CAMEL-12606: Fixed regression in camel test blueprint behaviour.
diff --git a/camel-core/src/main/java/org/apache/camel/impl/osgi/Activator.java b/camel-core/src/main/java/org/apache/camel/impl/osgi/Activator.java
index 40b5b52..0b1f915 100644
--- a/camel-core/src/main/java/org/apache/camel/impl/osgi/Activator.java
+++ b/camel-core/src/main/java/org/apache/camel/impl/osgi/Activator.java
@@ -254,7 +254,7 @@
 
         // it may be running outside real OSGi container such as when unit testing with camel-test-blueprint
         // then we need to use a different canSee algorithm that works outside real OSGi
-        if (bundle.getBundleId() > 0) {
+        if (bundle.getBundleId() >= 0) {
             Bundle root = bundle.getBundleContext().getBundle(0);
             if (root != null && "org.apache.felix.connect".equals(root.getSymbolicName())) {
                 return checkCompat(bundle, clazz);
diff --git a/components/camel-test-blueprint/src/test/java/org/apache/camel/test/blueprint/converter/CustomConverterRegressionTest.java b/components/camel-test-blueprint/src/test/java/org/apache/camel/test/blueprint/converter/CustomConverterRegressionTest.java
new file mode 100644
index 0000000..369cc60
--- /dev/null
+++ b/components/camel-test-blueprint/src/test/java/org/apache/camel/test/blueprint/converter/CustomConverterRegressionTest.java
@@ -0,0 +1,44 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF 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 org.apache.camel.test.blueprint.converter;
+
+import org.apache.camel.test.blueprint.CamelBlueprintTestSupport;
+import org.apache.camel.test.blueprint.Foo;
+import org.junit.Test;
+
+public class CustomConverterRegressionTest extends CamelBlueprintTestSupport {
+    
+    @Override
+    protected String getBlueprintDescriptor() {
+        return "org/apache/camel/test/blueprint/converter/CustomConverterRegressionTest.xml";
+    }
+
+    @Test
+    public void testCustomConverter() throws Exception {
+        getMockEndpoint("mock:result").expectedMessageCount(1);
+        getMockEndpoint("mock:result").message(0).body().isInstanceOf(Foo.class);
+
+        template.sendBody("direct:start", "John,Doe");
+
+        assertMockEndpointsSatisfied();
+
+        Foo foo = getMockEndpoint("mock:result").getReceivedExchanges().get(0).getIn().getBody(Foo.class);
+        assertEquals("John", foo.getFirst());
+        assertEquals("Doe", foo.getLast());
+    }
+
+}
diff --git a/components/camel-test-blueprint/src/test/java/org/apache/camel/test/blueprint/converter/FooConverterRegression.java b/components/camel-test-blueprint/src/test/java/org/apache/camel/test/blueprint/converter/FooConverterRegression.java
new file mode 100644
index 0000000..26c2ba3
--- /dev/null
+++ b/components/camel-test-blueprint/src/test/java/org/apache/camel/test/blueprint/converter/FooConverterRegression.java
@@ -0,0 +1,37 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF 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 org.apache.camel.test.blueprint.converter;
+
+import org.apache.camel.Converter;
+import org.apache.camel.TypeConverters;
+import org.apache.camel.test.blueprint.Foo;
+
+public class FooConverterRegression {
+
+    public FooConverterRegression() {
+    }
+    
+    @Converter
+    public Foo convertToFoo(String data) {
+        String[] s = data.split(",");
+        Foo foo = new Foo();
+        foo.setFirst(s[0]);
+        foo.setLast(s[1]);
+        return foo;
+    }
+
+}
diff --git a/components/camel-test-blueprint/src/test/resources/META-INF/services/org/apache/camel/TypeConverter b/components/camel-test-blueprint/src/test/resources/META-INF/services/org/apache/camel/TypeConverter
index 2b0f5e5..ae8dad1 100644
--- a/components/camel-test-blueprint/src/test/resources/META-INF/services/org/apache/camel/TypeConverter
+++ b/components/camel-test-blueprint/src/test/resources/META-INF/services/org/apache/camel/TypeConverter
@@ -15,4 +15,4 @@
 # limitations under the License.
 #
 
-org.apache.camel.test.blueprint.converter.MyConverter
\ No newline at end of file
+org.apache.camel.test.blueprint.converter.FooConverterRegression
\ No newline at end of file
diff --git a/components/camel-test-blueprint/src/test/resources/org/apache/camel/test/blueprint/converter/CustomConverterRegressionTest.xml b/components/camel-test-blueprint/src/test/resources/org/apache/camel/test/blueprint/converter/CustomConverterRegressionTest.xml
new file mode 100644
index 0000000..8548e3e
--- /dev/null
+++ b/components/camel-test-blueprint/src/test/resources/org/apache/camel/test/blueprint/converter/CustomConverterRegressionTest.xml
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF 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.
+
+-->
+<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
+           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+           xsi:schemaLocation="
+             http://www.osgi.org/xmlns/blueprint/v1.0.0 https://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd">
+
+  <camelContext xmlns="http://camel.apache.org/schema/blueprint">
+
+    <route>
+      <from uri="direct:start"/>
+      <convertBodyTo type="org.apache.camel.test.blueprint.Foo"/>
+      <to uri="mock:result"/>
+    </route>
+
+  </camelContext>
+
+</blueprint>
+