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weixin4j-base/src/main/java/com/foxinmy/weixin4j/http/factory/HttpComponent3.java

@@ -81,7 +81,7 @@ public class HttpComponent3 extends AbstractHttpClient {
 				return new TraceMethod(uri.getEscapedURI());
 			} else {
 				throw new HttpClientException("unknown request method "
-						+ method + "for" + uri);
+						+ method + " for " + uri);
 			}
 			httpMethod.setURI(uri);
 		} catch (IOException e) {

weixin4j-base/src/main/java/com/foxinmy/weixin4j/http/factory/HttpComponent4.java

@@ -62,7 +62,7 @@ public abstract class HttpComponent4 extends AbstractHttpClient {
 			return new HttpTrace(uri);
 		} else {
 			throw new HttpClientException("unknown request method " + method
-					+ "for" + uri);
+					+ " for " + uri);
 		}
 	}