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Attempt to invoke virtual method 'boolean org.apache.xalan.extensions.ExtensionsTable.functionAvailable(java.lang.String, java.lang.String)' on a null object reference
java.lang.NullPointerException: Attempt to invoke virtual method 'boolean org.apache.xalan.extensions.ExtensionsTable.functionAvailable(java.lang.String, java.lang.String)' on a null object reference at org.apache.xalan.transformer.TransformerImpl.functionAvailable(TransformerImpl.java:396) at org.apache.xpath.functions.FuncExtFunctionAvailable.execute(FuncExtFunctionAvailable.java:89) at org.apache.xpath.Expression.bool(Expression.java:186) at org.apache.xpath.XPath.bool(XPath.java:412) at org.apache.xalan.templates.ElemChoose.execute(ElemChoose.java:103) at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2223) at org.apache.xalan.templates.ElemTemplate.execute(ElemTemplate.java:389) at org.apache.xalan.templates.ElemCallTemplate.execute(ElemCallTemplate.java:241) at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2223) at org.apache.xalan.transformer.TransformerImpl.transformToRTF(TransformerImpl.java:1830) at org.apache.xalan.transformer.TransformerImpl.transformToRTF(TransformerImpl.java:1752) at org.apache.xalan.templates.ElemVariable.getValue(ElemVariable.java:302) at org.apache.xalan.templates.ElemVariable.execute(ElemVariable.java:245) at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2223) at org.apache.xalan.templates.ElemTemplate.execute(ElemTemplate.java:389) at org.apache.xalan.templates.ElemCallTemplate.execute(ElemCallTemplate.java:241) at org.apache.xalan.templates.ElemApplyTemplates.transformSelectedNodes(ElemApplyTemplates.java:370) at org.apache.xalan.templates.ElemApplyTemplates.execute(ElemApplyTemplates.java:175) at org.apache.xalan.templates.ElemApplyTemplates.transformSelectedNodes(ElemApplyTemplates.java:370) at org.apache.xalan.templates.ElemApplyTemplates.execute(ElemApplyTemplates.java:175) at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2223) at org.apache.xalan.transformer.TransformerImpl.applyTemplateToNode(TransformerImpl.java:2096) at org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerImpl.java:1228) at org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:614) at org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1145) at org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1123)