependencies Resolved
================================================================================================================================================
Package Arch Version Repository Size
================================================================================================================================================
Installing:
pango x86_64 1.42.4-4.el7_7 rhel-7-server-rpms 280 k
Installing for dependencies:
bzip2-libs i686 1.0.6-13.el7 rhel-7-server-rpms 40 k
cairo x86_64 1.15.12-4.el7 rhel-7-server-rpms 741 k
dejavu-fonts-common noarch 2.33-6.el7 rhel-7-server-rpms 64 k
dejavu-sans-fonts noarch 2.33-6.el7 rhel-7-server-rpms 1.4 M
fribidi x86_64 1.0.2-1.el7_7.1 rhel-7-server-rpms 80 k
graphite2 x86_64 1.3.10-1.el7_3 rhel-7-server-rpms 115 k
harfbuzz x86_64 1.7.5-2.el7 rhel-7-server-rpms 267 k
libglvnd-egl x86_64 1:1.0.1-0.8.git5baa1e5.el7 rhel-7-server-rpms 44 k
libpng x86_64 2:1.5.13-8.el7 rhel-7-server-rpms 213 k
libthai x86_64 0.1.14-9.el7 rhel-7-server-rpms 187 k
libwayland-client x86_64 1.15.0-1.el7 rhel-7-server-rpms 33 k
libwayland-server x86_64 1.15.0-1.el7 rhel-7-server-rpms 39 k
mesa-libEGL x86_64 18.3.4-12.el7_9 rhel-7-server-rpms 110 k
mesa-libgbm x86_64 18.3.4-12.el7_9 rhel-7-server-rpms 39 k
Updating for dependencies:
fontconfig i686 2.13.0-4.3.el7 rhel-7-server-rpms 255 k
fontconfig x86_64 2.13.0-4.3.el7 rhel-7-server-rpms 254 k
freetype i686 2.8-14.el7_9.1 rhel-7-server-rpms 377 k
freetype x86_64 2.8-14.el7_9.1 rhel-7-server-rpms 380 k
glib2 x86_64 2.56.1-9.el7_9 rhel-7-server-rpms 2.5 M
libpng i686 2:1.5.13-8.el7 rhel-7-server-rpms 215 k
mesa-libGL x86_64 18.3.4-12.el7_9 rhel-7-server-rpms 166 k
mesa-libglapi x86_64 18.3.4-12.el7_9 rhel-7-server-rpms 46 k
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