public boolean equals(Object o) {
    if (this == o) return true;
    if (!(o instanceof CompilerMessage)) return false;

    final CompilerMessageImpl compilerMessage = (CompilerMessageImpl)o;

    if (myColumn != compilerMessage.myColumn) return false;
    if (myRow != compilerMessage.myRow) return false;
    if (!myCategory.equals(compilerMessage.myCategory)) return false;
    if (myFile != null ? !myFile.equals(compilerMessage.myFile) : compilerMessage.myFile != null) return false;
    if (!myMessage.equals(compilerMessage.myMessage)) return false;

    return true;
  }
public boolean equals(Object o)