new #ref() without arguments
diff --git a/plugins/InspectionGadgets/src/com/siyeh/ig/errorhandling/NewExceptionWithoutArgumentsInspection.java b/plugins/InspectionGadgets/src/com/siyeh/ig/errorhandling/NewExceptionWithoutArgumentsInspection.java
new file mode 100644
index 000000000000..b6453a340e03
--- /dev/null
+++ b/plugins/InspectionGadgets/src/com/siyeh/ig/errorhandling/NewExceptionWithoutArgumentsInspection.java
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2011 Bas Leijdekkers
+ *
+ * Licensed 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 com.siyeh.ig.errorhandling;
+
+import com.intellij.psi.*;
+import com.intellij.psi.search.GlobalSearchScope;
+import com.siyeh.InspectionGadgetsBundle;import com.siyeh.ig.BaseInspection;
+import com.siyeh.ig.BaseInspectionVisitor;
+import org.jetbrains.annotations.Nls;
+import org.jetbrains.annotations.NotNull;
+
+public class NewExceptionWithoutArgumentsInspection extends BaseInspection {
+ @Nls
+ @NotNull
+ @Override
+ public String getDisplayName() {
+ return InspectionGadgetsBundle.message("new.exception.without.arguments.display.name");
+ }
+
+ @NotNull
+ @Override
+ protected String buildErrorString(Object... infos) {
+ return InspectionGadgetsBundle.message("new.exception.without.arguments.problem.descriptor");
+ }
+
+ @Override
+ public BaseInspectionVisitor buildVisitor() {
+ return new NewExceptionWithoutArgumentsVisitor();
+ }
+
+ private static class NewExceptionWithoutArgumentsVisitor extends BaseInspectionVisitor {
+
+ @Override
+ public void visitNewExpression(PsiNewExpression expression) {
+ super.visitNewExpression(expression);
+ final PsiExpressionList argumentList = expression.getArgumentList();
+ if (argumentList == null) {
+ return;
+ }
+ final PsiExpression[] expressions = argumentList.getExpressions();
+ if (expressions.length != 0) {
+ return;
+ }
+ final PsiJavaCodeReferenceElement classReference = expression.getClassReference();
+ if (classReference == null) {
+ return;
+ }
+ final PsiElement target = classReference.resolve();
+ if (!(target instanceof PsiClass)) {
+ return;
+ }
+ final PsiClass aClass = (PsiClass)target;
+ final GlobalSearchScope resolveScope = expression.getResolveScope();
+ final JavaPsiFacade psiFacade = JavaPsiFacade.getInstance(expression.getProject());
+ final PsiClass exceptionClass = psiFacade.findClass(CommonClassNames.JAVA_LANG_EXCEPTION, resolveScope);
+ if (exceptionClass == null) {
+ return;
+ }
+ if (!aClass.isInheritor(exceptionClass, true)) {
+ return;
+ }
+ registerNewExpressionError(expression);
+ }
+ }
+}
diff --git a/plugins/InspectionGadgets/src/inspectionDescriptions/NewExceptionWithoutArguments.html b/plugins/InspectionGadgets/src/inspectionDescriptions/NewExceptionWithoutArguments.html
new file mode 100644
index 000000000000..dd38673c63b7
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+++ b/plugins/InspectionGadgets/src/inspectionDescriptions/NewExceptionWithoutArguments.html
@@ -0,0 +1,8 @@
+
+
+This inspection reports construction of exceptions without arguments. When an exception is constructed without arguments it contains no
+information about the fault that happened, which makes debugging needlessly hard.
+
+New in 11, Powered by InspectionGadgets
+
+
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