Various codegen performance improvements.

Only potentially impacting change: intermediate model is no longer written to disk, because it is not used.

Author: millems

bom-internal/pom.xml

@@ -42,7 +42,12 @@
             <dependency>
                 <groupId>com.fasterxml.jackson.jr</groupId>
                 <artifactId>jackson-jr-objects</artifactId>
-                <version>${jackson.version}</version>
+                <version>${jacksonjr.version}</version>
+            </dependency>
+            <dependency>
+                <groupId>com.fasterxml.jackson.jr</groupId>
+                <artifactId>jackson-jr-stree</artifactId>
+                <version>${jacksonjr.version}</version>
             </dependency>
             <dependency>
                 <groupId>org.slf4j</groupId>

build-tools/src/main/resources/software/amazon/awssdk/spotbugs-suppressions.xml

@@ -16,6 +16,20 @@
 
 <FindBugsFilter>
 
+    <!-- Ignore Java "Serializable" problems in the code generator. -->
+    <Match>
+        <Package name="~software\.amazon\.awssdk\.codegen.*"/>
+        <Bug pattern="SE_BAD_FIELD,SE_NO_SERIALVERSIONID,SE_BAD_FIELD_STORE"/>
+    </Match>
+
+
+    <!-- Ignore "confusing name" problems that result of needing to match the inconsistent naming in
+    the service model. -->
+    <Match>
+        <Package name="~software\.amazon\.awssdk\.codegen\.model.*"/>
+        <Bug pattern="NM_CONFUSING"/>
+    </Match>
+
     <Match>
         <!-- PZLA_PREFER_ZERO_LENGTH_ARRAYS: This rule causes many false positives, because sometimes we want to return
              null for arrays. -->