Fix IllegalArgumentException (#49)

Author: mohamead

src/main/kotlin/no/spk/fiskeoye/plugin/settings/FiskeoyeState.kt

@@ -4,6 +4,7 @@ import com.intellij.openapi.application.ApplicationManager
 import com.intellij.openapi.components.PersistentStateComponent
 import com.intellij.openapi.components.State
 import com.intellij.openapi.components.Storage
+import com.intellij.openapi.diagnostic.Logger
 import com.intellij.util.xmlb.XmlSerializerUtil
 import no.spk.fiskeoye.plugin.enum.FontStyle
 
@@ -13,6 +14,8 @@ import no.spk.fiskeoye.plugin.enum.FontStyle
 )
 internal class FiskeoyeState : PersistentStateComponent<FiskeoyeState> {
 
+    private val logger: Logger = Logger.getInstance(FiskeoyeState::class.java)
+
     // Appearance
     internal var fontName: String = "Jetbrains Mono"
     internal var fontStyle: FontStyle = FontStyle.PLAIN
@@ -23,7 +26,14 @@ internal class FiskeoyeState : PersistentStateComponent<FiskeoyeState> {
     internal var truncSize: Int = 3000
     internal var codeLength: Int = 400
 
-    override fun getState(): FiskeoyeState = ApplicationManager.getApplication().getService(FiskeoyeState::class.java) ?: this
+    override fun getState(): FiskeoyeState {
+        return try {
+            ApplicationManager.getApplication().getService(FiskeoyeState::class.java)
+        } catch (ex: Exception) {
+            logger.warn(ex.message, ex)
+            this
+        }
+    }
 
     override fun loadState(state: FiskeoyeState) = XmlSerializerUtil.copyBean(state, this)