Yelijah commented on issue #10001:
URL: https://github.com/apache/skywalking/issues/10001#issuecomment-1324959411
> I am not sure actually. Plugins are contributed by many people. I don't
know all the details. I could only say, we don't instrument any Bootstrap Class
in the agent core.
I know what's wrong, `SkyWalkingAgent` set ignore for `AgentBuilder`, this
will override bytebuddy's default ignore which ignore all classes loaded by
BootstrapClassLoader.
So i have to add one more ignore for all classes loaded by
BootstrapClassLoader
```java
public Default(ByteBuddy byteBuddy) {
this(byteBuddy,
Listener.NoOp.INSTANCE,
DEFAULT_LOCK,
PoolStrategy.Default.FAST,
TypeStrategy.Default.REBASE,
LocationStrategy.ForClassLoader.STRONG,
NativeMethodStrategy.Disabled.INSTANCE,
WarmupStrategy.NoOp.INSTANCE,
TransformerDecorator.NoOp.INSTANCE,
new InitializationStrategy.SelfInjection.Split(),
RedefinitionStrategy.DISABLED,
RedefinitionStrategy.DiscoveryStrategy.SinglePass.INSTANCE,
RedefinitionStrategy.BatchAllocator.ForTotal.INSTANCE,
RedefinitionStrategy.Listener.NoOp.INSTANCE,
RedefinitionStrategy.ResubmissionStrategy.Disabled.INSTANCE,
InjectionStrategy.UsingReflection.INSTANCE,
LambdaInstrumentationStrategy.DISABLED,
DescriptionStrategy.Default.HYBRID,
FallbackStrategy.ByThrowableType.ofOptionalTypes(),
ClassFileBufferStrategy.Default.RETAINING,
InstallationListener.NoOp.INSTANCE,
new RawMatcher.Disjunction(
new RawMatcher.ForElementMatchers(any(),
isBootstrapClassLoader().or(isExtensionClassLoader())),
new
RawMatcher.ForElementMatchers(nameStartsWith("net.bytebuddy.")
.and(not(ElementMatchers.nameStartsWith(NamingStrategy.BYTE_BUDDY_RENAME_PACKAGE
+ ".")))
.or(nameStartsWith("sun.reflect.").or(nameStartsWith("jdk.internal.reflect.")))
.<TypeDescription>or(isSynthetic()))),
Collections.<Transformation>emptyList());
}
```
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