When processing an empty or invalid XML report, below exception will be occurred:

2010-09-16 15:30:50,828 [Thread-1079] ERROR com.pmease.quickbuild.DefaultBuildEngine - Error processing build request.
java.lang.NullPointerException
at com.pmease.quickbuild.plugin.report.engine.generator.xpath.XPathProcessor.processResource(XPathProcessor.java:84)
at com.pmease.quickbuild.plugin.report.engine.generator.AbstractProcessor.doExecute(AbstractProcessor.java:77)
at com.pmease.quickbuild.plugin.report.engine.generator.AbstractGenerator.doExecute(AbstractGenerator.java:38)
at com.pmease.quickbuild.plugin.report.engine.generator.GenerateAction.execute(GenerateAction.java:38)
at com.pmease.quickbuild.plugin.report.engine.generator.DefaultGenerator.generate(DefaultGenerator.java:36)
at com.pmease.quickbuild.plugin.report.engine.contribution.publisher.StatisticsReportPublisher.doPublish(StatisticsReportPublisher.java:133)
at com.pmease.quickbuild.plugin.report.engine.contribution.publisher.StatisticsReportPublisher.collectMetrics(StatisticsReportPublisher.java:114)
at com.pmease.quickbuild.DefaultBuildEngine.process(DefaultBuildEngine.java:329)
at com.pmease.quickbuild.DefaultBuildEngine.access$1(DefaultBuildEngine.java:241)
at com.pmease.quickbuild.DefaultBuildEngine$2.run(DefaultBuildEngine.java:757)
at java.lang.Thread.run(Thread.java:619)