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    Thrown when an application is trying to use or access an object whose reference equals to null. You are probably trying to use a reference that points to no location in memory as though it were referencing an object.

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via Oracle Community by 250483, 1 year ago
This exception has no message.
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, 1 year ago
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via Stack Overflow by pacman
, 2 years ago
via oracle.com by Unknown author, 1 year ago
This exception has no message.
via oracle.com by Unknown author, 2 years ago
This exception has no message.
java.lang.NullPointerException: 	at java.util.Hashtable.put(Hashtable.java:380)	at java.util.Properties.setProperty(Properties.java:102)	at oracle.portal.wcs.util.DbUtil.runSqlViaJdbc(DbUtil.java:98)	at oracle.portal.wcs.Installer.installViaJdbc(Installer.java:113)