nullpointerexception

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NullPointerException on getWritableDatabase after adding Fragments to my project

I had a working project, now I wanted to upgrade the layout and I\'m trying to add Fragments (pre honeycomb), but now seems like I\'m having some troubles connecting to my DB, and I\'m getting NullPoi[详细]

2023-03-23 05:06 分类：问答
Posting JSON data with Groovy's HTTPBuilder

I\'ve found this doc on how to post JSON data using HttpBuilder. I\'m new to this, but it is very straightforward example and easy to follow. Here is the code, assuming I had imported all required dep[详细]

2023-03-23 04:56 分类：问答
Null Poiner Exception while configuring solr and sql server

I am getting this error when i am trying to index a table from database on sql server: SEVERE: Exception while processing: APPLICATION document : SolrInputDocument[{}]:org.apache.solr.handler.dataimp[详细]

2023-03-23 00:11 分类：问答
Android : NullPointerException while adding Resources

I\'m getting a NullPointerException when running this bit of code abstract class thing extends Drawable(){[详细]

2023-03-22 18:15 分类：问答
java static field from null [duplicate]

This question already has answers here: 开发者_JAVA百科How come invoking a (static) method on a null reference doesn't throw NullPointerException?[详细]

2023-03-22 15:26 分类：问答
Android - How to Generate Key Presses Programmatically

After reading through this \" How to Generate Key Presses Programmatically Android \" and the associated answers, I created a class that extends InputMethodService, but is empty otherwise.[详细]

2023-03-22 13:31 分类：问答
NullPointerException in jsp but not in console

RecupData my class returns a NullPointerException only in the web. I connect to a pgsql db 8.3.7 - the script works well in \'console\' syso - but a test web NullPointerException is thrown[详细]

2023-03-22 09:16 分类：问答
Send byte array from web service to client

I want to send a byte array from a web service to a client that requests an operation exposed via the service. In my method, I read an image into a byte array. I think place this byte array into a wra[详细]

2023-03-22 05:49 分类：问答
Why is NPE thrown when finishing Activity?

I have an error that has been driving me crazy for days.Unfortunately, I can not show you the code for two reason, my boss will not appreciate it and the codebase is too large to share.The error occur[详细]

2023-03-22 02:54 分类：问答
Calling test from another class of selenium in java

This is my method which call a function from another class Selenium Setup is defined hear. public void Transfer() throws Exception {[详细]

2023-03-21 23:58 分类：问答