SONARJAVA-4406 also considers throw statements

Author: kaufco

java-checks-test-sources/src/main/java/checks/InterruptedExceptionCheck.java

@@ -363,6 +363,29 @@ void bar() throws InterruptedException {
     }
   }
 
+  public void throwExceptionInTryDirectly() throws InterruptedException {
+    try {
+      throw new RuntimeException();
+    } catch (Exception e) { // Compliant
+    }
+
+    try {
+      throw new InterruptedException();
+    } catch (Exception e) { // Noncompliant
+    }
+
+    try {
+      InterruptedException ie = new InterruptedException();
+      throw ie;
+    } catch (Exception e) { // Noncompliant
+    }
+
+    try {
+      throw getInterruptedException();
+    } catch (Exception e) { // Noncompliant
+    }
+  }
+
   void falsePositivesSonarjava4406() {
     try {
       try {
@@ -381,6 +404,15 @@ void falsePositivesSonarjava4406() {
     } catch (Exception e) { // Compliant, because inner try does not throw an InterruptedException
     }
 
+    try {
+      try {
+        throwsInterruptedException();
+      } catch (InterruptedException ie) { // Compliant
+        throw new InterruptedException();
+      }
+    } catch (Exception e) { // Noncompliant, because inner try throws an InterruptedException
+    }
+
     try {
       try {
         throwsInterruptedException();

java-checks/src/main/java/org/sonar/java/checks/InterruptedExceptionCheck.java

@@ -179,6 +179,15 @@ public void visitTryStatement(TryStatementTree tryStatementTree) {
       scan(tryStatementTree.catches());
       scan(tryStatementTree.finallyBlock());
     }
+
+    @Override
+    public void visitThrowStatement(ThrowStatementTree tree) {
+      // besides to method invocation, we also need to collect throw statements
+      if (isInterruptingExceptionExpression(tree.expression())) {
+        invocationTree.add(tree);
+      }
+      super.visitThrowStatement(tree);
+    }
   }
 
   private static class BlockVisitor extends BaseTreeVisitor {