How to use

setDefaultCharacterEncoding

method

in

org.gradle.process.JavaForkOptions

public void setDefaultCharacterEncoding(String defaultCharacterEncoding) {
  javaOptions.setDefaultCharacterEncoding(defaultCharacterEncoding);
}

 @TaskAction
 public void exec() {
  workerExecutor.submit(config -> {
   config.setClasspath(getClasspath());
   config.setNamespace(getNamespace());
   config.setFunction(getFunction());
   config.setArgs(getArgs().toArray(new Object[getArgs().size()]));
   config.forkOptions(fork -> {
    fork.setDefaultCharacterEncoding(StandardCharsets.UTF_8.name());
   });
  });
 }
}

private void start() {
 if (!getProject().delete(getTemporaryDir())) {
  throw new GradleException("Cannot clean temporary directory: " + getTemporaryDir().getAbsolutePath());
 }
 FileCollection cp = getProject().files(getTemporaryDir(), getClasspath());
 List<String> middleware = Stream.of(defaultMiddleware.getOrElse(Collections.emptyList()), userMiddleware.getOrElse(Collections.emptyList()))
   .flatMap(List::stream)
   .collect(Collectors.toList());
 clojureExecutor.exec(spec -> {
  spec.setClasspath(cp);
  spec.setMain("gradle-clojure.tools.clojure-nrepl");
  spec.setArgs(port, controlPort, handler.getOrNull(), middleware, Edn.keywordize(contextData));
  spec.forkOptions(fork -> {
   fork.setJvmArgs(getForkOptions().getJvmArgs());
   fork.setMinHeapSize(getForkOptions().getMemoryInitialSize());
   fork.setMaxHeapSize(getForkOptions().getMemoryMaximumSize());
   fork.setDefaultCharacterEncoding(StandardCharsets.UTF_8.name());
  });
 });
}

 @TaskAction
 public void compile() {
  File outputDir = getDestinationDir().get().getAsFile();
  if (!getProject().delete(outputDir)) {
   throw new GradleException("Cannot clean destination directory: " + outputDir.getAbsolutePath());
  }
  if (!outputDir.mkdirs()) {
   throw new GradleException("Cannot create destination directory: " + outputDir.getAbsolutePath());
  }

  FileCollection classpath = getClasspath().plus(getSourceRoots());

  clojureExecutor.exec(spec -> {
   spec.setClasspath(classpath);
   spec.setMain("gradle-clojure.tools.clojurescript-compiler");
   spec.args(getSourceRoots(), getOptions());
   spec.forkOptions(fork -> {
    fork.setJvmArgs(forkOptions.getJvmArgs());
    fork.setMinHeapSize(forkOptions.getMemoryInitialSize());
    fork.setMaxHeapSize(forkOptions.getMemoryMaximumSize());
    fork.setDefaultCharacterEncoding(StandardCharsets.UTF_8.name());
   });
  });
 }
}

private void start() {
 if (!getProject().delete(getTemporaryDir())) {
  throw new GradleException("Cannot clean temporary directory: " + getTemporaryDir().getAbsolutePath());
 }
 FileCollection cp = getProject().files(getTemporaryDir(), getClasspath());
 List<String> middleware = Stream.of(defaultMiddleware.getOrElse(Collections.emptyList()), userMiddleware.getOrElse(Collections.emptyList()))
   .flatMap(List::stream)
   .collect(Collectors.toList());
 clojureExecutor.exec(spec -> {
  spec.setClasspath(cp);
  spec.setMain("gradle-clojure.tools.clojure-nrepl");
  spec.setArgs(port, controlPort, handler.getOrNull(), middleware, Edn.keywordize(contextData));
  spec.forkOptions(fork -> {
   fork.setJvmArgs(getForkOptions().getJvmArgs());
   fork.setMinHeapSize(getForkOptions().getMemoryInitialSize());
   fork.setMaxHeapSize(getForkOptions().getMemoryMaximumSize());
   fork.setDefaultCharacterEncoding(StandardCharsets.UTF_8.name());
  });
 });
}

 @TaskAction
 public void compile() {
  File outputDir = getDestinationDir().get().getAsFile();
  if (!getProject().delete(outputDir)) {
   throw new GradleException("Cannot clean destination directory: " + outputDir.getAbsolutePath());
  }
  if (!outputDir.mkdirs()) {
   throw new GradleException("Cannot create destination directory: " + outputDir.getAbsolutePath());
  }

  FileCollection classpath = getClasspath().plus(getSourceRoots());

  clojureExecutor.exec(spec -> {
   spec.setClasspath(classpath);
   spec.setMain("gradle-clojure.tools.clojurescript-compiler");
   spec.args(getSourceRoots(), getOptions());
   spec.forkOptions(fork -> {
    fork.setJvmArgs(forkOptions.getJvmArgs());
    fork.setMinHeapSize(forkOptions.getMemoryInitialSize());
    fork.setMaxHeapSize(forkOptions.getMemoryMaximumSize());
    fork.setDefaultCharacterEncoding(StandardCharsets.UTF_8.name());
   });
  });
 }
}

  fork.setMinHeapSize(forkOptions.getMemoryInitialSize());
  fork.setMaxHeapSize(forkOptions.getMemoryMaximumSize());
  fork.setDefaultCharacterEncoding(StandardCharsets.UTF_8.name());
 });
});

  fork.setMinHeapSize(forkOptions.getMemoryInitialSize());
  fork.setMaxHeapSize(forkOptions.getMemoryMaximumSize());
  fork.setDefaultCharacterEncoding(StandardCharsets.UTF_8.name());
 });
});

  fork.setMinHeapSize(forkOptions.getMemoryInitialSize());
  fork.setMaxHeapSize(forkOptions.getMemoryMaximumSize());
  fork.setDefaultCharacterEncoding(StandardCharsets.UTF_8.name());
 });
});

  fork.setMinHeapSize(forkOptions.getMemoryInitialSize());
  fork.setMaxHeapSize(forkOptions.getMemoryMaximumSize());
  fork.setDefaultCharacterEncoding(StandardCharsets.UTF_8.name());
 });
});

private void start() {
 workerExecutor.submit(config -> {
  config.setClasspath(getClasspath());
  config.setNamespace("gradle-clojure.tools.clojure-nrepl");
  config.setFunction("start!");
  config.setArgs(port, controlPort);
  config.forkOptions(fork -> {
   fork.setJvmArgs(getForkOptions().getJvmArgs());
   fork.setMinHeapSize(getForkOptions().getMemoryInitialSize());
   fork.setMaxHeapSize(getForkOptions().getMemoryMaximumSize());
   fork.setDefaultCharacterEncoding(StandardCharsets.UTF_8.name());
  });
 });
}

  fork.setMinHeapSize(options.getForkOptions().getMemoryInitialSize());
  fork.setMaxHeapSize(options.getForkOptions().getMemoryMaximumSize());
  fork.setDefaultCharacterEncoding(StandardCharsets.UTF_8.name());
 });
});