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java.lang.NullPointerException: 	at java.util.regex.Matcher.appendReplacement(Matcher.java:758)	at java.util.regex.Matcher.replaceAll(Matcher.java:906)	at java.lang.String.replaceAll(String.java:2162)	at org.mule.module.http.internal.request.HttpRequesterRequestBuilder.replaceUriParams(HttpRequesterRequestBuilder.java:40)	at org.mule.module.http.internal.request.DefaultHttpRequester.replaceUriParams(DefaultHttpRequester.java:382)	at org.mule.module.http.internal.request.DefaultHttpRequester.resolveURI(DefaultHttpRequester.java:361)	at org.mule.module.http.internal.request.DefaultHttpRequester.createHttpRequest(DefaultHttpRequester.java:321)	at org.mule.module.http.internal.request.DefaultHttpRequester.innerProcess(DefaultHttpRequester.java:276)	at org.mule.module.http.internal.request.DefaultHttpRequester.processBlocking(DefaultHttpRequester.java:186)	at org.mule.processor.AbstractNonBlockingMessageProcessor.process(AbstractNonBlockingMessageProcessor.java:43)	at org.mule.execution.ExceptionToMessagingExceptionExecutionInterceptor.execute(ExceptionToMessagingExceptionExecutionInterceptor.java:24)	at org.mule.execution.MessageProcessorNotificationExecutionInterceptor.execute(MessageProcessorNotificationExecutionInterceptor.java:107)	at org.mule.execution.MessageProcessorExecutionTemplate.execute(MessageProcessorExecutionTemplate.java:44)	at org.mule.processor.BlockingProcessorExecutor.executeNext(BlockingProcessorExecutor.java:85)	at org.mule.processor.BlockingProcessorExecutor.execute(BlockingProcessorExecutor.java:56)	at org.mule.execution.ExceptionToMessagingExceptionExecutionInterceptor.execute(ExceptionToMessagingExceptionExecutionInterceptor.java:24)	at org.mule.execution.MessageProcessorExecutionTemplate.execute(MessageProcessorExecutionTemplate.java:44)	at org.mule.processor.BlockingProcessorExecutor.executeNext(BlockingProcessorExecutor.java:94)	at org.mule.processor.BlockingProcessorExecutor.execute(BlockingProcessorExecutor.java:56)	at org.mule.processor.AsyncInterceptingMessageProcessor.process(AsyncInterceptingMessageProcessor.java:102)	at org.mule.execution.ExceptionToMessagingExceptionExecutionInterceptor.execute(ExceptionToMessagingExceptionExecutionInterceptor.java:24)	at org.mule.execution.MessageProcessorNotificationExecutionInterceptor.execute(MessageProcessorNotificationExecutionInterceptor.java:107)	at org.mule.execution.MessageProcessorExecutionTemplate.execute(MessageProcessorExecutionTemplate.java:44)	at org.mule.processor.BlockingProcessorExecutor.executeNext(BlockingProcessorExecutor.java:94)	at org.mule.processor.BlockingProcessorExecutor.execute(BlockingProcessorExecutor.java:56)	at org.mule.construct.DynamicPipelineMessageProcessor.process(DynamicPipelineMessageProcessor.java:55)	at org.mule.execution.ExceptionToMessagingExceptionExecutionInterceptor.execute(ExceptionToMessagingExceptionExecutionInterceptor.java:24)	at org.mule.execution.MessageProcessorNotificationExecutionInterceptor.execute(MessageProcessorNotificationExecutionInterceptor.java:107)	at org.mule.execution.MessageProcessorExecutionTemplate.execute(MessageProcessorExecutionTemplate.java:44)	at org.mule.processor.BlockingProcessorExecutor.executeNext(BlockingProcessorExecutor.java:85)	at org.mule.processor.BlockingProcessorExecutor.execute(BlockingProcessorExecutor.java:56)	at org.mule.execution.ExceptionToMessagingExceptionExecutionInterceptor.execute(ExceptionToMessagingExceptionExecutionInterceptor.java:24)	at org.mule.execution.MessageProcessorExecutionTemplate.execute(MessageProcessorExecutionTemplate.java:44)	at org.mule.processor.BlockingProcessorExecutor.executeNext(BlockingProcessorExecutor.java:94)	at org.mule.processor.BlockingProcessorExecutor.execute(BlockingProcessorExecutor.java:56)	at org.mule.interceptor.AbstractEnvelopeInterceptor.processBlocking(AbstractEnvelopeInterceptor.java:58)	at org.mule.processor.AbstractRequestResponseMessageProcessor.process(AbstractRequestResponseMessageProcessor.java:47)	at org.mule.execution.ExceptionToMessagingExceptionExecutionInterceptor.execute(ExceptionToMessagingExceptionExecutionInterceptor.java:24)	at org.mule.execution.MessageProcessorNotificationExecutionInterceptor.execute(MessageProcessorNotificationExecutionInterceptor.java:107)	at org.mule.execution.MessageProcessorExecutionTemplate.execute(MessageProcessorExecutionTemplate.java:44)	at org.mule.processor.BlockingProcessorExecutor.executeNext(BlockingProcessorExecutor.java:94)	at org.mule.processor.BlockingProcessorExecutor.execute(BlockingProcessorExecutor.java:56)	at org.mule.processor.AbstractFilteringMessageProcessor.process(AbstractFilteringMessageProcessor.java:41)	at org.mule.execution.ExceptionToMessagingExceptionExecutionInterceptor.execute(ExceptionToMessagingExceptionExecutionInterceptor.java:24)	at org.mule.execution.MessageProcessorNotificationExecutionInterceptor.execute(MessageProcessorNotificationExecutionInterceptor.java:107)