Fix nullpointer in ast finder

src/be/jeffcheasey88/peeratcode/parser/java/Class.java

@@ -55,12 +55,16 @@ public class Class extends JavaElement implements AnnotableBuffer, ClassContaine
 
 	@Override
 	public <E extends JavaElement> E find(java.util.function.Function<JavaElement, Boolean> finder){
+		if(annotations != null){
 			for(Annotation annotation : this.annotations){
 				if(finder.apply(annotation)) return (E) annotation;
 			}
+		}
+		if(elements != null){
 			for(JavaElement element : this.elements){
 				if(finder.apply(element)) return (E) element;
 			}
+		}
 		return null;
 	}
 

src/be/jeffcheasey88/peeratcode/parser/java/Function.java

@@ -61,15 +61,21 @@ public class Function extends JavaElement implements VariableContainer, Operatio
 
 	@Override
 	public <E extends JavaElement> E find(java.util.function.Function<JavaElement, Boolean> finder){
+		if(annotations != null){
 			for(Annotation annotation : this.annotations){
 				if(finder.apply(annotation)) return (E) annotation;
 			}
+		}
+		if(parameters != null){
 			for(Variable param : this.parameters){
 				if(finder.apply(param)) return (E) param;
 			}
+		}
+		if(elements != null){
 			for(JavaElement content : this.elements){
 				if(finder.apply(content)) return (E) content;
 			}
+		}
 		return null;
 	}
 

src/be/jeffcheasey88/peeratcode/parser/java/JavaParser.java

@@ -733,7 +733,9 @@ public class JavaParser extends Parser<JavaElement> {
 		BiFunction<JavaElement, Bag, JavaElement> function_builder = (parent, bag) -> {
 			buildVariable(bag);
 			Integer mod = bag.get("mod");
-			Function function = new Function((((AnnotableBuffer)parent).getAnnotationBuffer()), mod == null ? 0 : mod, bag.get("generic"), bag.get("type"), bag.get("name"), bag.get("param"), bag.get("throws"));
+			List<Annotation> annotations = null;
+			if(parent instanceof AnnotableBuffer) annotations = (((AnnotableBuffer)parent).getAnnotationBuffer());
+			Function function = new Function(annotations, mod == null ? 0 : mod, bag.get("generic"), bag.get("type"), bag.get("name"), bag.get("param"), bag.get("throws"));
 			if(parent instanceof FunctionContainer) ((FunctionContainer)parent).addFunction(function);
 			return function;
 		};
@@ -1039,7 +1041,7 @@ public class JavaParser extends Parser<JavaElement> {
 	}
 	
 	public static void main(String[] args) throws Exception{
-		File file = new File("C:\\Users\\jeffc\\eclipse-workspace\\peer-at-code-backend\\src\\dev\\peerat\\backend\\bonus\\extract\\RouteExtracter.java");
+		File file = new File("C:\\Users\\jeffc\\eclipse-workspace\\peer-at-code-backend\\test\\dev\\peerat\\backend\\routes\\PlayerDetailsTests.java");
 		
 		BufferedReader reader = new BufferedReader(new FileReader(file));
 		

src/be/jeffcheasey88/peeratcode/parser/java/Variable.java

@@ -46,9 +46,11 @@ public class Variable extends JavaElement{
 
 	@Override
 	public <E extends JavaElement> E find(Function<JavaElement, Boolean> finder){
+		if(annotations != null){
 			for(Annotation annotation : this.annotations){
 				if(finder.apply(annotation)) return (E) annotation;
 			}
+		}
 		return value != null ? finder.apply(value) ? (E)value : null : null;
 	}
 }

src/be/jeffcheasey88/peeratcode/parser/java/operation/ForOperation.java

@@ -44,12 +44,16 @@ public class ForOperation extends OperationBag{
 
 	@Override
 	public <E extends JavaElement> E find(Function<JavaElement, Boolean> finder){
+		if(init_vars != null){
 			for(Variable variable : this.init_vars){
 				if(finder.apply(variable)) return (E)variable;
 			}
+		}
+		if(init_values != null){
 			for(Value value : this.init_values){
 				if(finder.apply(value)) return (E)value;
 			}
+		}
 		if(finder.apply(condition)) return (E)condition;
 		for(Value value : this.updates){
 			if(finder.apply(value)) return (E)value;

src/be/jeffcheasey88/peeratcode/parser/java/operation/OperationBag.java

@@ -30,9 +30,11 @@ public class OperationBag extends Operation implements VariableContainer, Operat
 
 	@Override
 	public <E extends JavaElement> E find(Function<JavaElement, Boolean> finder){
+		if(elements != null){
 			for(JavaElement element : this.elements){
 				if(finder.apply(element)) return (E)element;
 			}
+		}
 		return null;
 	}
 

src/be/jeffcheasey88/peeratcode/parser/java/operation/ReturnOperation.java

@@ -20,7 +20,7 @@ public class ReturnOperation extends Operation{
 
 	@Override
 	public <E extends JavaElement> E find(Function<JavaElement, Boolean> finder) {
-		return finder.apply(value) ? (E)value : null;
+		return value != null ? finder.apply(value) ? (E)value : null : null;
 	}
 
 }

src/be/jeffcheasey88/peeratcode/parser/java/operation/TryOperation.java

@@ -24,7 +24,6 @@ public class TryOperation extends OperationBag{
 
 	@Override
 	public <E extends JavaElement> E find(Function<JavaElement, Boolean> finder){
-		if(finder.apply(resource)) return (E)resource;
+		return resource != null ? finder.apply(resource) ? (E)resource : super.find(finder) : super.find(finder);
-		return super.find(finder);
 	}
 }