[bcrypt-passwordencoder-checker] java.io.UncheckedIOException: java.nio.charset.MalformedInputException: Input length = 1

[sergioasantiago]

In some cases, bcrypt-passwordencoder-checker is throwing the exception below.

Suspicion is that there are some edge cases where the file is empty or contain malformed chars

java.io.UncheckedIOException: java.nio.charset.MalformedInputException: Input length = 1
	at java.base/java.nio.file.FileChannelLinesSpliterator.readLine(FileChannelLinesSpliterator.java:176)
	at java.base/java.nio.file.FileChannelLinesSpliterator.tryAdvance(FileChannelLinesSpliterator.java:104)
	at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127)
	at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230)
	at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.anyMatch(ReferencePipeline.java:528)
	at com.freenow.sauron.plugins.BcryptPasswordEncoderChecker.containsBcryptPasswordEncoder(BcryptPasswordEncoderChecker.java:111)
	at com.freenow.sauron.plugins.BcryptPasswordEncoderChecker.lambda$hasAnyFileDeclaringBcryptPasswordEncoder$4(BcryptPasswordEncoderChecker.java:92)
	at java.base/java.nio.file.Files.lambda$find$2(Files.java:3948)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:176)
	at java.base/java.util.Spliterators$IteratorSpliterator.tryAdvance(Spliterators.java:1812)
	at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127)
	at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:150)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:543)
	at com.freenow.sauron.plugins.BcryptPasswordEncoderChecker.hasAnyFileDeclaringBcryptPasswordEncoder(BcryptPasswordEncoderChecker.java:97)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:176)
	at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
	at java.base/java.util.stream.ReduceOps$5.evaluateSequential(ReduceOps.java:257)
	at java.base/java.util.stream.ReduceOps$5.evaluateSequential(ReduceOps.java:248)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.count(ReferencePipeline.java:605)
	at com.freenow.sauron.plugins.BcryptPasswordEncoderChecker.lambda$apply$0(BcryptPasswordEncoderChecker.java:49)
	at java.base/java.util.Optional.ifPresent(Optional.java:183)
	at com.freenow.sauron.plugins.BcryptPasswordEncoderChecker.apply(BcryptPasswordEncoderChecker.java:39)
	at com.freenow.sauron.service.PipelineService.lambda$runPlugin$1(PipelineService.java:119)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
	at com.freenow.sauron.service.PipelineService.runPlugin(PipelineService.java:115)
	at com.freenow.sauron.service.PipelineService.lambda$process$0(PipelineService.java:87)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
	at com.freenow.sauron.service.PipelineService.process(PipelineService.java:87)
	at com.freenow.sauron.handler.impl.RabbitmqRequestHandler.consume(RabbitmqRequestHandler.java:60)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.springframework.messaging.handler.invocation.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:171)
	at org.springframework.messaging.handler.invocation.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:120)
	at org.springframework.amqp.rabbit.listener.adapter.HandlerAdapter.invoke(HandlerAdapter.java:53)
	at org.springframework.amqp.rabbit.listener.adapter.MessagingMessageListenerAdapter.invokeHandler(MessagingMessageListenerAdapter.java:220)
	at org.springframework.amqp.rabbit.listener.adapter.MessagingMessageListenerAdapter.invokeHandlerAndProcessResult(MessagingMessageListenerAdapter.java:148)
	at org.springframework.amqp.rabbit.listener.adapter.MessagingMessageListenerAdapter.onMessage(MessagingMessageListenerAdapter.java:133)
	at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:1591)
	at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.actualInvokeListener(AbstractMessageListenerContainer.java:1510)
	at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:1498)
	at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:1489)
	at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.executeListener(AbstractMessageListenerContainer.java:1433)
	at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.doReceiveAndExecute(SimpleMessageListenerContainer.java:970)
	at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.receiveAndExecute(SimpleMessageListenerContainer.java:916)
	at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.access$1600(SimpleMessageListenerContainer.java:83)
	at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.mainLoop(SimpleMessageListenerContainer.java:1291)
	at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.run(SimpleMessageListenerContainer.java:1197)
	at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: java.nio.charset.MalformedInputException: Input length = 1
	at java.base/java.nio.charset.CoderResult.throwException(CoderResult.java:274)
	at java.base/sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:339)
	at java.base/sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)
	at java.base/java.io.BufferedReader.fill(BufferedReader.java:161)
	at java.base/java.io.BufferedReader.readLine(BufferedReader.java:326)
	at java.base/java.io.BufferedReader.readLine(BufferedReader.java:392)
	at java.base/java.nio.file.FileChannelLinesSpliterator.readLine(FileChannelLinesSpliterator.java:174)
	... 62 common frames omitted