java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException:
at java.util.regex.Matcher.appendReplacement(Matcher.java:699)
at java.util.regex.Matcher.replaceAll(Matcher.java:813)
at java.lang.String.replaceAll(String.java:2190)
at com.sun.am.AMConfigurator.replace(AMConfigurator.java:1574)
at com.sun.am.AMConfigurator.updateAMConfig(AMConfigurator.java:569)
at com.sun.am.AMConfigurator.main(AMConfigurator.java:399)
at com.sun.am.AMConfigurator.configure(AMConfigurator.java:1879)
at com.sun.enterprise.addons.AddonConfigurationController.invokeApi(AddonConfigurationController.java:270)
at com.sun.enterprise.addons.AddonConfigurationController.configure(AddonConfigurationController.java:169)
at com.sun.enterprise.addons.AddonConfigurationController.configureDAS(AddonConfigurationController.java:136)
at com.sun.enterprise.addons.AddonFacade.configureDAS(AddonFacade.java:110)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.enterprise.cli.commands.AddonControl.configureDAS(AddonControl.java:100)
at com.sun.enterprise.cli.commands.StartDomainCommand.configureAddons(StartDomainCommand.java:486)
at com.sun.enterprise.cli.commands.StartDomainCommand.init(StartDomainCommand.java:455)
at com.sun.enterprise.cli.commands.StartDomainCommand.startDomain(StartDomainCommand.java:123)
at com.sun.enterprise.cli.commands.StartDomainCommand.runCommand(StartDomainCommand.java:215)
at com.sun.enterprise.cli.framework.CLIMain.invokeCommand(CLIMain.java:171)

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