public static GeneralCommandLine setupJVMCommandLine(
final String exePath,
final SimpleJavaParameters javaParameters,
final boolean forceDynamicClasspath) {
final GeneralCommandLine commandLine = new GeneralCommandLine();
commandLine.setExePath(exePath);
final ParametersList vmParametersList = javaParameters.getVMParametersList();
commandLine.getEnvironment().putAll(javaParameters.getEnv());
commandLine.setPassParentEnvironment(javaParameters.isPassParentEnvs());
appendParamsEncodingClasspath(javaParameters, commandLine, vmParametersList);
final String mainClass = javaParameters.getMainClass();
String jarPath = javaParameters.getJarPath();
if (mainClass != null) {
commandLine.addParameter(mainClass);
} else if (jarPath != null) {
commandLine.addParameter("-jar");
commandLine.addParameter(jarPath);
}
commandLine.addParameters(javaParameters.getProgramParametersList().getList());
commandLine.withWorkDirectory(javaParameters.getWorkingDirectory());
log.debug("starting process with commandLine: " + commandLine.getCommandLineString());
return commandLine;
}
private static void appendParamsEncodingClasspath(
SimpleJavaParameters javaParameters,
GeneralCommandLine commandLine,
ParametersList parametersList) {
commandLine.addParameters(parametersList.getList());
appendEncoding(javaParameters, commandLine, parametersList);
if (!parametersList.hasParameter("-classpath")
&& !parametersList.hasParameter("-cp")
&& !javaParameters.getClassPath().getPathList().isEmpty()) {
commandLine.addParameter("-classpath");
commandLine.addParameter(javaParameters.getClassPath().getPathsString());
}
}
private static void appendEncoding(
SimpleJavaParameters javaParameters,
GeneralCommandLine commandLine,
ParametersList parametersList) {
// Value of file.encoding and charset of GeneralCommandLine should be in sync in order process's
// input and output be correctly handled.
String encoding = parametersList.getPropertyValue("file.encoding");
if (encoding == null) {
Charset charset = javaParameters.getCharset();
if (charset == null) charset = EncodingManager.getInstance().getDefaultCharset();
commandLine.addParameter("-Dfile.encoding=" + charset.name());
commandLine.withCharset(charset);
} else {
try {
Charset charset = Charset.forName(encoding);
commandLine.withCharset(charset);
} catch (UnsupportedCharsetException ignore) {
} catch (IllegalCharsetNameException ignore) {
}
}
}