Java keeping jar in use by jarclassloader/urlclassloader

问题

I am loading a jar file with a JarClassLoader. After the jar file is loaded, I want to delete the file. Everything works fine except for deleting the file because the file is kept in use by the Java jvm. How do I unlock the jar? I am already closing all my inputstreams and closing the urlclassloader.

Thank you, Ridz

来源：https://stackoverflow.com/questions/18834432/java-keeping-jar-in-use-by-jarclassloader-urlclassloader