Hardware: Raspberry Pi 4/1 GiB RAM/ 32 GiB SD card
OS: openhabian 6.6.31
Java Runtime Environment: OpenJDK 17.0.12
openHAB version: 4.2.1
Issue of the topic: When clicking on a trend chart in the Android app it used to load a larger chart with a tool to select the date range. Recently opening the chart works, but clicking on it to open the chart view with the time selector fails. When viewing the sitemap through HTTP (openhabserver/basicui) the trends and time selector works as expected. It appears to be a problem with parsing a datetime string in Java, see error below. The datetime format as received do appear to be incorrect, since it contains to T fields, however I do not know the origin of the date string.
Please post configurations (if applicable): Not sure what configuration is relevant.
If logs where generated please post these here using code fences:
2026-03-25 19:35:31.140 [ERROR] [internal.JSONResponseExceptionMapper] - Unexpected exception occurred while processing REST request.
java.lang.IllegalArgumentException: 2026-03-24T19:35:31.014+02:00[Africa/Johannesburg] is not in a valid format.
at org.openhab.core.library.types.DateTimeType.<init>(DateTimeType.java:114) ~[?:?]
at org.openhab.core.io.rest.core.internal.persistence.PersistenceResource.convertTime(PersistenceResource.java:339) ~[?:?]
at org.openhab.core.io.rest.core.internal.persistence.PersistenceResource.createDTO(PersistenceResource.java:383) ~[?:?]
at org.openhab.core.io.rest.core.internal.persistence.PersistenceResource.getItemHistoryDTO(PersistenceResource.java:349) ~[?:?]
at org.openhab.core.io.rest.core.internal.persistence.PersistenceResource.httpGetPersistenceItemData(PersistenceResource.java:298) ~[?:?]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
