From d1e6e9bcce8553e85957987d05d28583fcb55fdf Mon Sep 17 00:00:00 2001

From: Michael Simacek <msimacek@redhat.com>

Date: Tue, 6 Jun 2017 13:47:43 +0200

Subject: [PATCH 2/4] Invoke logback via reflection

​

---

 .../cli/logging/impl/LogbackConfiguration.java | 18 +++++++++++++-----

 1 file changed, 13 insertions(+), 5 deletions(-)

​

diff --git a/maven-embedder/src/main/java/org/apache/maven/cli/logging/impl/LogbackConfiguration.java b/maven-embedder/src/main/java/org/apache/maven/cli/logging/impl/LogbackConfiguration.java

index 4dc5a37b8..a977ba085 100644

--- a/maven-embedder/src/main/java/org/apache/maven/cli/logging/impl/LogbackConfiguration.java

+++ b/maven-embedder/src/main/java/org/apache/maven/cli/logging/impl/LogbackConfiguration.java

@@ -31,21 +31,29 @@

 public class LogbackConfiguration extends BaseSlf4jConfiguration {

     @Override

     public void setRootLoggerLevel(Level level) {

-        ch.qos.logback.classic.Level value;

+        String value;

         switch (level) {

             case DEBUG:

-                value = ch.qos.logback.classic.Level.DEBUG;

+                value = "DEBUG";

                 break;

             case INFO:

-                value = ch.qos.logback.classic.Level.INFO;

+                value = "INFO";

                 break;

             default:

-                value = ch.qos.logback.classic.Level.ERROR;

+                value = "ERROR";

                 break;

         }

-        ((ch.qos.logback.classic.Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME)).setLevel(value);

+        Logger logger = LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);

+        try {

+            Class<?> levelClass = Class.forName("ch.qos.logback.classic.Level");

+            Object logbackLevel = levelClass.getField(value).get(null);

+            Class<?> loggerClass = Class.forName("ch.qos.logback.classic.Logger");

+            loggerClass.getMethod("setLevel", new Class<?>[] {levelClass}).invoke(logger, new Object[] {logbackLevel});

+        } catch (Exception e) {

+            throw new RuntimeException("Failed to initialize logback configuration", e);

+        }

     }

     @Override

-- 

2.40.1

​

​