Fix issue #3030 NoSuchElementException when solving type

[4everTheOne]

Fixes #3030.

[codecov]

Codecov Report

Merging #3031 (0ca8963) into master (3392953) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master     #3031   +/-   ##
=========================================
  Coverage   50.468%   50.468%           
=========================================
  Files          450       450           
  Lines        25105     25105           
  Branches      3794      3794           
=========================================
  Hits         12670     12670           
  Misses       11456     11456           
  Partials       979       979           

Flag	Coverage Δ
AlsoSlowTests	50.468% <ø> (ø)
javaparser-core	50.468% <ø> (ø)
jdk-10	50.468% <ø> (ø)
jdk-11	50.468% <ø> (ø)
jdk-12	50.468% <ø> (ø)
jdk-13	50.468% <ø> (ø)
jdk-14	50.468% <ø> (ø)
jdk-15	50.468% <ø> (ø)
jdk-8	50.466% <ø> (ø)
jdk-9	50.468% <ø> (ø)
macos-latest	50.456% <ø> (ø)
ubuntu-latest	50.456% <ø> (ø)
windows-latest	50.456% <ø> (ø)

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[jlerbsc]

It seems like a reasonable and tested PR.