More or less version 1.0.

Author: Stefan Bethke

README.md

@@ -1,4 +1,46 @@
-javaproxycheck
-==============
+# Java Proxy Check
 
-Simple Java command line client to debug the Java HTTP proxy settings in effect.
+Have you ever had the (mis-)fortune to have to run Java code behind an
+HTTP proxy? Or worse, having to have to go through a proxy for certain
+URLs, but not for others? Have you fought the syntax for defining proxy
+exceptions that differ between OSes and Java?
+
+This tool won't help you fix your config, but it helps you to test things
+out quickly.
+
+
+## Building
+
+The project uses gradle, a simple `gradle build` should create the jar in 
+`build/libs/javaproxycheck.jar`.
+
+
+## Download
+
+A ready-to-run binary compiled with Java 1.7.0_51 is available here:
+http://www.lassitu.de/software/javaproxycheck/javaproxycheck.jar
+
+
+## Usage
+
+proxycheck.jar can be run like this:
+```
+$ java -jar proxycheck.jar http://www.example.com https://secure.example.com
+```
+
+The output will list the URLs and the selection the system ProxySelector.select() method
+returns. You can interactively try out the various system properties like so:
+```
+$ java -Dhttps.proxyHost=proxy.example.com -Dhttps.proxyPort=3128 -jar build/libs/javaproxycheck.jar http://www.example.com https://secure.example.com
+http://www.example.com [DIRECT]
+https://secure.example.com [HTTP @ proxy.example.com:3128]
+```
+
+
+## Java Proxy Settings
+
+Java has built-in support for Windows, Mac OS X, and Gnome system proxy settings; on other
+platforms, you have to run Java programs with appropriate system properties specifying
+which proxies to use when. See the following documentation:
+
+http://download.java.net/jdk7/archive/b123/docs/api/java/net/doc-files/net-properties.html#Proxies

build.gradle

@@ -0,0 +1,11 @@
+
+apply plugin: 'java'
+
+repositories {
+ mavenCentral()
+}
+
+dependencies {
+}
+
+manifest.mainAttributes("Main-Class" : "de.lassitu.JavaProxyCheck")

src/main/java/JavaProxyCheck.java

@@ -0,0 +1,22 @@
+package de.lassitu;
+
+import java.net.ProxySelector;
+import java.net.URI;
+import java.net.URISyntaxException;
+
+class JavaProxyCheck {
+public static void main(String args[]) {
+ProxySelector s = ProxySelector.getDefault();
+
+if (args.length == 0) {
+System.err.println("usage: java -jar JavaProxyCheck.jar http://www.example.com/");
+}
+for (String a : args) {
+try {
+System.out.printf("%-40.40s %s\n", a, s.select(new URI(a)));
+} catch (URISyntaxException | IllegalArgumentException e) {
+System.out.printf("%-40.40s Invalid URI: %s\n", a, e.getMessage());
+}
+}
+}
+}