I have de same problem, and it seems to be DATA DRIVEN, when i have a too long string in one of my report textfield jasper seems to struggle fitting it .thats why i have the save stack trace than you "FeuilleDeTravail subreport filler" at sun.awt.font.NativeFontWrapper.getFontMetrics(Native Method) at java.awt.Font.defaultLineMetrics(Font.java:1595) at java.awt.Font.getLineMetrics(Font.java:1662) at java.awt.font.TextMeasurer.initAll(TextMeasurer.java:223) at java.awt.font.TextMeasurer.<init>(TextMeasurer.java:149) at java.awt.font.LineBreakMeasurer.<init>(LineBreakMeasurer.java:292) at java.awt.font.LineBreakMeasurer.<init>(LineBreakMeasurer.java:259) at net.sf.jasperreports.engine.fill.TextMeasurer.renderParagraph(TextMeasurer.java:259) at net.sf.jasperreports.engine.fill.TextMeasurer.measure(TextMeasurer.java:220) at net.sf.jasperreports.engine.fill.JRFillTextElement.chopTextElement(JRFillTextElement.java:528) with jasperreports 5.5.0, jdk 1.6.33 and jboss 4.3 Aris
