1 files changed, 39 insertions, 0 deletions
diff --git a/javaparser-core/src/main/java/com/github/javaparser/ast/validator/Java7Validator.java b/javaparser-core/src/main/java/com/github/javaparser/ast/validator/Java7Validator.java
new file mode 100644
index 000000000..995e83620
--- /dev/null
+++ b/javaparser-core/src/main/java/com/github/javaparser/ast/validator/Java7Validator.java
@@ -0,0 +1,39 @@
+package com.github.javaparser.ast.validator;
+
+import com.github.javaparser.ast.expr.Expression;
+import com.github.javaparser.ast.stmt.TryStmt;
+import com.github.javaparser.ast.type.UnionType;
+
+/**
+ * This validator validates according to Java 7 syntax rules.
+ */
+public class Java7Validator extends Java6Validator {
+    protected final SingleNodeTypeValidator<TryStmt> tryWithLimitedResources = new SingleNodeTypeValidator<>(TryStmt.class, (n, reporter) -> {
+        if (n.getCatchClauses().isEmpty()
+                && n.getResources().isEmpty()
+                && !n.getFinallyBlock().isPresent()) {
+            reporter.report(n, "Try has no finally, no catch, and no resources.");
+        }
+        for (Expression resource : n.getResources()) {
+            if (!resource.isVariableDeclarationExpr()) {
+                reporter.report(n, "Try with resources only supports variable declarations.");
+            }
+        }
+    });
+    protected final SingleNodeTypeValidator<UnionType> multiCatch = new SingleNodeTypeValidator<>(UnionType.class, (n, reporter) -> {
+        // Case "0 elements" is caught elsewhere.
+        if (n.getElements().size() == 1) {
+            reporter.report(n, "Union type (multi catch) must have at least two elements.");
+        }
+    });
+
+    public Java7Validator() {
+        super();
+        remove(genericsWithoutDiamondOperator);
+        replace(tryWithoutResources, tryWithLimitedResources);
+        remove(noStringsInSwitch);
+        remove(noBinaryIntegerLiterals);
+        remove(noUnderscoresInIntegerLiterals);
+        replace(noMultiCatch, multiCatch);
+    }
+}