Skip to content

Instantly share code, notes, and snippets.

View swankjesse's full-sized avatar
🍩
busy busy

Jesse Wilson swankjesse

🍩
busy busy
6.5k followers · 5 following
View GitHub Profile
@swankjesse
swankjesse / HostSelectionInterceptor.java
Last active June 4, 2026 23:00
This OkHttp application interceptor will replace the destination hostname in the request URL.
import java.io.IOException;
import okhttp3.HttpUrl;
import okhttp3.Interceptor;
import okhttp3.OkHttpClient;
import okhttp3.Request;
/** An interceptor that allows runtime changes to the URL hostname. */
public final class HostSelectionInterceptor implements Interceptor {
private volatile String host;
@swankjesse
swankjesse / ObsoleteUrlFactory.java
Created March 3, 2019 14:26
/*
* Copyright (C) 2014 Square, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
@swankjesse
swankjesse / play_8wrmh1kk80rk0hz635gscpare.html
Created February 3, 2026 12:37
Rounds HTML source
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Calico</title>
<meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1">
<meta name="theme-color" content="#666666">
<meta property="og:image" content="https://rounds.app/game/8wrmh1kk80rk0hz635gscpare/og-image.png">
@swankjesse
swankjesse / QuotePreservingCookieJar.java
Created October 4, 2016 00:57
Like our JavaNetCookieJar, but preserve quote characters.
/*
* Copyright (C) 2016 Square, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
@swankjesse
swankjesse / Fibonacci.kt
Created January 12, 2020 16:00
import java.math.BigInteger
interface Fibonacci {
fun fib(n: Int): Int
}
object LawfulGood : Fibonacci {
override fun fib(n: Int): Int {
check(n >= 0) { "fib is undefined for negative values: $n" }
return when (n) {
@swankjesse
swankjesse / SuspendReturnTest.kt
Created November 3, 2025 22:22
Demonstrates a bug in the Kotlin 2.2.21 compiler
import assertk.assertThat
import assertk.assertions.isEqualTo
import kotlin.test.Test
import kotlinx.coroutines.coroutineScope
import kotlinx.coroutines.launch
import kotlinx.coroutines.runBlocking
class SuspendReturnTest {
@Test
@swankjesse
swankjesse / RuntimePropertiesDecoder.kt
Created September 17, 2025 14:18
Attach bonus properties to a protobuf message
package com.squareup.wire.samples
import com.squareup.wire.Message
import com.squareup.wire.ProtoAdapter
import com.squareup.wire.ProtoReader32
import com.squareup.wire.ProtoWriter
import com.squareup.wire.forEachTag
import okio.Buffer
/**
@swankjesse
swankjesse / ObsoleteApacheClient.java
Last active June 6, 2025 05:27
/*
* Copyright (C) 2013 Square, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
@swankjesse
swankjesse / ApngWriter.kt
Created April 10, 2025 13:51
import java.awt.Rectangle
import java.io.Closeable
import java.io.IOException
import java.util.zip.CRC32
import okio.Buffer
import okio.BufferedSink
import okio.BufferedSource
import okio.ByteString
import okio.ByteString.Companion.encodeUtf8
import okio.ByteString.Companion.toByteString
@swankjesse
swankjesse / Main.java
Created February 4, 2025 23:56
ClassLoader close bug
import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.jar.JarOutputStream;
import java.util.zip.ZipEntry;
import static java.nio.charset.StandardCharsets.UTF_8;