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java.lang.NullPointerException: 	at oracle.apps.ad.rapidwiz.util.CheckerClass.checkMountSpace(CheckerClass.java:2322)	at oracle.apps.ad.rapidwiz.util.CheckerClass.checkFileSpace(CheckerClass.java:1844)	at oracle.apps.ad.rapidwiz.util.CheckerClass.doPreChecks(CheckerClass.java:310)	at oracle.apps.ad.rapidwiz.util.CheckRunner.run(CheckRunner.java:91)	at java.lang.Thread.run(Unknown Source)