[GitHub] [skywalking] qxo edited a comment on issue #3314: ProtectiveShieldMatcher add feature for exclude some class with -Dskywalking_enhance_ignore_class_pattern, so we ignore some package

[GitBox]

qxo edited a comment on issue #3314: ProtectiveShieldMatcher add feature for 
exclude some class with -Dskywalking_enhance_ignore_class_pattern, so we ignore 
some package
URL: https://github.com/apache/skywalking/pull/3314#issuecomment-524563334
 
 
   ```
           final ByteBuddy byteBuddy = new ByteBuddy()
               .with(TypeValidation.of(Config.Agent.IS_OPEN_DEBUGGING_CLASS));
   
           Junction<TypeDescription> ignores = nameStartsWith("net.bytebuddy.");
   
   //change start 
           String ignoreList = 
System.getProperty("skywalking_ignore_class_prefixlist");
           if (ignoreList != null && (ignoreList = ignoreList.trim()).length() 
> 0) {
               logger.info("skywalking_ignore_class_prefixlist:{}",ignoreList);
               for (String p : ignoreList.split("[ ,;:]+")) {
                   ignores = ignores.or(nameStartsWith(p));
               }
           }
   //change end
   
           ignores = ignores.or(nameStartsWith("org.slf4j."))
           .or(nameStartsWith("org.apache.logging."))
           .or(nameStartsWith("org.groovy."))
           .or(nameContains("javassist"))
           .or(nameContains(".asm."))
           .or(nameStartsWith("sun.reflect"))
           .or(allSkyWalkingAgentExcludeToolkit())
           .or(ElementMatchers.<TypeDescription>isSynthetic());
           new AgentBuilder.Default(byteBuddy)
               .ignore(
                   ignores)
               .type(pluginFinder.buildMatch())
               .transform(new Transformer(pluginFinder))
               .with(new Listener())
               .installOn(instrumentation);
   ```
   
   then -Dskywalking_ignore_class_prefixlist=com.jprofiler

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