Fix for https://github.com/siddhi-io/siddhi-io-http/issues/81

component/src/main/java/io/siddhi/extension/io/http/source/exception/HttpSourceAdaptorException.java

@@ -0,0 +1,29 @@
+/*
+ *  Copyright (c) 2019 WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *
+ *  WSO2 Inc. licenses this file to you 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 io.siddhi.extension.io.http.source.exception;
+
+/**
+ * HTTP source specific exception.
+ */
+public class HttpSourceAdaptorException extends RuntimeException {
+
+    public HttpSourceAdaptorException(String message, Throwable e) {
+        super(message, e);
+    }
+}

component/src/main/java/io/siddhi/extension/io/http/source/internal/ServiceComponent.java

@@ -18,6 +18,7 @@
  */
 package io.siddhi.extension.io.http.source.internal;
 
+import io.siddhi.extension.io.http.source.exception.HttpSourceAdaptorException;
 import org.apache.log4j.Logger;
 import org.osgi.framework.BundleContext;
 import org.osgi.service.component.annotations.Activate;
@@ -48,7 +49,13 @@ public class ServiceComponent {
      */
     @Activate
     protected void start(BundleContext bundleContext) throws Exception {
-        HttpIODataHolder.getInstance().setBundleContext(bundleContext);
+        try {
+            HttpIODataHolder.getInstance().setBundleContext(bundleContext);
+        } catch (Throwable throwable) {
+            log.error("Error occurred when initializing HTTP IO service component.", throwable);
+            throw new HttpSourceAdaptorException("Error occurred when initializing HTTP IO service component.",
+                    throwable);
+        }
     }
 
     /**