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Getting the error “Java.lang.IllegalStateException Activity has been destroyed” when using tabs with
I have an application that consists of using ActionBarSherlock in tab mode.I have 5 tabs and the content of each tab is handled using fragments. For tab2 though, I have a fragment the xml file of which holds a ViewPager element which in turn has some fragment pages. When I initially start the applic...
How do I import the javax.servlet API in my Eclipse project?
...cific libraries in a careless attempt to fix the compilation errors:
java.lang.NullPointerException at org.apache.jsp.index_jsp._jspInit
java.lang.NoClassDefFoundError: javax/el/ELResolver
java.lang.NoSuchFieldError: IS_DIR
java.lang.NoSuchMethodError: javax.servlet.jsp.PageContext.getELContext()Lj...
Creating an instance using the class name and calling constructor
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when using (i.e.) getConstructor(String.lang) the constructor has to be declared public.
Otherwise a NoSuchMethodException is thrown.
if you want to access a non-public constructor you have to use instead (i.e.) getDeclaredConstructor(String.lang).
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The most sophisticated way for creating comma-separated Strings from a Collection/Array/List?
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Meanwhile, org.apache.commons.lang.StringUtils remains unchanged. :-)
– Ogre Psalm33
Mar 28 '12 at 19:42
1
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Changing Locale within the app itself
...gs in English but read the content of my app in French, Dutch or any other language ...)
6 Answers
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How to get Android crash logs?
... to uncaught exception
09-04 21:35:15.397: ERROR/AndroidRuntime(778): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.dazlious.android.helloworld/com.dazlious.android.helloworld.main}: java.lang.ArrayIndexOutOfBoundsException
09-04 21:35:15.397: ERROR/AndroidRuntime(778): ...
java.lang.IllegalStateException: The specified child already has a parent
I am using fragments, when I instantiate a fragment the first time it it. but the second time I got this exception. I couldn't find the line where I got the error?
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Java project in Eclipse: The type java.lang.Object cannot be resolved. It is indirectly referenced f
... then. See http://dev-answers.blogspot.de/2009/06/eclipse-build-errors-javalangobject.html for a possible solution, otherwise try the following;
Close the project and reopen it.
Clean the project (It will rebuild the buildpath hence reconfiguring with the JDK libraries)
OR
Delete and Re-import th...
java.lang.NoClassDefFoundError: org/hamcrest/SelfDescribing
While running junit test in eclipse I am getting this Exception :
17 Answers
17
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How do I get a class instance of generic type T?
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getClass() is a method of java.lang.Object which will return the class of the specific object at runtime, this is the object you want to resolve the type for. AbstractHibernateDao.class is just the name of the base class or superclass of the generic type c...