Index: trunk/test/unit/org/openstreetmap/josm/data/cache/JCSCacheManagerTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/data/cache/JCSCacheManagerTest.java	(revision 8991)
+++ trunk/test/unit/org/openstreetmap/josm/data/cache/JCSCacheManagerTest.java	(revision 8991)
@@ -0,0 +1,25 @@
+// License: GPL. For details, see LICENSE file.
+package org.openstreetmap.josm.data.cache;
+
+import java.util.logging.Logger;
+
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.openstreetmap.josm.JOSMFixture;
+
+public class JCSCacheManagerTest {
+
+    /**
+     * Setup test.
+     */
+    @BeforeClass
+    public static void setUp() {
+        JOSMFixture.createUnitTestFixture().init();
+    }
+
+    @Test
+    public void testLoggingAdaptor12054() throws Exception {
+        JCSCacheManager.getCache("foobar", 1, 0, "foobar"); // cause logging adaptor to be initialized
+        Logger.getLogger("org.apache.commons.jcs").warning("{switch:0}");
+    }
+}