Cleanup after code review feedback

Author: JLLeitschuh

java/ql/lib/semmle/code/java/frameworks/Properties.qll

@@ -2,11 +2,11 @@
 import semmle.code.java.Type
 private import semmle.code.java.dataflow.FlowSteps
 
-library class TypeProperty extends Class {
+class TypeProperty extends Class {
   TypeProperty() { hasQualifiedName("java.util", "Properties") }
 }
 
-library class PropertiesGetPropertyMethod extends ValuePreservingMethod {
+class PropertiesGetPropertyMethod extends ValuePreservingMethod {
   PropertiesGetPropertyMethod() {
     getDeclaringType() instanceof TypeProperty and
     hasName("getProperty")
@@ -15,21 +15,21 @@ library class PropertiesGetPropertyMethod extends ValuePreservingMethod {
   override predicate returnsValue(int arg) { arg = 1 }
 }
 
-library class PropertiesGetMethod extends Method {
+class PropertiesGetMethod extends Method {
   PropertiesGetMethod() {
     getDeclaringType() instanceof TypeProperty and
     hasName("get")
   }
 }
 
-library class PropertiesSetPropertyMethod extends Method {
+class PropertiesSetPropertyMethod extends Method {
   PropertiesSetPropertyMethod() {
     getDeclaringType() instanceof TypeProperty and
     hasName("setProperty")
   }
 }
 
-library class PropertiesStoreMethod extends Method {
+class PropertiesStoreMethod extends Method {
   PropertiesStoreMethod() {
     getDeclaringType() instanceof TypeProperty and
     (getName().matches("store%") or getName() = "save")

java/ql/src/change-notes/2022-02-14-os-guards.md

@@ -4,5 +4,5 @@ category: minorAnalysis
  * Add new guards `IsWindowsGuard`, `IsSpecificWindowsVariant`, `IsUnixGuard`, and `IsSpecificUnixVariant` to detect OS specific guards.
  * Add new predicate `getSystemProperty` that gets all expressions that retrieve system properties from a variety of sources (eg. alternative JDK API's, Google Guava, Apache Commons, Apache IO, ect..).
  * Update "Local information disclosure in a temporary directory" (`java/local-temp-file-or-directory-information-disclosure`) to remove false-positives when OS is properly used as logical guard.
- * Update "Local information disclosure in a temporary directory" (`java/local-temp-file-or-directory-information-disclosure`) to use `getSystemProperty` to resolve more 
+ * Update "Local information disclosure in a temporary directory" (`java/local-temp-file-or-directory-information-disclosure`) to use `getSystemProperty` to use new `getSystemProperty` predicate.