java - 首次应用程序启动期间获取 "ERROR DefaultExtensionsRegistry - Error instantiating extensions registry for fonts"

Question

我正在使用JasperReports 3.7.2、iReport 3.7.2和JRE 1.6.0.20。

首先，当我生成 PDF 报告时，我收到以下错误(但是报告已正确生成):

2012-08-24 10:03:49,302 [http-8180-1] ERROR DefaultExtensionsRegistry - Error instantiating extensions registry for fonts
net.sf.jasperreports.engine.JRRuntimeException: java.awt.FontFormatException: bad table, tag=1146308935
        at net.sf.jasperreports.engine.fonts.SimpleFontFace.<init>(SimpleFontFace.java:73)
        at net.sf.jasperreports.engine.fonts.SimpleFontFamily.createFontFace(SimpleFontFamily.java:316)
        at net.sf.jasperreports.engine.fonts.SimpleFontFamily.setNormal(SimpleFontFamily.java:85)
        at net.sf.jasperreports.engine.fonts.SimpleFontExtensionHelper.parseFontFamily(SimpleFontExtensionHelper.java:233)
        at net.sf.jasperreports.engine.fonts.SimpleFontExtensionHelper.parseFontFamilies(SimpleFontExtensionHelper.java:204)
        at net.sf.jasperreports.engine.fonts.SimpleFontExtensionHelper.loadFontFamilies(SimpleFontExtensionHelper.java:173)
        at net.sf.jasperreports.engine.fonts.SimpleFontExtensionHelper.loadFontFamilies(SimpleFontExtensionHelper.java:142)
        at net.sf.jasperreports.engine.fonts.SimpleFontExtensionsRegistryFactory.createRegistry(SimpleFontExtensionsRegistryFactory.java:63)
        at net.sf.jasperreports.extensions.DefaultExtensionsRegistry.instantiateRegistry(DefaultExtensionsRegistry.java:238)
        at net.sf.jasperreports.extensions.DefaultExtensionsRegistry.loadRegistries(DefaultExtensionsRegistry.java:213)
        at net.sf.jasperreports.extensions.DefaultExtensionsRegistry.loadRegistries(DefaultExtensionsRegistry.java:162)
        at net.sf.jasperreports.extensions.DefaultExtensionsRegistry.getRegistries(DefaultExtensionsRegistry.java:132)
        at net.sf.jasperreports.extensions.DefaultExtensionsRegistry.getExtensions(DefaultExtensionsRegistry.java:104)
        at net.sf.jasperreports.engine.util.JRStyledTextParser.<clinit>(JRStyledTextParser.java:76)
        at java.lang.J9VMInternals.initializeImpl(Native Method)
        at java.lang.J9VMInternals.initialize(J9VMInternals.java:200)
        at net.sf.jasperreports.engine.fill.JRBaseFiller.<init>(JRBaseFiller.java:182) 

随后尝试生成PDF 成功且没有错误。仅在运行应用程序后第一次生成 PDF 时才会发生错误。

错误与操作系统无关，它发生在Windows以及UNIX(AIX和Linux )。

请有人给我解决这个问题的线索。

Answer 1

您的 jar 文件中的字体之一似乎无法解析。我知道你永远不会读到这条评论，但这似乎是显而易见的。它只是跳过该字体，然后不再尝试读取字体扩展名。