Explanation Although I can’t reproduce this on AbstractItemCountingItemStreamItemReader from this artifact implementation group: ‘org.springframework.batch’, name: ‘spring-batch-core’, version: ‘4.1.2.RELEASE’ , this annotation means that the parent method has some @NotNull / @NonNull annotation on the parameter, while the overriding method has no. To fix it, you need to put the same annotation on the overriding method. … Read more
Try this Object obj = ois.readObject(); // Check it’s an ArrayList if (obj instanceof ArrayList<?>) { // Get the List. ArrayList<?> al = (ArrayList<?>) obj; if (al.size() > 0) { // Iterate. for (int i = 0; i < al.size(); i++) { // Still not enough for a type. Object o = al.get(i); if (o … Read more
SHOW WARNINGS is the only method I’m aware of, but you have to run it immediately after a query that had warnings attached to it. If you ran any other queries in between, or dropped the connection, then SHOW WARNINGS won’t work. The MySQL manual page for SHOW WARNINGS doesn’t indicate any other methods, so … Read more
I’ve run into this annoyance, too. According to the GCC manpage -Wall turns on -Wunknown-pragmas for you, so just manually disable it using -Wno-unknown-pragmas after -Wall. There is a GCC feature request to make this work using #pragma GCC diagnostic: C++ preprocessor ignores #pragma GCC diagnostic
You can’t! I looked through the source code (thanks to apt-get source). There are no checks for lines to ignore. The relevant code is in parseFileOptions() in options.c But sometimes comments are a neccessity, so as a workaround I put a comment in as a regexp, in such as way that it is unlikely to … Read more
Aware that this might be a reply that some will find highly controversial, I’m still posting my opinion here… Proposed answer: Ignore the warning. If the user thinks/observes that the code suffers from poor performance, it’s the user’s responsibility to fix it, not the module’s responsibility to propose code refactoring steps. Rationale for this harsh … Read more
C strings are not anything like Java strings. They’re essentially arrays of characters. You are getting the error because strToLower returns a char. A char is a form of integer in C. You are assigning it into a char[] which is a pointer. Hence “converting integer to pointer”. Your strToLower makes all its changes in … Read more
Be explicit It depends on what you are trying to achieve. The governing rule is It is better to be explicit. Omitting the cases simply makes it look like you forgot some. Being explicit assures subsequent readers of your code that you intended to do nothing for certain events. In light of that, you have … Read more
In this case a[4] is the 5th integer in the array a, ap is a pointer to integer, so you are assigning an integer to a pointer and that’s the warning. So ap now holds 45 and when you try to de-reference it (by doing *ap) you are trying to access a memory at address … Read more