Working fine as independent But NullPointerException on save click

[hafeez-iqbal]

unable to understand the issue as it working as independent sample/test app but when adding to my existing project generate error by clicking on save button.

java.lang.NullPointerException: Attempt to invoke virtual method 'void java.io.InputStream.close()' on a null object reference
at com.coremedia.iso.PropertyBoxParserImpl.(PropertyBoxParserImpl.java:67)
at com.coremedia.iso.IsoFile.(IsoFile.java:59)
at com.googlecode.mp4parser.authoring.container.mp4.MovieCreator.build(MovieCreator.java:49)
at life.knowledge4.videotrimmer.utils.TrimVideoUtils.genVideoUsingMp4Parser(TrimVideoUtils.java:71)
at life.knowledge4.videotrimmer.utils.TrimVideoUtils.startTrim(TrimVideoUtils.java:65)
at life.knowledge4.videotrimmer.K4LVideoTrimmer$11.execute(K4LVideoTrimmer.java:293)
at life.knowledge4.videotrimmer.utils.BackgroundExecutor$Task.run(BackgroundExecutor.java:212)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:423)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:269)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)

[imran-samed]

any solution from anyone about this, bcoz i'm also facing the same issue.

[imran-samed]

@hafeez-iqbal you find anything about this.