From 294ac16e81cb4969beaf6fe07ec06c0ed6f8939c Mon Sep 17 00:00:00 2001
From: Marcel Steinbeck <marcel@informatik.uni-bremen.de>
Date: Fri, 7 Oct 2016 16:56:59 +0200
Subject: [PATCH] Fixes potential NullPointerException in JDTTreeBuilderQuery.

`currentPackage` of CompilationUnitDeclaration may be null if the
corresponding source file does not define a package. Thus,
`currentPackage.tokens` may throw a NullPointerException.
---
 .../java/spoon/support/compiler/jdt/JDTTreeBuilderQuery.java   | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/main/java/spoon/support/compiler/jdt/JDTTreeBuilderQuery.java b/src/main/java/spoon/support/compiler/jdt/JDTTreeBuilderQuery.java
index 24d1ccde79d..24d6b83a56c 100644
--- a/src/main/java/spoon/support/compiler/jdt/JDTTreeBuilderQuery.java
+++ b/src/main/java/spoon/support/compiler/jdt/JDTTreeBuilderQuery.java
@@ -131,6 +131,9 @@ static String searchType(String typeName, ImportReference[] imports) {
 	static ImportReference searchPackage(char[][] packageName, CompilationUnitDeclaration[] unitsToProcess) {
 		for (CompilationUnitDeclaration unit : unitsToProcess) {
 			final ImportReference currentPackage = unit.currentPackage;
+			if (currentPackage == null) {
+				continue;
+			}
 			final char[][] tokens = currentPackage.tokens;
 			if (packageName.length > tokens.length) {
 				continue;