private void setEnvironment(final RuntimeData data, final ProcessBuilder builder) { final Map<String, String> env = builder.environment(); if (!SystemConfiguration.getInstance().isOnWindows() && SystemConfiguration.getInstance().hasSpecialTclLib()) { env.put("TCL_LIBRARY", "/usr/share/tcl/tcl8.4/"); } if (data.getEnv() != null) { env.putAll(data.getEnv()); } }