docs: public boolean compileFromDDL(final String jarOutputPath, final String... ddlFilePaths) {
          if (ddlFilePaths.length == 0) {
              compilerLog.error("At least one DDL file is required.");
              return false;
          }
          List<VoltCompilerReader> ddlReaderList;
          try {
              ddlReaderList = DDLPathsToReaderList(ddlFilePaths);
          }
          catch (VoltCompilerException e) {
              compilerLog.error("Unable to open DDL file.", e);
              return false;
          }
          return compileInternalToFile(jarOutputPath, null, null, ddlReaderList, null);
      }