ReferenceCollector (javaagent-tooling 0.12.0 API)

java.lang.Object
- io.opentelemetry.javaagent.tooling.muzzle.collector.ReferenceCollector

```
public class ReferenceCollector
extends Object
```
LinkedHashMap is used for reference map to guarantee a deterministic order of iteration, so that bytecode generated based on it would also be deterministic.

Constructor Summary

Constructors
Constructor Description

ReferenceCollector()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`collectReferencesFrom(String adviceClassName)`	Traverse a graph of classes starting from `adviceClassName` and collect all references to both internal (instrumentation) and external classes.
`Map<String,Reference>`	`getReferences()`
`List<String>`	`getSortedHelperClasses()`

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ReferenceCollector
```
public ReferenceCollector()
```
- Method Detail
  - collectReferencesFrom
```
public void collectReferencesFrom(String adviceClassName)
```
    Traverse a graph of classes starting from adviceClassName and collect all references to both internal (instrumentation) and external classes.
    The graph of classes is traversed until a non-instrumentation (external) class is encountered.
    This class is only called at compile time by the MuzzleCodeGenerationPlugin ByteBuddy plugin.
    
    Parameters:
    
    adviceClassName - Starting point for generating references.
    
    See Also:
    
    InstrumentationClassPredicate
  - getReferences
```
public Map<String,Reference> getReferences()
```
  - getSortedHelperClasses
```
public List<String> getSortedHelperClasses()
```