Java control flow: Detect unreachable code when a break or continue in the try block is overridden in the finally block of the same try statement (IDEA-35597)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting/LocalVariableInitialization.java

@@ -452,4 +452,18 @@ class CompoundAssign {
     <error descr="Variable 'i' might not have been initialized">i</error> += i = 2;
     System.out.println(i);
   }
+}
+
+class BreakAndFinally {
+  void f() {
+    final int i;
+    t:
+    try {
+      break t;
+    }
+    finally {
+      i = 1;
+    }
+    System.out.println(i);
+  }
 }

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting/Unreachable.java

@@ -402,3 +402,69 @@ class Good3 {
     return false;
   }
 }
+
+class ContinueFromFinally {
+  void foo() {
+    while (true) {
+      try {
+        break;
+      } finally {
+        continue;
+      }
+    }
+    <error descr="Unreachable statement">System.out.println();</error>
+  }
+}
+
+class BreakFromNestedTry {
+  void foo() {
+    outer:
+    {
+      inner:
+      try {
+        try {
+          break inner;
+        } finally {
+          System.out.println();
+        }
+      } finally {
+        break outer;
+      }
+      <error descr="Unreachable statement">System.out.println();</error>
+    }
+  }
+}
+
+class BreakFromNestedFinally {
+  void foo() {
+    outer:
+    {
+      inner:
+      try {
+        try {
+        } finally {
+          break inner;
+        }
+      } finally {
+        break outer;
+      }
+      <error descr="Unreachable statement">System.out.println();</error>
+    }
+  }
+}
+
+class ContinueFromTry {
+  void foo() {
+    outer:
+    {
+      do {
+        try {
+          continue;
+        } finally {
+          break outer;
+        }
+      } while (false);
+      <error descr="Unreachable statement">System.out.println();</error>
+    }
+  }
+}