Include APM service.name in Beats input exceptions

[ppf2]

To help users trace the origin of problematic events coming from APM (APM Server -> Logstash), it will be helpful to include the APM service.name, other useful identification metadata and even the specific problematic event object in the exception message (example of an org.logstash.FieldReference$IllegalSyntaxException):

[2022-06-10T04:59:43,458][WARN ][io.netty.channel.DefaultChannelPipeline][apm_beats_listener_8081][apm_beats_listener_8081] An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception.
org.logstash.FieldReference$IllegalSyntaxException: Invalid FieldReference: `ZUUL::EXCEPTION:Connect to <host> [<host><ip>] failed: connect timed out:500`
	at org.logstash.FieldReference$StrictTokenizer.tokenize(FieldReference.java:321) ~[logstash-core.jar:?]
	at org.logstash.FieldReference.parse(FieldReference.java:222) ~[logstash-core.jar:?]
	at org.logstash.FieldReference.parseToCache(FieldReference.java:213) ~[logstash-core.jar:?]
	at org.logstash.FieldReference.from(FieldReference.java:136) ~[logstash-core.jar:?]
	at org.logstash.ConvertedMap.put(ConvertedMap.java:94) ~[logstash-core.jar:?]
	at org.logstash.ConvertedMap.newFromMap(ConvertedMap.java:74) ~[logstash-core.jar:?]
	at org.logstash.ext.JrubyEventExtLibrary$RubyEvent.initializeFallback(JrubyEventExtLibrary.java:333) ~[logstash-core.jar:?]
	at org.logstash.ext.JrubyEventExtLibrary$RubyEvent.ruby_initialize(JrubyEventExtLibrary.java:102) ~[logstash-core.jar:?]
	at usr.share.logstash.logstash_minus_core.lib.logstash.plugins.event_factory_support.RUBY$method$new_event$0(/usr/share/logstash/logstash-core/lib/logstash/plugins/event_factory_support.rb:40) ~[?:?]
	at usr.share.logstash.vendor.bundle.jruby.$2_dot_5_dot_0.gems.logstash_minus_input_minus_beats_minus_6_dot_2_dot_6_minus_java.lib.logstash.inputs.beats.message_listener.RUBY$method$onNewMessage$0(/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-input-beats-6.2.6-java/lib/logstash/inputs/beats/message_listener.rb:45) ~[?:?]
	at usr.share.logstash.vendor.bundle.jruby.$2_dot_5_dot_0.gems.logstash_minus_input_minus_beats_minus_6_dot_2_dot_6_minus_java.lib.logstash.inputs.beats.message_listener.RUBY$method$onNewMessage$0$__VARARGS__(/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-input-beats-6.2.6-java/lib/logstash/inputs/beats/message_listener.rb:33) ~[?:?]
	at org.jruby.internal.runtime.methods.CompiledIRMethod.call(CompiledIRMethod.java:80) ~[jruby-complete-9.2.20.1.jar:?]
	at org.jruby.internal.runtime.methods.MixedModeIRMethod.call(MixedModeIRMethod.java:70) ~[jruby-complete-9.2.20.1.jar:?]
	at org.jruby.gen.LogStash$$Inputs$$Beats$$MessageListener_993809485.onNewMessage(org/jruby/gen/LogStash$$Inputs$$Beats$$MessageListener_993809485.gen:13) ~[?:?]
	at org.logstash.beats.BeatsHandler.channelRead0(BeatsHandler.java:52) ~[logstash-input-beats-6.2.6.jar:?]
	at org.logstash.beats.BeatsHandler.channelRead0(BeatsHandler.java:12) ~[logstash-input-beats-6.2.6.jar:?]
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99) ~[netty-all-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-all-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-all-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-all-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324) ~[netty-all-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296) ~[netty-all-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-all-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:61) ~[netty-all-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:370) ~[netty-all-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.util.concurrent.DefaultEventExecutor.run(DefaultEventExecutor.java:66) ~[netty-all-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) [netty-all-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) [netty-all-4.1.65.Final.jar:4.1.65.Final]
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [netty-all-4.1.65.Final.jar:4.1.65.Final]
	at java.lang.Thread.run(Thread.java:829) [?:?]