Console errors thrown when using certain characters in the Custom Filter query string

• Type: Bug
• Status: Verified
• Resolution: Unresolved
• Affects Version/s: 7.2.X, Master
• Fix Version/s: None
• Component/s: Web Search > Search Widgets
• Labels: None
• Fix Priority: 3

Steps to reproduce

1. Navigate to the search page
2. Add the Custom Filter widget with the following:

   Filter Query Type: Query String
   Occur: Filter
   

1. Search for "test"
2. Add "{}" to the Custom Filter field and click Apply

Expected Result
Expected no stacktraces

Actual Result
Following stracktrace is seen. This can be reproduced with other characters as well, including ":", "[]", "/"

2019-05-15 00:03:50.683 ERROR [http-nio-8080-exec-1][ElasticsearchIndexSearcher:173] java.lang.RuntimeException: org.elasticsearch.action.search.SearchPhaseExecutionException: Failed to execute phase [query], all shards failed; shardFailures {[HoLFaRmRTIaR2PL_vVsgTA][liferay-20101][0]: RemoteTransportException[[HoLFaRm][127.0.0.1:9300][indices:data/read/search[phase/query]]]; nested: QueryShardException[Failed to parse query [{}]]; nested: ParseException[Cannot parse '{}': Encountered " "}" "} "" at line 1, column 1._Was expecting one of:_    "TO" ..._    <RANGE_QUOTED> ..._    <RANGE_GOOP> ..._    ]; nested: ParseException[Encountered " "}" "} "" at line 1, column 1._Was expecting one of:_    "TO" ..._    <RANGE_QUOTED> ..._    <RANGE_GOOP> ..._    ]; } [Sanitized]
java.lang.RuntimeException: org.elasticsearch.action.search.SearchPhaseExecutionException: Failed to execute phase [query], all shards failed; shardFailures {[HoLFaRmRTIaR2PL_vVsgTA][liferay-20101][0]: RemoteTransportException[[HoLFaRm][127.0.0.1:9300][indices:data/read/search[phase/query]]]; nested: QueryShardException[Failed to parse query [{}]]; nested: ParseException[Cannot parse '{}': Encountered " "}" "} "" at line 1, column 1._Was expecting one of:_    "TO" ..._    <RANGE_QUOTED> ..._    <RANGE_GOOP> ..._    ]; nested: ParseException[Encountered " "}" "} "" at line 1, column 1._Was expecting one of:_    "TO" ..._    <RANGE_QUOTED> ..._    <RANGE_GOOP> ..._    ]; } [Sanitized]
	at org.elasticsearch.action.search.AbstractSearchAsyncAction.onPhaseFailure(AbstractSearchAsyncAction.java:293)
	at org.elasticsearch.action.search.AbstractSearchAsyncAction.executeNextPhase(AbstractSearchAsyncAction.java:133)
	at org.elasticsearch.action.search.AbstractSearchAsyncAction.onPhaseDone(AbstractSearchAsyncAction.java:254)
	at org.elasticsearch.action.search.InitialSearchPhase.onShardFailure(InitialSearchPhase.java:101)
	at org.elasticsearch.action.search.InitialSearchPhase.access$100(InitialSearchPhase.java:48)
	at org.elasticsearch.action.search.InitialSearchPhase$2.lambda$onFailure$1(InitialSearchPhase.java:222)
	at org.elasticsearch.action.search.InitialSearchPhase.maybeFork(InitialSearchPhase.java:176)
	at org.elasticsearch.action.search.InitialSearchPhase.access$000(InitialSearchPhase.java:48)
	at org.elasticsearch.action.search.InitialSearchPhase$2.onFailure(InitialSearchPhase.java:222)
	at org.elasticsearch.action.search.SearchExecutionStatsCollector.onFailure(SearchExecutionStatsCollector.java:73)
	at org.elasticsearch.action.ActionListenerResponseHandler.handleException(ActionListenerResponseHandler.java:51)
	at org.elasticsearch.action.search.SearchTransportService$ConnectionCountingHandler.handleException(SearchTransportService.java:464)
	at org.elasticsearch.transport.TransportService$ContextRestoreResponseHandler.handleException(TransportService.java:1130)
	at org.elasticsearch.transport.TransportService$DirectResponseChannel.processException(TransportService.java:1247)
	at org.elasticsearch.transport.TransportService$DirectResponseChannel.sendResponse(TransportService.java:1221)
	at org.elasticsearch.transport.TaskTransportChannel.sendResponse(TaskTransportChannel.java:66)
	at org.elasticsearch.action.support.HandledTransportAction$ChannelActionListener.onFailure(HandledTransportAction.java:112)
	at org.elasticsearch.search.SearchService$2.onFailure(SearchService.java:347)
	at org.elasticsearch.search.SearchService$2.onResponse(SearchService.java:341)
	at org.elasticsearch.search.SearchService$2.onResponse(SearchService.java:335)
	at org.elasticsearch.search.SearchService$4.doRun(SearchService.java:1082)
	at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:723)
	at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37)
	at org.elasticsearch.common.util.concurrent.TimedRunnable.doRun(TimedRunnable.java:41)
	at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
2019-05-15 00:03:50.708 ERROR [http-nio-8080-exec-6][ElasticsearchIndexSearcher:173] java.lang.RuntimeException: org.elasticsearch.action.search.SearchPhaseExecutionException: Failed to execute phase [query], all shards failed; shardFailures {[HoLFaRmRTIaR2PL_vVsgTA][liferay-20101][0]: RemoteTransportException[[HoLFaRm][127.0.0.1:9300][indices:data/read/search[phase/query]]]; nested: QueryShardException[Failed to parse query [{}]]; nested: ParseException[Cannot parse '{}': Encountered " "}" "} "" at line 1, column 1._Was expecting one of:_    "TO" ..._    <RANGE_QUOTED> ..._    <RANGE_GOOP> ..._    ]; nested: ParseException[Encountered " "}" "} "" at line 1, column 1._Was expecting one of:_    "TO" ..._    <RANGE_QUOTED> ..._    <RANGE_GOOP> ..._    ]; } [Sanitized]
java.lang.RuntimeException: org.elasticsearch.action.search.SearchPhaseExecutionException: Failed to execute phase [query], all shards failed; shardFailures {[HoLFaRmRTIaR2PL_vVsgTA][liferay-20101][0]: RemoteTransportException[[HoLFaRm][127.0.0.1:9300][indices:data/read/search[phase/query]]]; nested: QueryShardException[Failed to parse query [{}]]; nested: ParseException[Cannot parse '{}': Encountered " "}" "} "" at line 1, column 1._Was expecting one of:_    "TO" ..._    <RANGE_QUOTED> ..._    <RANGE_GOOP> ..._    ]; nested: ParseException[Encountered " "}" "} "" at line 1, column 1._Was expecting one of:_    "TO" ..._    <RANGE_QUOTED> ..._    <RANGE_GOOP> ..._    ]; } [Sanitized]
	at org.elasticsearch.action.search.AbstractSearchAsyncAction.onPhaseFailure(AbstractSearchAsyncAction.java:293)
	at org.elasticsearch.action.search.AbstractSearchAsyncAction.executeNextPhase(AbstractSearchAsyncAction.java:133)
	at org.elasticsearch.action.search.AbstractSearchAsyncAction.onPhaseDone(AbstractSearchAsyncAction.java:254)
	at org.elasticsearch.action.search.InitialSearchPhase.onShardFailure(InitialSearchPhase.java:101)
	at org.elasticsearch.action.search.InitialSearchPhase.access$100(InitialSearchPhase.java:48)
	at org.elasticsearch.action.search.InitialSearchPhase$2.lambda$onFailure$1(InitialSearchPhase.java:222)
	at org.elasticsearch.action.search.InitialSearchPhase.maybeFork(InitialSearchPhase.java:176)
	at org.elasticsearch.action.search.InitialSearchPhase.access$000(InitialSearchPhase.java:48)
	at org.elasticsearch.action.search.InitialSearchPhase$2.onFailure(InitialSearchPhase.java:222)
	at org.elasticsearch.action.search.SearchExecutionStatsCollector.onFailure(SearchExecutionStatsCollector.java:73)
	at org.elasticsearch.action.ActionListenerResponseHandler.handleException(ActionListenerResponseHandler.java:51)
	at org.elasticsearch.action.search.SearchTransportService$ConnectionCountingHandler.handleException(SearchTransportService.java:464)
	at org.elasticsearch.transport.TransportService$ContextRestoreResponseHandler.handleException(TransportService.java:1130)
	at org.elasticsearch.transport.TransportService$DirectResponseChannel.processException(TransportService.java:1247)
	at org.elasticsearch.transport.TransportService$DirectResponseChannel.sendResponse(TransportService.java:1221)
	at org.elasticsearch.transport.TaskTransportChannel.sendResponse(TaskTransportChannel.java:66)
	at org.elasticsearch.action.support.HandledTransportAction$ChannelActionListener.onFailure(HandledTransportAction.java:112)
	at org.elasticsearch.search.SearchService$2.onFailure(SearchService.java:347)
	at org.elasticsearch.search.SearchService$2.onResponse(SearchService.java:341)
	at org.elasticsearch.search.SearchService$2.onResponse(SearchService.java:335)
	at org.elasticsearch.search.SearchService$4.doRun(SearchService.java:1082)
	at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:723)
	at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37)
	at org.elasticsearch.common.util.concurrent.TimedRunnable.doRun(TimedRunnable.java:41)
	at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

Reproduced on:
Tomcat 9.0.17 + MySQL 5.7
Portal master GIT ID: b4c0890a995af2912793ee3566ba58125d309ba0