Minor fixes for fluent apis

Author: Benjamin Muskalla

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

@@ -12,7 +12,6 @@ private class ObjectsSummaryCsv extends SummaryModelCsv {
         "java.util;Objects;false;requireNonNullElse;;;Argument[0];ReturnValue;value",
         "java.util;Objects;false;requireNonNullElse;;;Argument[1];ReturnValue;value",
         "java.util;Objects;false;requireNonNullElseGet;;;Argument[0];ReturnValue;value",
-        "java.util;Objects;false;requireNonNullElseGet;;;Argument[1];ReturnValue;value",
         "java.util;Objects;false;toString;;;Argument[1];ReturnValue;value"
       ]
   }

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

@@ -39,15 +39,14 @@ private class StringSummaryCsv extends SummaryModelCsv {
         "java.lang;String;false;valueOf;(char[],int,int);;Argument[0];ReturnValue;taint",
         "java.lang;String;false;valueOf;(char[]);;Argument[0];ReturnValue;taint",
         "java.io;StringWriter;true;append;;;Argument[0];Argument[-1];taint",
-        "java.io;StringWriter;true;append;;;Argument[0];ReturnValue;taint",
+        "java.io;StringWriter;true;append;;;Argument[-1];ReturnValue;taint",
         "java.io;StringWriter;true;write;;;Argument[0];Argument[-1];taint",
         "java.lang;AbstractStringBuilder;true;AbstractStringBuilder;(String);;Argument[0];Argument[-1];taint",
         "java.lang;AbstractStringBuilder;true;append;;;Argument[0];Argument[-1];taint",
         "java.lang;AbstractStringBuilder;true;append;;;Argument[-1];ReturnValue;value",
-        "java.lang;AbstractStringBuilder;true;append;;;Argument[0];ReturnValue;taint",
         "java.lang;AbstractStringBuilder;true;insert;;;Argument[1];Argument[-1];taint",
         "java.lang;AbstractStringBuilder;true;insert;;;Argument[-1];ReturnValue;taint",
-        "java.lang;AbstractStringBuilder;true;replace;;;Argument[2];ReturnValue;taint",
+        "java.lang;AbstractStringBuilder;true;replace;;;Argument[-1];ReturnValue;value",
         "java.lang;AbstractStringBuilder;true;replace;;;Argument[2];Argument[-1];taint",
         "java.lang;AbstractStringBuilder;true;toString;;;Argument[-1];ReturnValue;taint",
         "java.lang;StringBuffer;true;StringBuffer;(CharSequence);;Argument[0];Argument[-1];taint",