CachedAttachmentProvider (co.elastic.apm:apm-agent-attach 1.30.1 API)

java.lang.Object
- co.elastic.apm.attach.CachedAttachmentProvider

All Implemented Interfaces:

net.bytebuddy.agent.ByteBuddyAgent.AttachmentProvider
```
public class CachedAttachmentProvider
extends java.lang.Object
implements net.bytebuddy.agent.ByteBuddyAgent.AttachmentProvider
```
Successive attachments with a tools.jar-based ByteBuddyAgent.AttachmentProvider would lead to the VirtualMachine class to be loaded from multiple class loaders (see ByteBuddyAgent.AttachmentProvider.ForStandardToolsJarVm.attempt()). That leads to a UnsatisfiedLinkError on Java 7 and 8 because the native library libattach can only be loaded by one class loader. By caching the ByteBuddyAgent.AttachmentProvider.Accessor, the same VirtualMachine class is reused so that there is no attempt to load the libattach library from another class loader.

- Nested Class Summary
  - Nested classes/interfaces inherited from interface net.bytebuddy.agent.ByteBuddyAgent.AttachmentProvider
    net.bytebuddy.agent.ByteBuddyAgent.AttachmentProvider.Accessor, net.bytebuddy.agent.ByteBuddyAgent.AttachmentProvider.Compound, net.bytebuddy.agent.ByteBuddyAgent.AttachmentProvider.ForEmulatedAttachment, net.bytebuddy.agent.ByteBuddyAgent.AttachmentProvider.ForJ9Vm, net.bytebuddy.agent.ByteBuddyAgent.AttachmentProvider.ForModularizedVm, net.bytebuddy.agent.ByteBuddyAgent.AttachmentProvider.ForStandardToolsJarVm, net.bytebuddy.agent.ByteBuddyAgent.AttachmentProvider.ForUserDefinedToolsJar
- Field Summary
  - Fields inherited from interface net.bytebuddy.agent.ByteBuddyAgent.AttachmentProvider
    DEFAULT
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  net.bytebuddy.agent.ByteBuddyAgent.AttachmentProvider.Accessor attempt()
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - attempt
```
public net.bytebuddy.agent.ByteBuddyAgent.AttachmentProvider.Accessor attempt()
```
    Specified by:
    
    attempt in interface net.bytebuddy.agent.ByteBuddyAgent.AttachmentProvider