[//]: # (title: Incompatible Changes in IntelliJ Platform and Plugins API 2021.*)

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## 2021.2
                              
### Changes in IntelliJ Platform 2021.2

`com.intellij.openapi.editor.impl.event.DocumentEventImpl.translateLineViaDiff(int)` method removed
: Use persistent range markers instead, see `com.intellij.openapi.editor.Document.createRangeMarker(int, int, boolean)` with `surviveOnExternalChange=true`.

`com.intellij.openapi.editor.impl.event.DocumentEventImpl.translateLineViaDiffStrict(int)` method removed
: Use persistent range markers instead, see `com.intellij.openapi.editor.Document.createRangeMarker(int, int, boolean)` with `surviveOnExternalChange=true`.
                                      
`com.intellij.openapi.file.exclude.EnforcedPlainTextFileType` class removed
: Use `com.intellij.openapi.fileTypes.PlainTextFileType` instead.

## 2021.1
                              
### Changes in IntelliJ Platform 2021.1

`com.intellij.util.io.PersistentHashMap.isCorrupted` method removed
: The storage checks for corruption automatically, there is no need of any explicit additional checks.

`com.intellij.lang.StdLanguages.JSPX` field removed
: Add a dependency on the `com.intellij.jsp` plugin and replace the reference with `com.intellij.lang.jspx.JspxLanguageImpl.INSTANCE`

`com.intellij.lang.StdLanguages.JSP` field removed
: Add a dependency on the `com.intellij.jsp` plugin and replace the reference with `com.intellij.lang.jsp.NewJspLanguage.getInstance()`

`com.intellij.ide.actions.searcheverywhere.SEResultsEqualityProvider.compareItems(alreadyFoundItem)` method parameter type changed from `SearchEverywhereFoundElementInfo` to `List<SearchEverywhereFoundElementInfo>`
: New API is more abstract which allows to review all already found items before making "deduplication" decision. Also consider implementing `com.intellij.ide.actions.searcheverywhere.AbstractEqualityProvider` instead of `com.intellij.ide.actions.searcheverywhere.SEResultsEqualityProvider`.

`com.intellij.ide.actions.searcheverywhere.SEResultsEqualityProvider.SEEqualElementsActionType.SKIP` field removed
: Enum class `SEEqualElementsActionType` was converted to sealed class with the same name.

`com.intellij.ide.actions.searcheverywhere.SEResultsEqualityProvider.SEEqualElementsActionType.DO_NOTHING` field removed
: Enum class `SEEqualElementsActionType` was converted to sealed class with the same name.

`com.intellij.ide.actions.searcheverywhere.SEResultsEqualityProvider.SEEqualElementsActionType.Replace` field removed
: Enum class `SEEqualElementsActionType` was converted to sealed class with the same name.

`org.sqlite.SQLiteConfig.setBusyTimeout(String)` method parameter type changed from `String` to `int`
: Please use updated sqlite-jdbc api.

`com.intellij.usages.impl.rules.UsageTypeProvider.getUsageType` method `PsiElement` parameter marked `@NotNull`
: This may break source-compatibility with inheritors written in Kotlin if they declare parameter type as nullable.

`com.jetbrains.performancePlugin.CommandProvider.getCommands(Project)` method parameter `Project` removed
: Project is now only accessible via `com.intellij.openapi.ui.playback.PlaybackContext.getProject()` since it may change during script execution. 
                                
JSON Widget suppressor EP `com.intellij.json.jsonWidgetSuppressor`                                    
: Override new method [`JsonWidgetSuppressor.isCandidateForSuppress(VirtualFile, Project)`](upsource:///json/src/com/jetbrains/jsonSchema/extension/JsonWidgetSuppressor.java) for quick check in EDT before `suppressSwitcherWidget()` is called on background thread.

### Changes in HTTP Client Plugin 2021.1

`com.intellij.ws.rest.client` package removed
: Replaced by `com.intellij.httpClient.execution` in HTTP Client plugin

`com.intellij.ws.actions` package removed
: Replaced by `com.intellij.httpClient.actions` in HTTP Client plugin

`com.intellij.ws.converters` package removed
: Replaced by `com.intellij.httpClient.converters` in HTTP Client plugin

`com.intellij.ws.http.request` package removed
: Replaced by `com.intellij.httpClient.http.request` in HTTP Client plugin
                          
### Java UML Plugin 2021.1

Rename of packages to `.java.` specific variants
: A number of packages have been renamed: `com.intellij.uml.utils` becomes `com.intellij.uml.java.utils`, `com.intellij.uml.project` becomes `com.intellij.uml.java.project`, and `com.intellij.uml.jigsaw` becomes `com.intellij.uml.java.jigsaw`.