| Package | Description | 
|---|---|
| com.hazelcast.client.connection.nio | Contains classes related to New IO for com.hazelcast.client.connection | 
| com.hazelcast.internal.cluster.impl | This package contains the implementation of the cluster functionality. | 
| com.hazelcast.internal.diagnostics | Contains functionality what is happening in a HazelcastInstance. | 
| com.hazelcast.internal.metrics | Contains the Hazelcast Metrics. | 
| com.hazelcast.internal.metrics.impl | Contains the  MetricsRegistryimplementation. | 
| com.hazelcast.internal.metrics.metricsets | Contains all kinds of metric packs. | 
| com.hazelcast.internal.partition.impl | Contains the actual implementation of the  InternalPartitionService. | 
| com.hazelcast.nio.tcp | Contains functionality for the TCP/IP Networking between cluster members This whole package is internal and no compatibility will be provided. | 
| com.hazelcast.nio.tcp.nonblocking | Contains the non blocking  TcpIpConnectionMonitor. | 
| com.hazelcast.nio.tcp.spinning | Contains the implementation of the  SpinningIOThreadingModel. | 
| com.hazelcast.spi.impl | Contains implementations for Hazelcast SPI. | 
| com.hazelcast.spi.impl.eventservice.impl | Contains the code for the  InternalEventServiceimplementation. | 
| com.hazelcast.spi.impl.operationexecutor.impl | Contains the  OperationExecutorImplcode. | 
| com.hazelcast.spi.impl.operationservice.impl | Contains the code for the  InternalOperationServiceimplementation. | 
| com.hazelcast.spi.impl.proxyservice.impl | Contains the implementation of the  InternalProxyService. | 
| com.hazelcast.util.executor | This package contains classes related to Util.Executor  | 
| Class and Description | 
|---|
| Probe Annotation that can be placed on a field or method of an object to indicate that it should be tracked by the
 MetricsRegistry when the  MetricsRegistry.scanAndRegister(Object, String)is called. | 
| Class and Description | 
|---|
| Probe Annotation that can be placed on a field or method of an object to indicate that it should be tracked by the
 MetricsRegistry when the  MetricsRegistry.scanAndRegister(Object, String)is called. | 
| Class and Description | 
|---|
| MetricsRegistry The MetricsRegistry is responsible for recording all kinds of Hazelcast/JVM specific information to
 help out with issues like performance or stability problems. | 
| Class and Description | 
|---|
| DoubleGauge A DoubleGauge is {link Metric} where a particular double value is read instantaneous. | 
| DoubleProbeFunction A  ProbeFunctionthat provides a double value and can be used to create a probe usingMetricsRegistry#register(Object, String, DoubleProbeFunction) | 
| LongGauge A LongGauge is  Metricwhere a particular long value is read instantaneous. | 
| LongProbeFunction A  ProbeFunctionthat provides a long value and can be used to create a probe usingMetricsRegistry#register(Object, String, LongProbeFunction) | 
| Metric A Metric is a 'quantitative measure' of something for example the number of operations pending, number of operations
 per second being executed etc. | 
| MetricsRegistry The MetricsRegistry is responsible for recording all kinds of Hazelcast/JVM specific information to
 help out with issues like performance or stability problems. | 
| ProbeFunction A marker interface. | 
| ProbeLevel With the probe level one can control which probes are being tracked by the MetricsRegistry and which ones are not. | 
| Class and Description | 
|---|
| DoubleGauge A DoubleGauge is {link Metric} where a particular double value is read instantaneous. | 
| DoubleProbeFunction A  ProbeFunctionthat provides a double value and can be used to create a probe usingMetricsRegistry#register(Object, String, DoubleProbeFunction) | 
| LongProbeFunction A  ProbeFunctionthat provides a long value and can be used to create a probe usingMetricsRegistry#register(Object, String, LongProbeFunction) | 
| MetricsRegistry The MetricsRegistry is responsible for recording all kinds of Hazelcast/JVM specific information to
 help out with issues like performance or stability problems. | 
| ProbeLevel With the probe level one can control which probes are being tracked by the MetricsRegistry and which ones are not. | 
| Class and Description | 
|---|
| MetricsRegistry The MetricsRegistry is responsible for recording all kinds of Hazelcast/JVM specific information to
 help out with issues like performance or stability problems. | 
| Class and Description | 
|---|
| Probe Annotation that can be placed on a field or method of an object to indicate that it should be tracked by the
 MetricsRegistry when the  MetricsRegistry.scanAndRegister(Object, String)is called. | 
| Class and Description | 
|---|
| MetricsRegistry The MetricsRegistry is responsible for recording all kinds of Hazelcast/JVM specific information to
 help out with issues like performance or stability problems. | 
| Probe Annotation that can be placed on a field or method of an object to indicate that it should be tracked by the
 MetricsRegistry when the  MetricsRegistry.scanAndRegister(Object, String)is called. | 
| Class and Description | 
|---|
| MetricsRegistry The MetricsRegistry is responsible for recording all kinds of Hazelcast/JVM specific information to
 help out with issues like performance or stability problems. | 
| Probe Annotation that can be placed on a field or method of an object to indicate that it should be tracked by the
 MetricsRegistry when the  MetricsRegistry.scanAndRegister(Object, String)is called. | 
| Class and Description | 
|---|
| MetricsRegistry The MetricsRegistry is responsible for recording all kinds of Hazelcast/JVM specific information to
 help out with issues like performance or stability problems. | 
| Probe Annotation that can be placed on a field or method of an object to indicate that it should be tracked by the
 MetricsRegistry when the  MetricsRegistry.scanAndRegister(Object, String)is called. | 
| Class and Description | 
|---|
| MetricsRegistry The MetricsRegistry is responsible for recording all kinds of Hazelcast/JVM specific information to
 help out with issues like performance or stability problems. | 
| Class and Description | 
|---|
| MetricsProvider To be implemented by an object that can provide metrics (so has a bunch of probes). | 
| MetricsRegistry The MetricsRegistry is responsible for recording all kinds of Hazelcast/JVM specific information to
 help out with issues like performance or stability problems. | 
| Probe Annotation that can be placed on a field or method of an object to indicate that it should be tracked by the
 MetricsRegistry when the  MetricsRegistry.scanAndRegister(Object, String)is called. | 
| Class and Description | 
|---|
| MetricsProvider To be implemented by an object that can provide metrics (so has a bunch of probes). | 
| MetricsRegistry The MetricsRegistry is responsible for recording all kinds of Hazelcast/JVM specific information to
 help out with issues like performance or stability problems. | 
| Probe Annotation that can be placed on a field or method of an object to indicate that it should be tracked by the
 MetricsRegistry when the  MetricsRegistry.scanAndRegister(Object, String)is called. | 
| Class and Description | 
|---|
| MetricsProvider To be implemented by an object that can provide metrics (so has a bunch of probes). | 
| MetricsRegistry The MetricsRegistry is responsible for recording all kinds of Hazelcast/JVM specific information to
 help out with issues like performance or stability problems. | 
| Probe Annotation that can be placed on a field or method of an object to indicate that it should be tracked by the
 MetricsRegistry when the  MetricsRegistry.scanAndRegister(Object, String)is called. | 
| Class and Description | 
|---|
| MetricsProvider To be implemented by an object that can provide metrics (so has a bunch of probes). | 
| MetricsRegistry The MetricsRegistry is responsible for recording all kinds of Hazelcast/JVM specific information to
 help out with issues like performance or stability problems. | 
| Probe Annotation that can be placed on a field or method of an object to indicate that it should be tracked by the
 MetricsRegistry when the  MetricsRegistry.scanAndRegister(Object, String)is called. | 
| Class and Description | 
|---|
| Probe Annotation that can be placed on a field or method of an object to indicate that it should be tracked by the
 MetricsRegistry when the  MetricsRegistry.scanAndRegister(Object, String)is called. | 
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