标签: illegalstateexception

我从我的应用程序中获取用户报告,提供以下异常:

java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState
at android.app.FragmentManagerImpl.checkStateLoss(FragmentManager.java:1109)
at android.app.FragmentManagerImpl.popBackStackImmediate(FragmentManager.java:399)
at android.app.Activity.onBackPressed(Activity.java:2066)
at android.app.Activity.onKeyUp(Activity.java:2044)
at android.view.KeyEvent.dispatch(KeyEvent.java:2529)
at android.app.Activity.dispatchKeyEvent(Activity.java:2274)
at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:1803)
at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1112)
at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1112)
at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1112)
at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchKeyEvent(PhoneWindow.java:1855)
at com.android.internal.policy.impl.PhoneWindow.superDispatchKeyEvent(PhoneWindow.java:1277)
at android.app.Activity.dispatchKeyEvent(Activity.java:2269)
at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:1803)
at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1112)
at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1112)
at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1112)
at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1112)
at android.widget.TabHost.dispatchKeyEvent(TabHost.java:297)
at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1112)
at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1112)
at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1112)
at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchKeyEvent(PhoneWindow.java:1855)
at com.android.internal.policy.impl.PhoneWindow.superDispatchKeyEvent(PhoneWindow.java:1277)
at android.app.Activity.dispatchKeyEvent(Activity.java:2269)
at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:1803)
at android.view.ViewRoot.deliverKeyEventPostIme(ViewRoot.java:2880)
at android.view.ViewRoot.handleFinishedEvent(ViewRoot.java:2853)
at android.view.ViewRoot.handleMessage(ViewRoot.java:2028)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:132)
at android.app.ActivityThread.main(ActivityThread.java:4028)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:491)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:844) …

我有一个Live Android应用程序,从市场我收到了以下堆栈跟踪,我不知道为什么它发生在应用程序代码中没有发生,但它是由应用程序中的一些或其他事件引起的(假设)

我没有使用Fragments,仍然有FragmentManager的引用.如果任何机构可以对某些隐藏的事实进行一些说明以避免此类问题:

java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState
at android.app.FragmentManagerImpl.checkStateLoss(FragmentManager.java:1109)
at android.app.FragmentManagerImpl.popBackStackImmediate(FragmentManager.java:399)
at android.app.Activity.onBackPressed(Activity.java:2066)
at android.app.Activity.onKeyDown(Activity.java:1962)
at android.view.KeyEvent.dispatch(KeyEvent.java:2482)
at android.app.Activity.dispatchKeyEvent(Activity.java:2274)
at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:1668)
at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1112)
at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1112)
at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1112)
at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1112)
at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1112)
at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1112)
at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchKeyEvent(PhoneWindow.java:1720)
at com.android.internal.policy.impl.PhoneWindow.superDispatchKeyEvent(PhoneWindow.java:1258)
at android.app.Activity.dispatchKeyEvent(Activity.java:2269)
at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:1668)
at android.view.ViewRoot.deliverKeyEventPostIme(ViewRoot.java:2851)
at android.view.ViewRoot.handleFinishedEvent(ViewRoot.java:2824)
at android.view.ViewRoot.handleMessage(ViewRoot.java:2011)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:132)
at android.app.ActivityThread.main(ActivityThread.java:4025)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:491)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599)
at dalvik.system.NativeStart.main(Native Method)  

在进行API调用时,我很少收到此错误.

java.lang.IllegalStateException: Fragment  not attached to Activity

我尝试将代码放在isAdded()方法中以检查片段当前是否已添加到其活动中但仍然很少出现此错误.我不明白为什么我仍然会收到此错误.我怎么能阻止它？

它在线上显示错误 -

cameraInfo.setId(getResources().getString(R.string.camera_id));

下面是我正在制作的示例api调用.

SAPI.getInfo(getActivity(),
                new APIResponseListener() {
                    @Override
                    public void onResponse(Object response) {


                        cameraInfo = new SInfo();
                        if(isAdded()) {
                            cameraInfo.setId(getResources().getString(R.string.camera_id));
                            cameraInfo.setName(getResources().getString(R.string.camera_name));
                            cameraInfo.setColor(getResources().getString(R.string.camera_color));
                            cameraInfo.setEnabled(true);
                        }


                    }

                    @Override
                    public void onError(VolleyError error) {
                        mProgressDialog.setVisibility(View.GONE);
                        if (error instanceof NoConnectionError) {
                            String errormsg = getResources().getString(R.string.no_internet_error_msg);
                            Toast.makeText(getActivity(), errormsg, Toast.LENGTH_LONG).show();
                        }
                    }
                });

我正在为我的应用程序使用支持库.在我的FragmentActivity中,我使用AsyncTask从Internet下载数据.在onPreExecute()方法中我添加了一个Fragment,在onPostExecute()方法中我再次删除它.当两者之间的方向发生变化时,我得到了上述异常.请看一下细节:

private class onFriendAddedAsyncTask extends AsyncTask<String, Void, String> {
    DummyFragment dummyFragment; 
    FragmentManager fm;
    FragmentTransaction ft;

@Override
protected void onPreExecute() {
    Log.v("MyFragmentActivity", "onFriendAddedAsyncTask/onPreExecute");
    dummyFragment = DummyFragment.newInstance();
    fm = getSupportFragmentManager();
    ft = fm.beginTransaction();
    ft.add(dummyFragment, "dummy_fragment");
    ft.commit();
}

@Override
protected void onPostExecute(String result) {
    Log.v("MyFragmentActivity", "onFriendAddedAsyncTask/onPostExecute");
    ft = fm.beginTransaction();
    ft.remove(dummyFragment);
    ft.commit();
}

@Override
protected String doInBackground(String... name) {
    Log.v("MyFragmentActivity", "onFriendAddedAsyncTask/doInBackground");
    ...
}

我得到了以下LogCut:

01-05 23:54:19.958: V/MyFragmentActivity(12783): onFriendAddedAsyncTask/onPreExecute
01-05 23:54:19.968: V/DummyFragment(12783): onAttach
01-05 23:54:19.968: V/DummyFragment(12783): onCreate
01-05 23:54:19.968: V/MyFragmentActivity(12783): onFriendAddedAsyncTask/doInBackground
01-05 23:54:19.973: V/DummyFragment(12783): onCreateView …

抛出此方法

java.lang.IllegalStateException:在提交响应后无法转发

我无法发现问题.有帮助吗？

    int noOfRows = Integer.parseInt(request.getParameter("noOfRows"));
    String chkboxVal = "";
    // String FormatId=null;
    Vector vRow = new Vector();
    Vector vRow1 = new Vector();
    String GroupId = "";
    String GroupDesc = "";
    for (int i = 0; i < noOfRows; i++) {
        if ((request.getParameter("chk_select" + i)) == null) {
            chkboxVal = "notticked";
        } else {
            chkboxVal = request.getParameter("chk_select" + i);
            if (chkboxVal.equals("ticked")) {
                fwdurl = "true";
                Statement st1 = con.createStatement();
                GroupId = request.getParameter("GroupId" + i);
                GroupDesc = request.getParameter("GroupDesc" + i); …

今天与同事讨论了这个问题.

爪哇的Javadocs IllegalStateException说它:

表示在非法或不适当的时间调用了方法.换句话说,Java环境或Java应用程序未处于所请求操作的适当状态.

而Effective Java则说(项目60,第248页):

另一个常用的异常是IllegalStateException.如果由于接收对象的状态而调用是非法的,则通常会抛出异常.例如,如果调用者在正确初始化之前尝试使用某个对象,则抛出此异常.

看来这里有一点差异.javadocs的第二句使得听起来像异常可以描述关于Java执行状态的非常宽泛的条件,但是Effective Java中的描述使得它听起来像是用于特定于与对象的状态状态相关的条件.方法已被调用.

我在JDK(例如集合Matcher)和Guava中看到的用法肯定似乎属于Effective Java谈论的类别("此对象处于无法调用此方法的状态").这也似乎与IllegalStateException兄弟姐妹一致IllegalArgumentException.

IllegalStateExceptionJDK中是否存在与"Java环境"或"Java应用程序"相关的合法用法？或者是否有任何最佳实践指南主张将其用于更广泛的执行状态？如果没有,为什么这样的javadocs就像那样？;)

我有使用编译器合规级别1.5编译的Spring/Java App .

我有一个新的Linux设置,我下载了Apache Tomcat 8.0.8.

我下载了JDK 8u5.

我在bash中设置路径如下:

PATH=$PATH:$HOME/jdk1.8.0_05/bin
export PATH

Java -version报告:

java version "1.8.0_05"
Java(TM) SE Runtime Environment (build 1.8.0_05-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.5-b02, mixed mode)

并在setnenv.sh中设置(对于Tomcat):

JDK_HOME=/home/userid/jdk1.8.0_05

当我部署我的WAR文件时,我得到以下错误.我认为Tomcat似乎没有使用我安装的Java.我按照设置说明进行操作.PS:我也试过JRE而不是JDK和同样的问题.

22-May-2014 11:34:54.070 INFO [http-nio-8080-exec-4] org.apache.catalina.core.ApplicationContext.log Initializing Spring root WebApplicationContext
22-May-2014 11:34:54.512 SEVERE [http-nio-8080-exec-4] org.apache.catalina.core.StandardContext.listenerStart Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
 org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from file [/home/userid/apache-tomcat-8.0.8/webapps/myApplication-QA/WEB-INF/classes/config/spring/securityContext.xml]; nested exception is **java.lang.IllegalStateException: Context …

我在容器Activity上使用此方法来显示BFrag

public void showBFrag()
{
    // Start a new FragmentTransaction
    FragmentTransaction fragmentTransaction = mFragmentMgr.beginTransaction();

    if(mBFrag.isAdded())
    {
        Log.d(LOG_TAG, "Show() BFrag");
        fragmentTransaction.show(mBFrag);   
    }
    else
    {
        Log.d(LOG_TAG, "Replacing AFrag -> BFrag");
        fragmentTransaction.replace(R.id.operation_fragments_frame, mBFrag);
    }

    // Keep the transaction in the back stack so it will be reversed when backbutton is pressed
    fragmentTransaction.addToBackStack(null);

    // Commit transaction
    fragmentTransaction.commit();        
}

我从容器Activity中调用它; 首次:

• 进入else语句,mBFrag替换为mAFrag.

然后我按下后退按钮:

• 并且操作被反转(显示了mAFrag,但是..删除了mBFrag？).

然后我通过从同一个Activity调用showBFrag()再次前进:

• 并且它获得了进入else语句的AGAIN.(所以我可以推断mBFrag没有添加)
• 但我得到一个Fragment已经添加了IllegalStateException ...(那么为什么它没有进入if语句呢？)

所以:

1. 为什么如果我已经添加了一个Fragment IllegalStateException,则isAdded()方法不会返回TRUE ？
2. popBackStack操作是否完全删除以前添加的片段？
3. 我误解了什么行为？

编辑:这是异常的完整信息.

06-07 12:08:32.730: ERROR/AndroidRuntime(8576): java.lang.IllegalStateException: Fragment …

添加后,我在一个非常简单的JSF 2页面中面临以下异常<h:form>:

java.lang.IllegalStateException: Cannot create a session after the response has been committed
    at org.apache.catalina.connector.Request.doGetSession(Request.java:2758)
    at org.apache.catalina.connector.Request.getSession(Request.java:2268)

我在Tomcat 7.0.22和JDK 7上使用Mojarra 2.1.3和PrimeFaces3.0M4.

该页面是一个非常基本的数据表:

<html xmlns="http://www.w3.org/1999/xhtml"
    xmlns:h="http://java.sun.com/jsf/html"
    xmlns:f="http://java.sun.com/jsf/core"
    xmlns:p="http://primefaces.org/ui">
<h:head>

</h:head>
<h:body>
    <h:form>        
        <p:dataTable var="car" value="#{tableBean.cars}">

                 ......
        </p:dataTable>
    </h:form>
</h:body>
</html>

页面在浏览器上正确显示,但在控制台上我看到了异常.如果我删除了,Exception确实会消失<h:form>.

这是怎么造成的,我该如何解决？

我使用的是ViewPager与例如ActionBar从Android文档拍摄选项卡在这里.

不幸的是,只要我调用该addTab方法,应用程序崩溃就会出现以下异常:

IllegalStateException:应用程序的PagerAdapter在不调用PagerAdapter#notifyDataSetChanged的情况下更改了适配器的内容!预期的适配器项目数为0,找到1.

这是FragmentPagerAdapter代码:

public static class TabsAdapter extends FragmentPagerAdapter
            implements ActionBar.TabListener, ViewPager.OnPageChangeListener {
        private final Context mContext;
        private final ActionBar mActionBar;
        private final ViewPager mViewPager;
        private final ArrayList<TabInfo> mTabs = new ArrayList<TabInfo>();

        static final class TabInfo {
            private final Class<?> clss;
            private final Bundle args;

            TabInfo(Class<?> _class, Bundle _args) {
                clss = _class;
                args = _args;
            }
        }

        public TabsAdapter(Activity activity, ViewPager pager) {
            super(activity.getFragmentManager());
            mContext = activity;
            mActionBar …