在 Windchill PDMLink 中，点击“更改监视器”选项卡会抛出 NullPointerException 错误。

• 点击“更改监视器”选项卡时抛出NullPointerException错误
• 从10.2 M030 版本升级系统后，通过变更监视器访问“平均变更通知完成时间（整个系统）”时出现错误。
• 从多个产品上下文访问变更监视器时出现以下错误

   Windchill Error: For input string: "Low Impact or Emergency"

• 容器的变更监控页面出现错误

"For input string: "Fast Track"
"For input string: "Full Track"

• MethodServer 日志中的错误消息

wt.query.template username - getXMLSource()
wt.util.WTException: XML has been upgraded.
at wt.query.template.ReportTemplate.getXMLSource(ReportTemplate.java:414) 
at wt.query.template.ReportTemplateExecuteFormTaskDelegate.processAction(ReportTemplateExecuteFormTaskDelegate.java:55)

• 点击“更改监视器”选项卡时，浏览器显示以下错误消息。

Windchill Error
java.lang.reflect.InvocationTargetException Nested exception is: java.lang.reflect.InvocationTargetException

• MethodServer.log 报告以下错误

com.ptc.jca.error wcadmin - ---------- JCA Exception ----------
wt.util.WTException: java.lang.reflect.InvocationTargetException
Nested exception is: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at wt.query.template.ReportTemplateHelper.generateTableModel(ReportTemplateHelper.java:1040)
at wt.query.template.ReportTemplateHelper.generateTableModel(ReportTemplateHelper.java:1015)
Caused by: wt.util.WTException: java.lang.NullPointerException
Nested exception is: java.lang.NullPointerException
at com.ptc.windchill.enterprise.reportBuilder.ReportBuilderHelper.generateInfo(ReportBuilderHelper.java:741)
at com.ptc.windchill.enterprise.reportBuilder.ReportBuilderHelper.generateTableModel(ReportBuilderHelper.java:681)
... 64 more
Caused by: java.lang.NullPointerException
at com.ptc.windchill.enterprise.reportBuilder.ReportBuilderSoftQueryUtil.buildSoftItemBuilder(ReportBuilderSoftQueryUtil.java:68)
at com.ptc.windchill.enterprise.reportBuilder.ReportBuilderSoftQueryUtil.buildSoftRelationalExpression(ReportBuilderSoftQueryUtil.java:123)

• 点击“更改监视器”选项卡时，MethodServer.log 中出现以下错误。

<Date\Time> ERROR com.ptc.jca.error <UserName> - ---------- JCA Exception ---------- java.lang.NullPointerException
               at java.base/jdk.internal.math.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1838)
               at java.base/jdk.internal.math.FloatingDecimal.parseDouble(FloatingDecimal.java:110)           at java.base/java.lang.Double.parseDouble(Double.java:543)
               at com.ptc.windchill.pdmlink.change.server.processors.ChangeMonitorProcessor.getReportLegend(ChangeMonitorProcessor.java:1199)
               at org.apache.jsp.netmarkets.jsp.change.changeMonitor_jsp._jspService(changeMonitor_jsp.java:659)
               at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
              at javax.servlet.http.HttpServlet.service(HttpServlet.java:623)
               at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:466)
               at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:379)
               at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:327)
               at javax.servlet.http.HttpServlet.service(HttpServlet.java:623)