Ignore janino classloader (#7710)

Fixes #7670

These obscure classloaders should be ignored completely, they process
in-line class creation and should not branch out to interactions that
are useful in distributed tracing. These two are responsible for outages
recently in many of our applications due to driving up memory usage from
WeakKey caching. In some cases, janino processing has ran wild and
stimulated over 5.7mil WeakKey objects accounting for close to 200MB of
heap.

Author: robododge

Diff for: javaagent-tooling/src/main/java/io/opentelemetry/javaagent/tooling/ignore/GlobalIgnoredTypesConfigurer.java

@@ -119,6 +119,8 @@ private static void configureIgnoredClassLoaders(IgnoredTypesBuilder builder) {
             "org.springframework.context.support.ContextTypeMatchClassLoader$ContextOverridingClassLoader")
         .ignoreClassLoader("sun.misc.Launcher$ExtClassLoader")
         .ignoreClassLoader("org.openjdk.nashorn.internal.runtime.ScriptLoader")
+        .ignoreClassLoader("org.codehaus.janino.ByteArrayClassLoader")
+        .ignoreClassLoader("org.eclipse.persistence.internal.jaxb.JaxbClassLoader")
         .ignoreClassLoader(AgentClassLoader.class.getName())
         .ignoreClassLoader(ExtensionClassLoader.class.getName());