java.lang.nullpointerexception 怎么解决

java.lang.nullpointerexception 怎么解决
com.semaphore.util.plist.JPListUtil parsePList
警告:Problem parsing stream - java.lang.NullPointerException
java.lang.NullPointerException
at com.semaphore.util.plist.PElementAdapter.get(PElementAdapter.java:25)
at com.semaphore.util.plist.PList.get(PList.java:25)
at com.semaphore.util.plist.PElementAdapter.getPath(PElementAdapter.java:31)
at com.semaphore.TinyLoader.findLibs(TinyLoader.java:76)
at com.semaphore.TinyLoader.main(TinyLoader.java:37)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.exe4j.runtime.LauncherEngine.launch(Unknown Source)
at com.exe4j.runtime.WinLauncher.main(Unknown Source)