#21: introduced UniJException

subprojects/unij-core/src/main/java/pl/tlinkowski/unij/core/UniJ.java

@@ -25,6 +25,7 @@
 
 import pl.tlinkowski.unij.annotation.VisibleForTesting;
 import pl.tlinkowski.unij.core.provider.UnmodifiableListFactory;
+import pl.tlinkowski.unij.exception.UniJException;
 
 /**
  * @author Tomasz Linkowski
@@ -47,8 +48,8 @@ static <T> T load(Class<T> serviceClass) {
 
   private static <T> void validateLoadedServices(Collection<T> services, Class<T> serviceClass) {
     if (services.isEmpty()) {
-      throw new IllegalStateException(String.format(
-              "No %s service found. Ensure proper unij-* module is on the classpath/modulepath", serviceClass
+      throw new UniJException(String.format(
+              "No %s service found. Ensure proper unij-* module is on the classpath/modulepath", serviceClass.getName()
       ));
     }
     log.debug("{} service: found {}", serviceClass.getName(), services);

subprojects/unij-core/src/main/java/pl/tlinkowski/unij/exception/UniJException.java

@@ -0,0 +1,30 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Copyright 2019 Tomasz Linkowski.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package pl.tlinkowski.unij.exception;
+
+/**
+ * Dedicated unchecked exception for UniJ.
+ *
+ * @author Tomasz Linkowski
+ */
+public class UniJException extends RuntimeException {
+
+  public UniJException(String message) {
+    super(message);
+  }
+}

subprojects/unij-core/src/test/groovy/pl/tlinkowski/unij/core/UniJSpec.groovy

@@ -20,6 +20,8 @@ package pl.tlinkowski.unij.core
 
 import spock.lang.Specification
 
+import pl.tlinkowski.unij.exception.UniJException
+
 /**
  * @author Tomasz Linkowski
  */
@@ -29,7 +31,7 @@ class UniJSpec extends Specification {
     when:
       UniJ.load(ServiceWithoutImpl)
     then:
-      thrown(IllegalStateException)
+      thrown(UniJException)
   }
 
   private static interface ServiceWithoutImpl {