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POGetting java.lang.NoSuchMethodError exception when using GWT + JasperReports
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  1. POGetting java.lang.NoSuchMethodError exception when using GWT + JasperReports
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    copied!<p>I have integrated <code>JasperReports</code> on my <code>NetBeans</code> platform and I am able to generate reports using the following code:</p> <pre class="lang-java prettyprint-override"><code>Map&lt;String, Object&gt; params = new HashMap&lt;String, Object&gt;(); Connection conn = DriverManager.getConnection("databaseUrl", "userid", "password"); JasperReport jasperReport = JasperCompileManager.compileReport(reportSource); JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, params, conn); JasperExportManager.exportReportToHtmlFile(jasperPrint, reportDest); JasperViewer.viewReport(jasperPrint); </code></pre> <p>This stuff works perfect.</p> <p>But not I'm trying to integrate <code>JasperReports</code> with <code>GWT</code>. I have my server as <code>GlassFish</code> server.</p> <p>I am getting the Connection object using the followind code:</p> <pre class="lang-java prettyprint-override"><code>public static Connection getConnection() { try { String JNDI = "JNDI name"; InitialContext initCtx = new InitialContext(); javax.sql.DataSource ds = (javax.sql.DataSource) initCtx.lookup(JNDI); Connection conn = (Connection) ds.getConnection(); return conn; } catch (Exception ex) { ex.printStackTrace(); } return null; } </code></pre> <p>and then </p> <pre class="lang-java prettyprint-override"><code>Map&lt;String, Object&gt; params = new HashMap&lt;String, Object&gt;(); JasperReport jasperReport = JasperCompileManager.compileReport(reportSource); JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, params, getConnection()); JasperExportManager.exportReportToHtmlFile(jasperPrint, reportDest); JasperViewer.viewReport(jasperPrint); </code></pre> <p>but i always get an Error. Here is a stacktrace:</p> <pre><code>com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract java.lang.Boolean com.client.service.GenerateReport()' threw an unexpected exception: java.lang.NoSuchMethodError: net.sf.jasperreports.engine.fonts.SimpleFontFamily.setExportFonts(Ljava/util/Map‌​); </code></pre> <p>I am implementing this on Server. I am having RPC calls to get this method to work when a button is clicked.</p> <p>Can you please help me how to work on this. (That is to integrate <code>JasperReports</code> with <code>GWT</code>).</p> <p>I would highly appreciate any explanation with some code as i am just a beginner.</p> <p>Thanks </p>
 

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