Add in the config for fuzzing

Not 100% sure this actually works, but it's a branch so we'll see.

Signed-off-by: Justin Abrahms <justin@abrah.ms>

.clusterfuzzlite/Dockerfile

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+FROM gcr.io/oss-fuzz-base/base-builder-jvm:v1
+RUN apt-get update && apt-get install -y make autoconf automake libtool
+COPY . $SRC/java-sdk
+WORKDIR java-sdk
+COPY .clusterfuzzlite/build.sh $SRC/

.clusterfuzzlite/build.sh

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+#!/bin/bash -eu
+# Copyright 2021 Google Inc.
+#
+# 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.
+#
+################################################################################
+
+
+#mvn package
+
+#mvn org.apache.maven.plugins:maven-dependency-plugin:3.3.0:get -Dartifact=com.fasterxml.jackson.core:jackson-databind:2.13.2.2
+mvn package
+
+CURRENT_VERSION=$(mvn org.apache.maven.plugins:maven-help-plugin:3.2.0:evaluate \
+-Dexpression=project.version -q -DforceStdout)
+ls -la .
+pwd
+env
+cp "target/clusterfuzzlite-demo-$CURRENT_VERSION-jar-with-dependencies.jar" $OUT/clusterfuzzlite-demo.jar
+
+PROJECT_JARS="clusterfuzzlite-demo.jar"
+
+
+# All .jar and .class files lie in the same directory as the fuzzer at runtime.
+BUILD_CLASSPATH=$(echo $PROJECT_JARS | xargs printf -- "$OUT/%s:"):$JAZZER_API_PATH
+
+# All class files lie in the same directory as the fuzzer at runtime.
+RUNTIME_CLASSPATH=$(echo $PROJECT_JARS | xargs printf -- "\$this_dir/%s:"):\$this_dir
+
+cp "$SRC/jazzer_agent_deploy.jar" "$OUT/jazzer_agent_deploy.jar"
+
+for fuzzer in $(find $SRC -name '*Fuzzer.java' -or -name '*FuzzerNative.java'); do
+  fuzzer_basename=$(basename -s .java $fuzzer)
+  javac -cp $BUILD_CLASSPATH $fuzzer
+  cp $PWD/$fuzzer_basename.class $OUT/
+
+  driver=jazzer_driver
+
+  cp default.options $OUT/"$fuzzer_basename".options
+  # Create execution wrapper.
+  echo "#!/bin/sh
+# LLVMFuzzerTestOneInput for fuzzer detection.
+this_dir=\$(dirname \"\$0\")
+LD_LIBRARY_PATH=\"$JVM_LD_LIBRARY_PATH\":\$this_dir/native \
+ASAN_OPTIONS=\$ASAN_OPTIONS:symbolize=1:external_symbolizer_path=\$this_dir/llvm-symbolizer:detect_leaks=0 \
+\$this_dir/$driver --agent_path=\$this_dir/jazzer_agent_deploy.jar \
+--cp=$RUNTIME_CLASSPATH \
+--target_class=$fuzzer_basename \
+--jvm_args=\"-Xmx2048m\" \
+\$@ -use_value_profile=1" > $OUT/$fuzzer_basename
+  chmod +x $OUT/$fuzzer_basename
+done
+

.clusterfuzzlite/project.yaml

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+language: jvm