fix possible NPE because Kotlin toBoolean doesn't accept null opposite to Java API.

platform/analysis-impl/src/com/intellij/profile/codeInspection/ProjectInspectionProfileManager.kt

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2017 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.profile.codeInspection
 
 import com.intellij.codeInspection.InspectionProfile
@@ -37,6 +23,7 @@ import com.intellij.project.isDirectoryBased
 import com.intellij.psi.search.scope.packageSet.NamedScopeManager
 import com.intellij.psi.search.scope.packageSet.NamedScopesHolder
 import com.intellij.util.containers.ContainerUtil
+import com.intellij.util.getAttributeBooleanValue
 import com.intellij.util.loadElement
 import com.intellij.util.xmlb.Accessor
 import com.intellij.util.xmlb.SkipDefaultValuesSerializationFilters
@@ -238,10 +225,8 @@ class ProjectInspectionProfileManager(val project: Project,
     if (data != null && data.getChild("version")?.getAttributeValue("value") != VERSION) {
       for (o in data.getChildren("option")) {
         if (o.getAttributeValue("name") == "USE_PROJECT_LEVEL_SETTINGS") {
-          if (o.getAttributeValue("value").toBoolean()) {
-            if (newState.projectProfile != null) {
-              currentProfile.convert(data, project)
-            }
+          if (o.getAttributeBooleanValue("value") && newState.projectProfile != null) {
+            currentProfile.convert(data, project)
           }
           break
         }

platform/lang-api/src/com/intellij/codeInsight/hints/settings/ParameterNameHintsSettings.kt

@@ -1,18 +1,16 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2017 JetBrains s.r.o.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
 package com.intellij.codeInsight.hints.settings
 
 import com.intellij.lang.Language
@@ -20,6 +18,7 @@ import com.intellij.openapi.components.PersistentStateComponent
 import com.intellij.openapi.components.ServiceManager
 import com.intellij.openapi.components.State
 import com.intellij.openapi.components.Storage
+import com.intellij.util.getAttributeBooleanValue
 import org.jdom.Element
 
 
@@ -133,8 +132,7 @@ class ParameterNameHintsSettings : PersistentStateComponent<Element> {
     
     state.getChildren("option").forEach { 
       val id = it.getAttributeValue("id")
-      val value = it.getAttributeValue("value").toBoolean()
-      options[id] = value
+      options[id] = it.getAttributeBooleanValue("value")
     }
   }
   

platform/lang-impl/src/com/intellij/execution/impl/RunManagerImpl.kt

@@ -27,6 +27,7 @@ import com.intellij.openapi.util.registry.Registry
 import com.intellij.util.IconUtil
 import com.intellij.util.SmartList
 import com.intellij.util.containers.*
+import com.intellij.util.getAttributeBooleanValue
 import com.intellij.util.text.UniqueNameGenerator
 import gnu.trove.THashMap
 import org.jdom.Element
@@ -605,7 +606,7 @@ open class RunManagerImpl(internal val project: Project) : RunManagerEx(), Persi
 
     for (element in parentNode.children) {
       val config = loadConfiguration(element, false)
-      if (selectedConfigurationId == null && element.getAttributeValue(SELECTED_ATTR).toBoolean()) {
+      if (selectedConfigurationId == null && element.getAttributeBooleanValue(SELECTED_ATTR)) {
         selectedConfigurationId = config.uniqueID
       }
     }
@@ -693,7 +694,7 @@ open class RunManagerImpl(internal val project: Project) : RunManagerEx(), Persi
     }
     else {
       addConfiguration(settings)
-      if (element.getAttributeValue(SELECTED_ATTR).toBoolean()) {
+      if (element.getAttributeBooleanValue(SELECTED_ATTR)) {
         // to support old style
         selectedConfiguration = settings
       }

platform/lang-impl/src/com/intellij/execution/impl/RunnerAndConfigurationSettingsImpl.kt

@@ -22,6 +22,7 @@ import com.intellij.openapi.util.*
 import com.intellij.openapi.util.text.StringUtil
 import com.intellij.util.PathUtilRt
 import com.intellij.util.SmartList
+import com.intellij.util.getAttributeBooleanValue
 import gnu.trove.THashMap
 import gnu.trove.THashSet
 import org.jdom.Element
@@ -148,16 +149,16 @@ class RunnerAndConfigurationSettingsImpl @JvmOverloads constructor(private val m
   override fun getFolderName() = folderName
 
   fun readExternal(element: Element, isShared: Boolean) {
-    isTemplate = element.getAttributeValue(TEMPLATE_FLAG_ATTRIBUTE).toBoolean()
+    isTemplate = element.getAttributeBooleanValue(TEMPLATE_FLAG_ATTRIBUTE)
 
     if (isShared) {
       level = RunConfigurationLevel.PROJECT
     }
     else {
-      level = if (element.getAttributeValue(TEMPORARY_ATTRIBUTE).toBoolean() || TEMP_CONFIGURATION == element.name) RunConfigurationLevel.TEMPORARY else RunConfigurationLevel.WORKSPACE
+      level = if (element.getAttributeBooleanValue(TEMPORARY_ATTRIBUTE) || TEMP_CONFIGURATION == element.name) RunConfigurationLevel.TEMPORARY else RunConfigurationLevel.WORKSPACE
     }
 
-    isEditBeforeRun = (element.getAttributeValue(EDIT_BEFORE_RUN)).toBoolean()
+    isEditBeforeRun = (element.getAttributeBooleanValue(EDIT_BEFORE_RUN))
     val value = element.getAttributeValue(ACTIVATE_TOOLWINDOW_BEFORE_RUN)
     isActivateToolWindowBeforeRun = value == null || value.toBoolean()
     folderName = element.getAttributeValue(FOLDER_NAME)

platform/projectModel-api/src/com/intellij/util/jdom.kt

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2017 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.util
 
 import com.intellij.openapi.util.JDOMUtil
@@ -140,4 +126,6 @@ fun Parent.toBufferExposingByteArray(lineSeparator: String = "\n"): BufferExposi
   val out = BufferExposingByteArrayOutputStream(512)
   JDOMUtil.write(this, out, lineSeparator)
   return out
-}
+}
+
+fun Element.getAttributeBooleanValue(name: String): Boolean = java.lang.Boolean.parseBoolean(getAttributeValue(name))