打开部分ppt文件，出现NPE错误
这个的load的NPE堆栈 和前6个都不一样
文件放这里了 https://netcut.cn/1go3hfr7u
错误如下：
- Code: Select all
java.lang.NullPointerException
at com.spire.presentation.packages.sprdlp.getTheme(Unknown Source)
at com.spire.presentation.drawing.ColorFormat.sprㆀ⌹(Unknown Source)
at com.spire.presentation.drawing.ColorFormat.spr┯‘(Unknown Source)
at com.spire.presentation.drawing.LineFillFormat.spr⌫≃(Unknown Source)
at com.spire.presentation.TextLineFormat.spr┡┬(Unknown Source)
at com.spire.presentation.PortionFormatEx.spr▔┺(Unknown Source)
at com.spire.presentation.TextCharacterProperties.spr〧┻(Unknown Source)
at com.spire.presentation.TextCharacterProperties.<init>(Unknown Source)
at com.spire.presentation.PortionEx.<init>(Unknown Source)
at com.spire.presentation.ParagraphEx.spr└┽(Unknown Source)
at com.spire.presentation.ParagraphEx.<init>(Unknown Source)
at com.spire.presentation.collections.ParagraphList.spr︴┭(Unknown Source)
at com.spire.presentation.packages.sprkbp.spr┢∯(Unknown Source)
at com.spire.presentation.packages.sprkbp.<init>(Unknown Source)
at com.spire.presentation.packages.sprkbp.spr∬┹(Unknown Source)
at com.spire.presentation.packages.sprune.<init>(Unknown Source)
at com.spire.presentation.collections.ShapeList.spr┩┹(Unknown Source)
at com.spire.presentation.collections.ShapeList.spr┖┺(Unknown Source)
at com.spire.presentation.GroupShape.<init>(Unknown Source)
at com.spire.presentation.GroupShape.<init>(Unknown Source)
at com.spire.presentation.ActiveSlide.spr∮┸(Unknown Source)
at com.spire.presentation.ActiveSlide.<init>(Unknown Source)
at com.spire.presentation.packages.sprdlp.<init>(Unknown Source)
at com.spire.presentation.packages.sprskp.spr⅓┹(Unknown Source)
at com.spire.presentation.packages.sprskp.spr┅┭(Unknown Source)
at com.spire.presentation.packages.sprskp.spr〠┹(Unknown Source)
at com.spire.presentation.packages.sprskp.<init>(Unknown Source)
at com.spire.presentation.packages.sprskp.<init>(Unknown Source)
at com.spire.presentation.Presentation.spr┲┹(Unknown Source)
at com.spire.presentation.Presentation.loadFromStream(Unknown Source)
at Main.processThumbnails(Main.java:44)
at Main.lambda$main$1(Main.java:86)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
