Please describe what you were doing when this exception occurred.
Expected behavior
A clear and concise description of what you expected to happen.
Screenshots
If applicable, add screenshots to help explain your problem.
Version information
OS: Windows 11 10.0 amd64
IDE: IntelliJ IDEA 2021.3.1(IC-213.6461.79)
Plugin: Spring Boot Assistant 203.17.2
Exception
null
Stack trace
```
java.lang.NullPointerException
at in.oneton.idea.spring.assistant.plugin.suggestion.service.SuggestionServiceImpl.addPropertiesToIndex(SuggestionServiceImpl.java:459)
at in.oneton.idea.spring.assistant.plugin.suggestion.service.SuggestionServiceImpl.buildMetadataHierarchy(SuggestionServiceImpl.java:390)
at in.oneton.idea.spring.assistant.plugin.suggestion.service.SuggestionServiceImpl.processContainers(SuggestionServiceImpl.java:356)
at in.oneton.idea.spring.assistant.plugin.suggestion.service.SuggestionServiceImpl.lambda$reindex$11(SuggestionServiceImpl.java:266)
at com.intellij.openapi.project.DumbService.lambda$runReadActionInSmartMode$1(DumbService.java:157)
at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:865)
at com.intellij.openapi.application.ReadAction.compute(ReadAction.java:61)
at com.intellij.openapi.project.DumbService.runReadActionInSmartMode(DumbService.java:150)
at in.oneton.idea.spring.assistant.plugin.suggestion.service.SuggestionServiceImpl.lambda$reindex$12(SuggestionServiceImpl.java:255)
at com.intellij.openapi.application.impl.ApplicationImpl$1.run(ApplicationImpl.java:263)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:668)
at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:665)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1.run(Executors.java:665)
at java.base/java.lang.Thread.run(Thread.java:829)
```
What happened
Expected behavior
Screenshots
Version information
Windows 11 10.0 amd64IntelliJ IDEA 2021.3.1(IC-213.6461.79)Spring Boot Assistant 203.17.2Exception
null
Stack trace
``` java.lang.NullPointerException at in.oneton.idea.spring.assistant.plugin.suggestion.service.SuggestionServiceImpl.addPropertiesToIndex(SuggestionServiceImpl.java:459) at in.oneton.idea.spring.assistant.plugin.suggestion.service.SuggestionServiceImpl.buildMetadataHierarchy(SuggestionServiceImpl.java:390) at in.oneton.idea.spring.assistant.plugin.suggestion.service.SuggestionServiceImpl.processContainers(SuggestionServiceImpl.java:356) at in.oneton.idea.spring.assistant.plugin.suggestion.service.SuggestionServiceImpl.lambda$reindex$11(SuggestionServiceImpl.java:266) at com.intellij.openapi.project.DumbService.lambda$runReadActionInSmartMode$1(DumbService.java:157) at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:865) at com.intellij.openapi.application.ReadAction.compute(ReadAction.java:61) at com.intellij.openapi.project.DumbService.runReadActionInSmartMode(DumbService.java:150) at in.oneton.idea.spring.assistant.plugin.suggestion.service.SuggestionServiceImpl.lambda$reindex$12(SuggestionServiceImpl.java:255) at com.intellij.openapi.application.impl.ApplicationImpl$1.run(ApplicationImpl.java:263) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:668) at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:665) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1.run(Executors.java:665) at java.base/java.lang.Thread.run(Thread.java:829) ```Additional context