title: Why/How is IntelliJ causing debug output in Netbeans?
body: <p>Yesterday I was debugging a Java application with Netbeans. (i.e. the application was running with the debugger attached) At the same time I was working with IntelliJ on a Rails application.</p>
  
  <p>I noticed two strange messages in the Netbeans debug output window:</p>
  
  <pre><code>Exception "java.lang.ClassNotFoundException:
  com.intellij.codeInsight.editorActions.FoldingTransferableData$FoldingData"
  while constructing DataFlavor for: application/x-java-jvm-local-objectref;
  class=com.intellij.codeInsight.editorActions.FoldingTransferableData$FoldingData
  </code></pre>
  
  <p>and </p>
  
  <pre><code>Exception "java.lang.ClassNotFoundException:
  com.intellij.codeInsight.editorActions.ReferenceTransferableData$ReferenceData"
  while constructing DataFlavor for: application/x-java-jvm-local-objectref;
  class=com.intellij.codeInsight.editorActions.ReferenceTransferableData$ReferenceData
  </code></pre>
  
  <p>Just out of curiosity: <strong>What was happening here?</strong></p>
  
  <p>If it matters: I'm using Netbeans 7.0.1 and IntelliJ 10.5.2 (Evaluation) with the Ruby plugin.</p>