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Generating process image on jBPM Designer and OpenJDK7
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created by <a href="https://community.jboss.org/people/cristiano.nicolai">Cristiano Nicolai</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/778788#778788">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi all,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I just run into a bug trying to generate a process image and I think this information can be useful to save some <span class="short_text" id="result_box" lang="en"><span class="hps">time if anyone have the same problem.</span></span></p><p>Here is the situation:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>My environment:</p><p>Guvnor 5.5.0.Final</p><p>jBPM Designer 2.4.0.Final</p><p>OpenJDK 1.7.0_09-icedtea</p><p>EAP6</p><p>RHEL6.3</p><p><br/>Basically if you try to export a process image you get a file not found as response. However, a process image file is created on Guvnor(0 bytes). Looking at the logs you will not see much information about the error.</p><p>After some investigation I could get the following stacktrace: </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>17:21:51,730 ERROR [stderr] (http-localhost/127.0.0.1:8080-23) java.lang.NullPointerException</p><p>17:21:51,730 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at sun.awt.X11FontManager.getDefaultPlatformFont(X11FontManager.java:779)</p><p>17:21:51,731 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at sun.font.SunFontManager$2.run(SunFontManager.java:432)</p><p>17:21:51,731 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at java.security.AccessController.doPrivileged(Native Method)</p><p>17:21:51,731 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at sun.font.SunFontManager.<init>(SunFontManager.java:375)</p><p>17:21:51,731 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at sun.awt.X11FontManager.<init>(X11FontManager.java:32)</p><p>17:21:51,731 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)</p><p>17:21:51,732 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)</p><p>17:21:51,732 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)</p><p>17:21:51,732 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at java.lang.reflect.Constructor.newInstance(Constructor.java:525)</p><p>17:21:51,732 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at java.lang.Class.newInstance0(Class.java:372)</p><p>17:21:51,732 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at java.lang.Class.newInstance(Class.java:325)</p><p>17:21:51,732 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at sun.font.FontManagerFactory$1.run(FontManagerFactory.java:83)</p><p>17:21:51,733 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at java.security.AccessController.doPrivileged(Native Method)</p><p>17:21:51,733 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at sun.font.FontManagerFactory.getInstance(FontManagerFactory.java:74)</p><p>17:21:51,733 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at java.awt.Font.getFont2D(Font.java:490)</p><p>17:21:51,733 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at java.awt.Font.canDisplay(Font.java:1947)</p><p>17:21:51,733 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at sun.font.FontResolver.getIndexFor(FontResolver.java:98)</p><p>17:21:51,734 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at sun.font.FontResolver.getFontIndex(FontResolver.java:174)</p><p>17:21:51,734 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at sun.font.FontResolver.getFontIndex(FontResolver.java:181)</p><p>17:21:51,734 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at sun.font.FontResolver.nextFontRunIndex(FontResolver.java:199)</p><p>17:21:51,734 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at java.awt.font.TextLayout.singleFont(TextLayout.java:475)</p><p>17:21:51,734 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at java.awt.font.TextLayout.<init>(TextLayout.java:527)</p><p>17:21:51,734 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.text.BidiAttributedCharacterIterator.<init>(Unknown Source)</p><p>17:21:51,735 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.renderer.StrokingTextPainter.computeTextRuns(Unknown Source)</p><p>17:21:51,735 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.renderer.StrokingTextPainter.getTextRuns(Unknown Source)</p><p>17:21:51,735 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.renderer.StrokingTextPainter.getBounds2D(Unknown Source)</p><p>17:21:51,735 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.TextNode.getPrimitiveBounds(Unknown Source)</p><p>17:21:51,735 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.AbstractGraphicsNode.getTransformedPrimitiveBounds(Unknown Source)</p><p>17:21:51,736 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.AbstractGraphicsNode.getTransformedBounds(Unknown Source)</p><p>17:21:51,736 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.CompositeGraphicsNode.getPrimitiveBounds(Unknown Source)</p><p>17:21:51,736 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.CompositeGraphicsNode.getTransformedPrimitiveBounds(Unknown Source)</p><p>17:21:51,736 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.AbstractGraphicsNode.getTransformedBounds(Unknown Source)</p><p>17:21:51,736 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.CompositeGraphicsNode.getPrimitiveBounds(Unknown Source)</p><p>17:21:51,737 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.CompositeGraphicsNode.getTransformedPrimitiveBounds(Unknown Source)</p><p>17:21:51,737 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.AbstractGraphicsNode.getTransformedBounds(Unknown Source)</p><p>17:21:51,737 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.CompositeGraphicsNode.getPrimitiveBounds(Unknown Source)</p><p>17:21:51,737 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.CompositeGraphicsNode.getTransformedPrimitiveBounds(Unknown Source)</p><p>17:21:51,737 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.AbstractGraphicsNode.getTransformedBounds(Unknown Source)</p><p>17:21:51,738 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.CompositeGraphicsNode.getPrimitiveBounds(Unknown Source)</p><p>17:21:51,738 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.CompositeGraphicsNode.getTransformedPrimitiveBounds(Unknown Source)</p><p>17:21:51,738 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.AbstractGraphicsNode.getTransformedBounds(Unknown Source)</p><p>17:21:51,738 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.CompositeGraphicsNode.getPrimitiveBounds(Unknown Source)</p><p>17:21:51,738 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.CompositeGraphicsNode.getTransformedPrimitiveBounds(Unknown Source)</p><p>17:21:51,739 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.AbstractGraphicsNode.getTransformedBounds(Unknown Source)</p><p>17:21:51,739 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.CompositeGraphicsNode.getPrimitiveBounds(Unknown Source)</p><p>17:21:51,739 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.CompositeGraphicsNode.getTransformedPrimitiveBounds(Unknown Source)</p><p>17:21:51,739 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.AbstractGraphicsNode.getTransformedBounds(Unknown Source)</p><p>17:21:51,739 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.CompositeGraphicsNode.getPrimitiveBounds(Unknown Source)</p><p>17:21:51,740 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.CompositeGraphicsNode.getTransformedPrimitiveBounds(Unknown Source)</p><p>17:21:51,740 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.AbstractGraphicsNode.getTransformedBounds(Unknown Source)</p><p>17:21:51,740 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.CompositeGraphicsNode.getPrimitiveBounds(Unknown Source)</p><p>17:21:51,740 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.CompositeGraphicsNode.getTransformedPrimitiveBounds(Unknown Source)</p><p>17:21:51,740 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.AbstractGraphicsNode.getTransformedBounds(Unknown Source)</p><p>17:21:51,741 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.CompositeGraphicsNode.getPrimitiveBounds(Unknown Source)</p><p>17:21:51,741 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.filter.GraphicsNodeRable8Bit.getBounds2D(Unknown Source)</p><p>17:21:51,741 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.filter.GraphicsNodeRable8Bit.createRendering(Unknown Source)</p><p>17:21:51,741 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.renderer.StaticRenderer.renderGNR(Unknown Source)</p><p>17:21:51,741 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.renderer.StaticRenderer.updateWorkingBuffers(Unknown Source)</p><p>17:21:51,742 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.renderer.StaticRenderer.repaint(Unknown Source)</p><p>17:21:51,742 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.gvt.renderer.StaticRenderer.repaint(Unknown Source)</p><p>17:21:51,742 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.transcoder.image.ImageTranscoder.transcode(ImageTranscoder.java:110)</p><p>17:21:51,742 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.transcoder.XMLAbstractTranscoder.transcode(XMLAbstractTranscoder.java:142)</p><p>17:21:51,742 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.apache.batik.transcoder.SVGAbstractTranscoder.transcode(SVGAbstractTranscoder.java:155)</p><p>17:21:51,743 ERROR [stderr] (http-localhost/127.0.0.1:8080-23)     at org.jbpm.designer.web.server.TransformerServlet.doPost(TransformerServlet.java:210)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span>It turns out that this problem is related to the following OpenJDK bug: </span><a class="jive-link-external-small" href="http://bugs.sun.com/view_bug.do?bug_id=7068471" target="_blank">http://bugs.sun.com/view_bug.do?bug_id=7068471</a><span>, which is fixed only for OpenJDK8.</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>To get around this problem I installed the following package dejavu-sans-fonts on RHEL6.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>If you google for NullPointerException sun.awt.X11FontManager.getDefaultPlatformFont you can find many other people having similar problems.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Hope this information can be useful.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Happy process modeling! <span> ;) </span></p></div>
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