Switch from NPE to ISE

When we fail to locate a type it constitutes an IllegalState, not
a plain NPE.

Change-Id: I46eaa470342a5e72ad6a92aefed97e458a2ca398
Signed-off-by: Robert Varga <robert.varga@pantheon.tech>

diff --git a/binding/mdsal-binding-generator-impl/src/main/java/org/opendaylight/mdsal/binding/generator/impl/AbstractTypeGenerator.java b/binding/mdsal-binding-generator-impl/src/main/java/org/opendaylight/mdsal/binding/generator/impl/AbstractTypeGenerator.java
index 7db5d01ff7a789698382c84b37783044e3af61ed..0c80e94b604fc5d7b2b9860995b23e9a17bd1722 100644 (file)
--- a/binding/mdsal-binding-generator-impl/src/main/java/org/opendaylight/mdsal/binding/generator/impl/AbstractTypeGenerator.java
+++ b/binding/mdsal-binding-generator-impl/src/main/java/org/opendaylight/mdsal/binding/generator/impl/AbstractTypeGenerator.java
@@ -839,7 +839,7 @@ abstract class AbstractTypeGenerator {
             targetTypeBuilder = findCaseByPath(targetSchemaNode.getPath());
         }
         if (targetTypeBuilder == null) {
-            throw new NullPointerException("Target type not yet generated: " + targetSchemaNode);
+            throw new IllegalStateException("Target type not yet generated: " + targetSchemaNode);
         }
 
         if (!(targetSchemaNode instanceof ChoiceSchemaNode)) {