Avoids the following stacktrace:
java.lang.NullPointerException
at java.base/java.io.Reader.(Reader.java:168)
at java.base/java.io.InputStreamReader.(InputStreamReader.java:88)
at net.sourceforge.plantuml.utils.BlocLines.load(BlocLines.java:79)
at net.sourceforge.plantuml.style.CommandStyleImport.executeArg(CommandStyleImport.java:89)
Avoids the following stacktrace: java.lang.NullPointerException at java.base/java.io.Reader.(Reader.java:168)
at java.base/java.io.InputStreamReader.(InputStreamReader.java:88)
at net.sourceforge.plantuml.utils.BlocLines.load(BlocLines.java:79)
at net.sourceforge.plantuml.style.CommandStyleImport.executeArg(CommandStyleImport.java:89)