#194745: preventing NPE in MakeStatic.
authorJan Lahoda <jlahoda@netbeans.org>
Mon, 31 Jan 2011 15:42:25 +0100
changeset 172966727e9ed040c
parent 17295 3c793a3084b3
child 17297 43d670d11986
#194745: preventing NPE in MakeStatic.
javahints/nbproject/project.properties
javahints/src/org/netbeans/modules/javahints/MakeStatic.java
javahints/test/unit/src/org/netbeans/modules/javahints/MakeStaticTest.java
     1.1 --- a/javahints/nbproject/project.properties	Tue Jan 25 09:50:02 2011 +0100
     1.2 +++ b/javahints/nbproject/project.properties	Mon Jan 31 15:42:25 2011 +0100
     1.3 @@ -50,7 +50,7 @@
     1.4  auxiliary.org-netbeans-modules-editor-indent.text.x-java.CodeStyle.project.text-limit-width=80
     1.5  javac.compilerargs=-Xlint:unchecked
     1.6  javac.source=1.5
     1.7 -spec.version.base=2.40.0
     1.8 +spec.version.base=2.41.0
     1.9  
    1.10  nbm.needs.restart=true
    1.11  requires.nb.javac=true
     2.1 --- a/javahints/src/org/netbeans/modules/javahints/MakeStatic.java	Tue Jan 25 09:50:02 2011 +0100
     2.2 +++ b/javahints/src/org/netbeans/modules/javahints/MakeStatic.java	Mon Jan 31 15:42:25 2011 +0100
     2.3 @@ -88,6 +88,11 @@
     2.4              //strange, but:
     2.5              return null;
     2.6          }
     2.7 +        
     2.8 +        if (el.getModifiers().contains(Modifier.ABSTRACT)) {
     2.9 +            //strange, but:
    2.10 +            return null;
    2.11 +        }
    2.12  
    2.13          TreePath source = info.getTrees().getPath(el);
    2.14  
    2.15 @@ -121,9 +126,15 @@
    2.16          boolean safe;
    2.17  
    2.18          try {
    2.19 +            safe = true;
    2.20              switch (source.getLeaf().getKind()) {
    2.21                  case METHOD:
    2.22 -                    s.scan(new TreePath(treePath, ((MethodTree) source.getLeaf()).getBody()), null);
    2.23 +                    MethodTree method = (MethodTree) source.getLeaf();
    2.24 +                    
    2.25 +                    if (method.getBody() != null) {
    2.26 +                        s.scan(new TreePath(treePath, method.getBody()), null);
    2.27 +                    }
    2.28 +                    
    2.29                      break;
    2.30                  case VARIABLE:
    2.31                      ExpressionTree initializer = ((VariableTree) source.getLeaf()).getInitializer();
    2.32 @@ -132,7 +143,6 @@
    2.33                          s.scan(new TreePath(treePath,initializer), null);
    2.34                      break;
    2.35              }
    2.36 -            safe = true;
    2.37          } catch (FoundInstanceReference e) {
    2.38              safe = false;
    2.39          }
     3.1 --- a/javahints/test/unit/src/org/netbeans/modules/javahints/MakeStaticTest.java	Tue Jan 25 09:50:02 2011 +0100
     3.2 +++ b/javahints/test/unit/src/org/netbeans/modules/javahints/MakeStaticTest.java	Mon Jan 31 15:42:25 2011 +0100
     3.3 @@ -162,6 +162,36 @@
     3.4                         "}").replaceAll("[ \t\n]+", " "));
     3.5      }
     3.6  
     3.7 +    public void testNoNPE194745a() throws Exception {
     3.8 +        performAnalysisTest("test/Test.java",
     3.9 +                            "package test;" +
    3.10 +                            "public class Test {" +
    3.11 +                            "     abstract void test();" +
    3.12 +                            "     private static void testStatic() {" +
    3.13 +                            "         te|st();" +
    3.14 +                            "     }" +
    3.15 +                            "}");
    3.16 +    }
    3.17 +    
    3.18 +    public void testNoNPE194745b() throws Exception {
    3.19 +        performFixTest("test/Test.java",
    3.20 +                       "package test;" +
    3.21 +                       "public class Test {" +
    3.22 +                       "     void test();" +
    3.23 +                       "     private static void testStatic() {" +
    3.24 +                       "         te|st();" +
    3.25 +                       "     }" +
    3.26 +                       "}",
    3.27 +                       "FixImpl:test:true",
    3.28 +                       ("package test;" +
    3.29 +                       "public class Test {" +
    3.30 +                       "     static void test();" +
    3.31 +                       "     private static void testStatic() {" +
    3.32 +                       "         test();" +
    3.33 +                       "     }" +
    3.34 +                       "}").replaceAll("[ \t\n]+", " "));
    3.35 +    }
    3.36 +    
    3.37      @Override
    3.38      protected List<Fix> computeFixes(CompilationInfo info, int pos, TreePath path) throws Exception {
    3.39          return new MakeStatic().run(info, null, pos, path, null);