• File size measurements show the distribution of size of files.
• Files are classified in four categories based on their size (lines of code): 1-100 (very small files), 101-200 (small files), 201-500 (medium size files), 501-1000 (long files), 1001+(very long files).
• It is a good practice to keep files small. Long files may become "bloaters", code that have increased to such gargantuan proportions that they are hard to work with.

• There are 1,217 files with 79,181 lines of code.
• 2 very long files (2,726 lines of code)
• 16 long files (11,052 lines of code)
• 52 medium size files (14,189 lines of codeclsfd_ftr_w_mp_ins)
• 136 small files (19,330 lines of code)
• 1,011 very small files (31,884 lines of code)

There are 468 files with lines longer than 120 characters. In total, there are 1807 long lines.

File	# lines	# units	# long lines
CoreConfigurationImpl.java in apm-agent-core/src/main/java/co/elastic/apm/agent/configuration	1071	62	83
ElasticApmAgent.java in apm-agent-core/src/main/java/co/elastic/apm/agent/bci	811	39	80
DslJsonSerializer.java in apm-agent-core/src/main/java/co/elastic/apm/agent/report/serialize	1655	127	39
ElasticApmTracer.java in apm-agent-core/src/main/java/co/elastic/apm/agent/impl	847	97	33
SamplingProfiler.java in apm-agent-plugins/apm-profiling-plugin/src/main/java/co/elastic/apm/agent/profiler	760	55	30
AgentAttacher.java in apm-agent-attach-cli/src/main/java/co/elastic/apm/attach	603	36	26
LoggingConfigurationImpl.java in apm-agent-core/src/main/java/co/elastic/apm/agent/logging	296	14	24
AbstractSpanInstrumentation.java in apm-agent-plugins/apm-api-plugin/src/main/java/co/elastic/apm/agent/pluginapi	420	51	22
JmxMetricTracker.java in apm-agent-plugins/apm-jmx-plugin/src/main/java/co/elastic/apm/agent/jmx	439	23	21
ServletApiAdvice.java in apm-agent-plugins/apm-servlet-plugin/src/main/java/co/elastic/apm/agent/servlet	243	3	20
BlackholeConnection.java in apm-agent-benchmarks/src/main/java/co/elastic/apm/agent/benchmark/sql	938	54	20
MicrometerMeterRegistrySerializer.java in apm-agent-plugins/apm-micrometer-plugin/src/main/java/co/elastic/apm/agent/micrometer	259	14	19
IndyBootstrap.java in apm-agent-core/src/main/java/co/elastic/apm/agent/bci	260	12	18
ApmServerReporter.java in apm-agent-core/src/main/java/co/elastic/apm/agent/report	316	35	17
CallTree.java in apm-agent-plugins/apm-profiling-plugin/src/main/java/co/elastic/apm/agent/profiler	523	56	16
ReporterConfigurationImpl.java in apm-agent-core/src/main/java/co/elastic/apm/agent/report	249	13	16
CloudMetadataProvider.java in apm-agent-core/src/main/java/co/elastic/apm/agent/impl/metadata	322	12	14
MessagingConfiguration.java in apm-agent-tracer/src/main/java/co/elastic/apm/agent/tracer/configuration	127	7	13
CustomElementMatchers.java in apm-agent-plugin-sdk/src/main/java/co/elastic/apm/agent/sdk/bytebuddy	225	8	13
AbstractIntakeApiHandler.java in apm-agent-core/src/main/java/co/elastic/apm/agent/report	243	17	13
TraceContextImpl.java in apm-agent-core/src/main/java/co/elastic/apm/agent/impl/transaction	518	60	13
Log4j2ConfigurationFactory.java in apm-agent-core/src/main/java/co/elastic/apm/agent/logging	175	14	13
ProfilingConfiguration.java in apm-agent-plugins/apm-profiling-plugin/src/main/java/co/elastic/apm/agent/profiler	195	13	12
CircuitBreakerConfiguration.java in apm-agent-core/src/main/java/co/elastic/apm/agent/impl/circuitbreaker	112	7	12
JaxRsOffsetMappingFactory.java in apm-agent-plugins/apm-jaxrs-plugin/src/main/java/co/elastic/apm/agent/jaxrs	152	13	11
ServletTransactionHelper.java in apm-agent-plugins/apm-servlet-plugin/src/main/java/co/elastic/apm/agent/servlet	239	17	11
SpanConfiguration.java in apm-agent-core/src/main/java/co/elastic/apm/agent/configuration	56	4	11
TransactionInstrumentation.java in apm-agent-plugins/apm-api-plugin/src/main/java/co/elastic/apm/agent/pluginapi	143	17	10
ElasticApmTracerBuilder.java in apm-agent-core/src/main/java/co/elastic/apm/agent/impl	187	13	10
WebConfiguration.java in apm-agent-tracer/src/main/java/co/elastic/apm/agent/tracer/configuration	140	7	9
OtelMetricSerializer.java in apm-agent-plugins/apm-opentelemetry/apm-opentelemetry-metricsdk-plugin/src/main/java/co/elastic/apm/agent/otelmetricsdk	154	12	9
ApmSpanBuilderInstrumentation.java in apm-agent-plugins/apm-opentracing-plugin/src/main/java/co/elastic/apm/agent/opentracingimpl	101	7	9
HttpContextInstrumentation.java in apm-agent-plugins/apm-vertx/apm-vertx4-plugin/src/main/java/co/elastic/apm/agent/vertx/v4/webclient	134	15	9
AgentOverheadMetrics.java in apm-agent-core/src/main/java/co/elastic/apm/agent/metrics/builtin	366	22	9
ExecutorUtils.java in apm-agent-core/src/main/java/co/elastic/apm/agent/util	193	20	9
SQSHelper.java in apm-agent-plugins/apm-aws-sdk/apm-aws-sdk-2-plugin/src/main/java/co/elastic/apm/agent/awssdk/v2/helper	145	13	8
LogbackEcsReformattingHelper.java in apm-agent-plugins/apm-logging-plugin/apm-logback-plugin/apm-logback-plugin-impl/src/main/java/co/elastic/apm/agent/logback/reformatting	131	9	8
GreetingWebClient.java in apm-agent-plugins/apm-spring-webflux/apm-spring-webflux-testapp/src/main/java/co/elastic/apm/agent/springwebflux/testapp	176	23	8
JmxConfiguration.java in apm-agent-plugins/apm-jmx-plugin/src/main/java/co/elastic/apm/agent/jmx	129	1	8
AgentDownloader.java in apm-agent-attach-cli/src/main/java/co/elastic/apm/attach	214	16	8
ApmServerLogFilter.java in apm-agent-core/src/main/java/co/elastic/apm/agent/logging	88	17	8
IndyPluginClassLoaderFactory.java in apm-agent-core/src/main/java/co/elastic/apm/agent/bci	77	3	8
HexUtils.java in apm-agent-tracer/src/main/java/co/elastic/apm/agent/tracer/util	100	14	7
AgentMain.java in elastic-apm-agent-premain/src/main/java/co/elastic/apm/agent/premain	139	9	7
SQSMessageDispatchingInstrumentation.java in apm-agent-plugins/apm-aws-sdk/apm-aws-sdk-1-plugin/src/main/java/co/elastic/apm/agent/awssdk/v1	133	12	7
AWSEventsHelper.java in apm-agent-plugins/apm-awslambda-plugin/src/main/java/co/elastic/apm/agent/awslambda/helper	44	2	7
ApplicationLoadBalancerRequestTransactionHelper.java in apm-agent-plugins/apm-awslambda-plugin/src/main/java/co/elastic/apm/agent/awslambda/helper	128	13	7
ElasticsearchRestClientInstrumentationHelper.java in apm-agent-plugins/apm-es-restclient-plugin/apm-es-restclient-plugin-common/src/main/java/co/elastic/apm/agent/esrestclient	147	10	7
AbstractVertxWebHelper.java in apm-agent-plugins/apm-vertx/apm-vertx-common/src/main/java/co/elastic/apm/agent/vertx	154	10	7
WebInstrumentation.java in apm-agent-plugins/apm-vertx/apm-vertx4-plugin/src/main/java/co/elastic/apm/agent/vertx/v4/web	183	23	7