According to our documentation (sdkj_userguide_eRxxx.pdf, around page 16), a J522 error is an extended feature startup failed problem. In this case, most of the time, a problem is in the life cycle method initXlet(). Some things to keep in mind are the execution time of the life cycle methods. If the application takes longer than specified by the specification to execute errors like J522 may occur. Also check that the main class in the main jar is being set correctly in the dalp file.
| Method | Time |
| void initXlet() | 3 seconds |
| void startXlet() | 1 second |
| void pauseXlet() | 1 second |
| void destroyXlet() | 0.5 second |
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