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

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This exception has no message.
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at java.util.regex.Matcher.appendReplacement(
at java.util.regex.Matcher.replaceAll(
at java.lang.String.replaceAll(
at com.sun.enterprise.addons.AddonConfigurationController.invokeApi(
at com.sun.enterprise.addons.AddonConfigurationController.configure(
at com.sun.enterprise.addons.AddonConfigurationController.configureDAS(
at com.sun.enterprise.addons.AddonFacade.configureDAS(
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(
at sun.reflect.DelegatingMethodAccessorImpl.invoke(
at java.lang.reflect.Method.invoke(
at com.sun.enterprise.cli.commands.AddonControl.configureDAS(
at com.sun.enterprise.cli.commands.StartDomainCommand.configureAddons(
at com.sun.enterprise.cli.commands.StartDomainCommand.init(
at com.sun.enterprise.cli.commands.StartDomainCommand.startDomain(
at com.sun.enterprise.cli.commands.StartDomainCommand.runCommand(
at com.sun.enterprise.cli.framework.CLIMain.invokeCommand(

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