While Java is one of the most in-demand and widely used programming languages in the world, it is not without its detractors. Java is not a particularly beginner-friendly language and it is rife with ...

Javaを学び始めたあなた、きっとこんな経験ありませんか？ 「null pointer exception」ってなに…？ 変数に何も入ってないとき、どう扱えばいいの？ == null で比べていいの？それともダメ？ 今回は、そんな 「null」あるあるの疑問をスッキリ解決！ エラーになら ...

java.lang.NullPointerException at org.eclipse.swtchart.internal.compress.Compress.getCompressedXSeries(Compress.java:92) at org.eclipse.swtchart.internal.series ...

I'm using source connector for my dynamo table. There are no problems until I delete an item from the table, and this is what I got when I delete the item: 2017-05-01 14:12:28,609] ERROR Task dynamodb ...