Client-level exception handler is not triggered

Support
#1

On my own project, the first exception that pops up is com.haulmont.cuba.core.global.DeletePolicyException

so I’ve made my own class out of AbstractUiExceptionHandler but doHandle() is not being triggered at all so I’m not able to handle the exception.

Here’s the class code:

package com.sample.samp.web;

import com.haulmont.cuba.gui.Notifications;
import com.haulmont.cuba.gui.exception.AbstractUiExceptionHandler;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Component;

import javax.annotation.Nullable;

@Component("sample_FKErrorHandler")
public class FKExceptionHandler extends AbstractUiExceptionHandler {

    public FKExceptionHandler(){
        super("com.haulmont.cuba.core.global.DeletePolicyException", "java.sql.SQLIntegrityConstraintViolationException","org.postgresql.util.PSQLException",
                "com.haulmont.cuba.core.global.RemoteException","java.lang.reflect.InvocationTargetException","com.vaadin.server.ServerRpcManager$RpcInvocationException","com.haulmont.cuba.core.global.RemoteException");
    }
    @Override
    protected void doHandle(String className, String message, @Nullable Throwable throwable, UiContext context) {
        if (throwable != null) {
            context.getDialogs().createExceptionDialog()
                    .withThrowable(throwable)
                    .withCaption("error")
                    .withMessage("error")
                    .show();
        } else {
            context.getNotifications().create(Notifications.NotificationType.ERROR)
                    .withCaption("error")
                    .withDescription("error")
                    .show();
        }
    }

    @Override
    public boolean handle(Throwable exception, UiContext context) {
        return super.handle(exception, context);
    }

    @Override
    protected boolean canHandle(String className, String message, @Nullable Throwable throwable) {

        return StringUtils.containsIgnoreCase(message, "some error");
    }
}
#2

Hi,

If you want to give your handler a priority over framework handlers, implement the org.springframework.core.Ordered interface in your handler class and return a value less than HIGHEST_PLATFORM_PRECEDENCE from the getOrder() method, for example

@Component("sample_FKErrorHandler")
public class FKExceptionHandler extends AbstractUiExceptionHandler 
                                implements Ordered {
    // ...

    @Override
    public int getOrder() {
        return HIGHEST_PLATFORM_PRECEDENCE - 10;
    }
}