[fj-doc-mod-poi] On linux sometimes you may get a java.lang.InternalError on org.fugerit.java.doc.mod.poi.PoiUtils.resizeSheet()

[fugerit79]

On linux server with no graphical interface, is possible to get the an error when invoking :
at org.fugerit.java.doc.mod.poi.PoiUtils.resizeSheet()
For instance on :
at org.fugerit.java.doc.mod.poi.BasicPoiTypeHandler.handle()

Tested on jdk : jdk-11.0.16.1 (for linux arm)

Fix : install the fontconfig package on your system. (source)

Here is a sample stack trace for version fj-doc-mod-poi version 0.7.2

java.lang.InternalError: java.lang.reflect.InvocationTargetException
	at java.desktop/sun.font.FontManagerFactory$1.run(FontManagerFactory.java:86)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.desktop/sun.font.FontManagerFactory.getInstance(FontManagerFactory.java:74)
	at java.desktop/java.awt.Font.getFont2D(Font.java:497)
	at java.desktop/java.awt.Font.canDisplayUpTo(Font.java:2250)
	at java.desktop/java.awt.font.TextLayout.singleFont(TextLayout.java:469)
	at java.desktop/java.awt.font.TextLayout.<init>(TextLayout.java:530)
	at org.apache.poi.ss.util.SheetUtil.getDefaultCharWidth(SheetUtil.java:273)
	at org.apache.poi.ss.util.SheetUtil.getColumnWidth(SheetUtil.java:248)
	at org.apache.poi.ss.util.SheetUtil.getColumnWidth(SheetUtil.java:233)
	at org.apache.poi.xssf.usermodel.XSSFSheet.autoSizeColumn(XSSFSheet.java:555)
	at org.apache.poi.xssf.usermodel.XSSFSheet.autoSizeColumn(XSSFSheet.java:537)
	at org.fugerit.java.doc.mod.poi.PoiUtils.resizeSheet(PoiUtils.java:17)
	at org.fugerit.java.doc.mod.poi.PoiUtils.autoSizeColumns(PoiUtils.java:25)
	at org.fugerit.java.doc.mod.poi.BasicPoiTypeHandler.handle(BasicPoiTypeHandler.java:292)
	at org.fugerit.java.doc.lib.simpletable.SimpleTableDocConfig.processSimpleTable(SimpleTableDocConfig.java:60)
	at org.fugerit.java.doc.playground.doc.GenerateRest.validate(GenerateRest.java:142)
	at org.fugerit.java.doc.playground.doc.GenerateRest_ClientProxy.validate(Unknown Source)
	at org.fugerit.java.doc.playground.doc.GenerateRest$quarkusrestinvoker$validate_9602abc43de303ad70b38c0fbaa7c81272957d46.invoke(Unknown Source)
	at org.jboss.resteasy.reactive.server.handlers.InvocationHandler.handle(InvocationHandler.java:29)
	at io.quarkus.resteasy.reactive.server.runtime.QuarkusResteasyReactiveRequestContext.invokeHandler(QuarkusResteasyReactiveRequestContext.java:114)
	at org.jboss.resteasy.reactive.common.core.AbstractResteasyReactiveContext.run(AbstractResteasyReactiveContext.java:145)
	at io.quarkus.vertx.core.runtime.VertxCoreRecorder$14.runWith(VertxCoreRecorder.java:576)
	at org.jboss.threads.EnhancedQueueExecutor$Task.run(EnhancedQueueExecutor.java:2449)
	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1478)
	at org.jboss.threads.DelegatingRunnable.run(DelegatingRunnable.java:29)
	at org.jboss.threads.ThreadLocalResettingRunnable.run(ThreadLocalResettingRunnable.java:29)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.reflect.InvocationTargetException
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
	at java.desktop/sun.font.FontManagerFactory$1.run(FontManagerFactory.java:84)
	... 28 more
Caused by: java.lang.NullPointerException
	at java.desktop/sun.awt.FontConfiguration.getVersion(FontConfiguration.java:1262)
	at java.desktop/sun.awt.FontConfiguration.readFontConfigFile(FontConfiguration.java:225)
	at java.desktop/sun.awt.FontConfiguration.init(FontConfiguration.java:107)
	at java.desktop/sun.awt.X11FontManager.createFontConfiguration(X11FontManager.java:719)
	at java.desktop/sun.font.SunFontManager$2.run(SunFontManager.java:379)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.desktop/sun.font.SunFontManager.<init>(SunFontManager.java:324)
	at java.desktop/sun.awt.FcFontManager.<init>(FcFontManager.java:35)
	at java.desktop/sun.awt.X11FontManager.<init>(X11FontManager.java:56)