gson,junrar,rome: refine build scripts

The general `find` command is causing some friction in fuzz introspector
projects. This PR makes sure the projects only build the fuzzing
harnesses that are meant to be build.

Signed-off-by: David Korczynski <[email protected]>

projects/gson/build.sh

@@ -32,7 +32,7 @@ ALL_JARS="gson.jar"
 BUILD_CLASSPATH=$(echo $ALL_JARS | xargs printf -- "$OUT/%s:"):$JAZZER_API_PATH
 RUNTIME_CLASSPATH=$(echo $ALL_JARS | xargs printf -- "\$this_dir/%s:"):.:\$this_dir
 
-for fuzzer in $(find $SRC -name 'Fuzz*.java'); do
+for fuzzer in $(find $SRC -maxdepth 1 -name 'Fuzz*.java'); do
   fuzzer_basename=$(basename -s .java $fuzzer)
   javac -cp $BUILD_CLASSPATH $fuzzer
   cp $SRC/$fuzzer_basename.class $OUT/

projects/junrar/build.sh

@@ -34,7 +34,7 @@ BUILD_CLASSPATH=$(echo $ALL_JARS | xargs printf -- "$OUT/%s:"):$JAZZER_API_PATH
 # All .jar and .class files lie in the same directory as the fuzzer at runtime.
 RUNTIME_CLASSPATH=$(echo $ALL_JARS | xargs printf -- "\$this_dir/%s:"):\$this_dir
 
-for fuzzer in $(find $SRC -name '*Fuzzer.java'); do
+for fuzzer in $(find $SRC -maxdepth 1 -name '*Fuzzer.java'); do
   fuzzer_basename=$(basename -s .java $fuzzer)
   javac -cp $BUILD_CLASSPATH $fuzzer
   cp $SRC/$fuzzer_basename.class $OUT/

projects/rome/build.sh

@@ -33,7 +33,7 @@ BUILD_CLASSPATH=$(echo $ALL_JARS | xargs printf -- "$OUT/%s:"):$JAZZER_API_PATH
 # All .jar and .class files lie in the same directory as the fuzzer at runtime.
 RUNTIME_CLASSPATH=$(echo $ALL_JARS | xargs printf -- "\$this_dir/%s:"):\$this_dir
 
-for fuzzer in $(find $SRC -name '*Fuzzer.java'); do
+for fuzzer in $(find $SRC -maxdepth 1 -name '*Fuzzer.java'); do
   fuzzer_basename=$(basename -s .java $fuzzer)
   javac -cp $BUILD_CLASSPATH $fuzzer
   cp $SRC/$fuzzer_basename.class $OUT/