codeql/java/ql/test/query-tests/Telemetry/SupportedExternalApis/SupportedExternalApis.java

import java.time.Duration;
import java.util.HashMap;
import java.util.Map;
import java.io.InputStream;
import java.net.URL;
import java.io.File;
import java.io.FileWriter;
import org.apache.commons.io.FileUtils;

class SupportedExternalApis {
	public static void main(String[] args) throws Exception {
		StringBuilder builder = new StringBuilder(); // uninteresting (parameterless constructor)
		builder.append("foo");  // supported summary
		builder.toString();  // supported summary

		Map<String, Object> map = new HashMap<>(); // uninteresting (parameterless constructor)
		map.put("foo", new Object()); // supported summary

		Duration d = java.time.Duration.ofMillis(1000); // not supported

		URL github = new URL("https://www.github.com/"); // supported summary
		InputStream stream = github.openConnection().getInputStream(); // supported source (getInputStream), supported sink (openConnection)

		new FileWriter(new File("foo")); // supported sink (FileWriter), supported summary (File)
		new URL("http://foo").openStream(); // supported sink (openStream), supported summary (URL)

		FileUtils.deleteDirectory(new File("foo")); // supported negative summary (deleteDirectory), supported summary (File)
	}
}