Fix the InvalidStackFrameException when getting variables at the exception breakpoint (#340)

Signed-off-by: Jinbo Wang <[email protected]>

Author: testforstephen

com.microsoft.java.debug.core/src/main/java/com/microsoft/java/debug/core/adapter/handler/ExceptionInfoRequestHandler.java

@@ -80,6 +80,15 @@ public CompletableFuture<Response> handle(Command command, Arguments arguments,
             } catch (InvalidTypeException | ClassNotLoadedException | IncompatibleThreadStateException
                     | InvocationException e) {
                 logger.log(Level.SEVERE, String.format("Failed to get the return value of the method Exception.toString(): %s", e.toString(), e));
+            } finally {
+                try {
+                    // See bug https://github.com/microsoft/vscode-java-debug/issues/767:
+                    // The operation exception.invokeMethod above will resume the thread, that will cause
+                    // the previously cached stack frames for this thread to be invalid.
+                    context.getStackFrameManager().reloadStackFrames(thread);
+                } catch (Exception e) {
+                    // do nothing.
+                }
             }
         }
 

com.microsoft.java.debug.core/src/main/java/com/microsoft/java/debug/core/adapter/variables/VariableUtils.java

@@ -149,8 +149,10 @@ public static List<Variable> listLocalVariables(StackFrame stackFrame) throws Ab
             return res;
         }
         try {
-            for (LocalVariable localVariable : stackFrame.visibleVariables()) {
-                Variable var = new Variable(localVariable.name(), stackFrame.getValue(localVariable));
+            List<LocalVariable> localVariables = stackFrame.visibleVariables();
+            Map<LocalVariable, Value> values = stackFrame.getValues(localVariables);
+            for (LocalVariable localVariable : localVariables) {
+                Variable var = new Variable(localVariable.name(), values.get(localVariable));
                 var.local = localVariable;
                 res.add(var);
             }