Do not decode URL encoding while setting up RequestTemplate (#2228)

* Do not decode URL encoding while setting up RequestTemplate (#2227)

* Add unit test for preserving URL encoding in RequestTemplate (#2227)

Author: Breina

core/src/main/java/feign/RequestTemplate.java

@@ -518,7 +518,7 @@ public RequestTemplate target(String target) {
       }
 
       /* strip the query string */
-      this.target = targetUri.getScheme() + "://" + targetUri.getAuthority() + targetUri.getPath();
+      this.target = targetUri.getScheme() + "://" + targetUri.getRawAuthority() + targetUri.getRawPath();
       if (targetUri.getFragment() != null) {
         this.fragment = "#" + targetUri.getFragment();
       }

core/src/test/java/feign/RequestTemplateTest.java

@@ -514,6 +514,15 @@ public void fragmentShouldNotBeEncodedInTarget() {
     assertThat(template.url()).isEqualTo("https://example.com/path?key1=value1#fragment");
   }
 
+  @Test
+  public void urlEncodingRemainsInPlace() {
+    RequestTemplate template = new RequestTemplate()
+        .method(HttpMethod.GET)
+        .target("https://exa%23mple.com/path%7Cpath");
+
+    assertThat(template.url()).isEqualTo("https://exa%23mple.com/path%7Cpath");
+  }
+
   @Test
   public void slashShouldNotBeAppendedForMatrixParams() {
     RequestTemplate template = new RequestTemplate().method(HttpMethod.GET)