diff --git a/__tests__/cache.test.ts b/__tests__/cache.test.ts
new file mode 100644
index 00000000..fbc6dac0
--- /dev/null
+++ b/__tests__/cache.test.ts
@@ -0,0 +1,181 @@
+import { mkdtempSync } from 'fs';
+import { tmpdir } from 'os';
+import { join } from 'path';
+import { restore, save } from '../src/cache';
+import * as fs from 'fs';
+import * as os from 'os';
+import * as core from '@actions/core';
+import * as cache from '@actions/cache';
+
+describe('dependency cache', () => {
+  const ORIGINAL_RUNNER_OS = process.env['RUNNER_OS'];
+  const ORIGINAL_GITHUB_WORKSPACE = process.env['GITHUB_WORKSPACE'];
+  const ORIGINAL_CWD = process.cwd();
+  let workspace: string;
+  let spyInfo: jest.SpyInstance<void, Parameters<typeof core.info>>;
+  let spyWarning: jest.SpyInstance<void, Parameters<typeof core.warning>>;
+
+  beforeEach(() => {
+    workspace = mkdtempSync(join(tmpdir(), 'setup-java-cache-'));
+    switch (os.platform()) {
+      case 'darwin':
+        process.env['RUNNER_OS'] = 'macOS';
+        break;
+      case 'win32':
+        process.env['RUNNER_OS'] = 'Windows';
+        break;
+      case 'linux':
+        process.env['RUNNER_OS'] = 'Linux';
+        break;
+      default:
+        throw new Error(`unknown platform: ${os.platform()}`);
+    }
+    process.chdir(workspace);
+    // This hack is necessary because @actions/glob ignores files not in the GITHUB_WORKSPACE
+    // https://git.io/Jcxig
+    process.env['GITHUB_WORKSPACE'] = projectRoot(workspace);
+  });
+
+  beforeEach(() => {
+    spyInfo = jest.spyOn(core, 'info');
+    spyWarning = jest.spyOn(core, 'warning');
+  });
+
+  afterEach(() => {
+    process.chdir(ORIGINAL_CWD);
+    process.env['GITHUB_WORKSPACE'] = ORIGINAL_GITHUB_WORKSPACE;
+    process.env['RUNNER_OS'] = ORIGINAL_RUNNER_OS;
+  });
+
+  describe('restore', () => {
+    let spyCacheRestore: jest.SpyInstance<
+      ReturnType<typeof cache.restoreCache>,
+      Parameters<typeof cache.restoreCache>
+    >;
+
+    beforeEach(() => {
+      spyCacheRestore = jest
+        .spyOn(cache, 'restoreCache')
+        .mockImplementation((paths: string[], primaryKey: string) => Promise.resolve(undefined));
+    });
+
+    it('throws error if unsupported package manager specified', () => {
+      return expect(restore('ant')).rejects.toThrowError('unknown package manager specified: ant');
+    });
+
+    describe('for maven', () => {
+      it('warns if no pom.xml found', async () => {
+        await restore('maven');
+        expect(spyWarning).toBeCalledWith(
+          `No file in ${projectRoot(
+            workspace
+          )} matched to [**/pom.xml], make sure you have checked out the target repository`
+        );
+      });
+      it('downloads cache', async () => {
+        createFile(join(workspace, 'pom.xml'));
+
+        await restore('maven');
+        expect(spyCacheRestore).toBeCalled();
+        expect(spyWarning).not.toBeCalled();
+        expect(spyInfo).toBeCalledWith('maven cache is not found');
+      });
+    });
+    describe('for gradle', () => {
+      it('warns if no build.gradle found', async () => {
+        await restore('gradle');
+        expect(spyWarning).toBeCalledWith(
+          `No file in ${projectRoot(
+            workspace
+          )} matched to [**/*.gradle*,**/gradle-wrapper.properties], make sure you have checked out the target repository`
+        );
+      });
+      it('downloads cache based on build.gradle', async () => {
+        createFile(join(workspace, 'build.gradle'));
+
+        await restore('gradle');
+        expect(spyCacheRestore).toBeCalled();
+        expect(spyWarning).not.toBeCalled();
+        expect(spyInfo).toBeCalledWith('gradle cache is not found');
+      });
+      it('downloads cache based on build.gradle.kts', async () => {
+        createFile(join(workspace, 'build.gradle.kts'));
+
+        await restore('gradle');
+        expect(spyCacheRestore).toBeCalled();
+        expect(spyWarning).not.toBeCalled();
+        expect(spyInfo).toBeCalledWith('gradle cache is not found');
+      });
+    });
+  });
+  describe('save', () => {
+    let spyCacheSave: jest.SpyInstance<
+      ReturnType<typeof cache.saveCache>,
+      Parameters<typeof cache.saveCache>
+    >;
+
+    beforeEach(() => {
+      spyCacheSave = jest
+        .spyOn(cache, 'saveCache')
+        .mockImplementation((paths: string[], key: string) => Promise.resolve(0));
+    });
+
+    it('throws error if unsupported package manager specified', () => {
+      return expect(save('ant')).rejects.toThrowError('unknown package manager specified: ant');
+    });
+
+    describe('for maven', () => {
+      it('uploads cache even if no pom.xml found', async () => {
+        await save('maven');
+        expect(spyCacheSave).toBeCalled();
+        expect(spyWarning).not.toBeCalled();
+        expect(spyInfo).toBeCalledWith(expect.stringMatching(/^Cache saved with the key:.*/));
+      });
+      it('uploads cache', async () => {
+        createFile(join(workspace, 'pom.xml'));
+
+        await save('maven');
+        expect(spyCacheSave).toBeCalled();
+        expect(spyWarning).not.toBeCalled();
+        expect(spyInfo).toBeCalledWith(expect.stringMatching(/^Cache saved with the key:.*/));
+      });
+    });
+    describe('for gradle', () => {
+      it('uploads cache even if no build.gradle found', async () => {
+        await save('gradle');
+        expect(spyCacheSave).toBeCalled();
+        expect(spyWarning).not.toBeCalled();
+        expect(spyInfo).toBeCalledWith(expect.stringMatching(/^Cache saved with the key:.*/));
+      });
+      it('uploads cache based on build.gradle', async () => {
+        createFile(join(workspace, 'build.gradle'));
+
+        await save('gradle');
+        expect(spyCacheSave).toBeCalled();
+        expect(spyWarning).not.toBeCalled();
+        expect(spyInfo).toBeCalledWith(expect.stringMatching(/^Cache saved with the key:.*/));
+      });
+      it('uploads cache based on build.gradle.kts', async () => {
+        createFile(join(workspace, 'build.gradle.kts'));
+
+        await save('gradle');
+        expect(spyCacheSave).toBeCalled();
+        expect(spyWarning).not.toBeCalled();
+        expect(spyInfo).toBeCalledWith(expect.stringMatching(/^Cache saved with the key:.*/));
+      });
+    });
+  });
+});
+
+function createFile(path: string) {
+  core.info(`created a file at ${path}`);
+  fs.writeFileSync(path, '');
+}
+
+function projectRoot(workspace: string): string {
+  if (os.platform() === 'darwin') {
+    return `/private${workspace}`;
+  } else {
+    return workspace;
+  }
+}
diff --git a/package-lock.json b/package-lock.json
index 434d6be9..8c293542 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,6 +4,38 @@
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
+    "@actions/cache": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/@actions/cache/-/cache-1.0.7.tgz",
+      "integrity": "sha512-MY69kxuubqUFq84pFlu8m6Poxl5sR/xyhpC4JEvno7Yg9ASYdGizEmKgt0m8ovewpYKf15UAOcSC0hzS+DuosA==",
+      "requires": {
+        "@actions/core": "^1.2.6",
+        "@actions/exec": "^1.0.1",
+        "@actions/glob": "^0.1.0",
+        "@actions/http-client": "^1.0.9",
+        "@actions/io": "^1.0.1",
+        "@azure/ms-rest-js": "^2.0.7",
+        "@azure/storage-blob": "^12.1.2",
+        "semver": "^6.1.0",
+        "uuid": "^3.3.3"
+      },
+      "dependencies": {
+        "@actions/glob": {
+          "version": "0.1.2",
+          "resolved": "https://registry.npmjs.org/@actions/glob/-/glob-0.1.2.tgz",
+          "integrity": "sha512-SclLR7Ia5sEqjkJTPs7Sd86maMDw43p769YxBOxvPvEWuPEhpAnBsQfENOpXjFYMmhCqd127bmf+YdvJqVqR4A==",
+          "requires": {
+            "@actions/core": "^1.2.6",
+            "minimatch": "^3.0.4"
+          }
+        },
+        "semver": {
+          "version": "6.3.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
+          "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw=="
+        }
+      }
+    },
     "@actions/core": {
       "version": "1.2.6",
       "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.2.6.tgz",
@@ -17,6 +49,15 @@
         "@actions/io": "^1.0.1"
       }
     },
+    "@actions/glob": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/@actions/glob/-/glob-0.2.0.tgz",
+      "integrity": "sha512-mqE2a7I66kxcvsdwxs/filQwZsq25IfktMaviGfDB51v6Q3bvxnV7mFsZnvYtLhqGZbPxwBnH8AD3UYaOWb//w==",
+      "requires": {
+        "@actions/core": "^1.2.6",
+        "minimatch": "^3.0.4"
+      }
+    },
     "@actions/http-client": {
       "version": "1.0.9",
       "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-1.0.9.tgz",
@@ -50,6 +91,205 @@
         }
       }
     },
+    "@azure/abort-controller": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/@azure/abort-controller/-/abort-controller-1.0.4.tgz",
+      "integrity": "sha512-lNUmDRVGpanCsiUN3NWxFTdwmdFI53xwhkTFfHDGTYk46ca7Ind3nanJc+U6Zj9Tv+9nTCWRBscWEW1DyKOpTw==",
+      "requires": {
+        "tslib": "^2.0.0"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "2.3.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.3.0.tgz",
+          "integrity": "sha512-N82ooyxVNm6h1riLCoyS9e3fuJ3AMG2zIZs2Gd1ATcSFjSA23Q0fzjjZeh0jbJvWVDZ0cJT8yaNNaaXHzueNjg=="
+        }
+      }
+    },
+    "@azure/core-asynciterator-polyfill": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/@azure/core-asynciterator-polyfill/-/core-asynciterator-polyfill-1.0.0.tgz",
+      "integrity": "sha512-kmv8CGrPfN9SwMwrkiBK9VTQYxdFQEGe0BmQk+M8io56P9KNzpAxcWE/1fxJj7uouwN4kXF0BHW8DNlgx+wtCg=="
+    },
+    "@azure/core-auth": {
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/@azure/core-auth/-/core-auth-1.3.2.tgz",
+      "integrity": "sha512-7CU6DmCHIZp5ZPiZ9r3J17lTKMmYsm/zGvNkjArQwPkrLlZ1TZ+EUYfGgh2X31OLMVAQCTJZW4cXHJi02EbJnA==",
+      "requires": {
+        "@azure/abort-controller": "^1.0.0",
+        "tslib": "^2.2.0"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "2.3.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.3.0.tgz",
+          "integrity": "sha512-N82ooyxVNm6h1riLCoyS9e3fuJ3AMG2zIZs2Gd1ATcSFjSA23Q0fzjjZeh0jbJvWVDZ0cJT8yaNNaaXHzueNjg=="
+        }
+      }
+    },
+    "@azure/core-http": {
+      "version": "1.2.6",
+      "resolved": "https://registry.npmjs.org/@azure/core-http/-/core-http-1.2.6.tgz",
+      "integrity": "sha512-odtH7UMKtekc5YQ86xg9GlVHNXR6pq2JgJ5FBo7/jbOjNGdBqcrIVrZx2bevXVJz/uUTSx6vUf62gzTXTfqYSQ==",
+      "requires": {
+        "@azure/abort-controller": "^1.0.0",
+        "@azure/core-asynciterator-polyfill": "^1.0.0",
+        "@azure/core-auth": "^1.3.0",
+        "@azure/core-tracing": "1.0.0-preview.11",
+        "@azure/logger": "^1.0.0",
+        "@types/node-fetch": "^2.5.0",
+        "@types/tunnel": "^0.0.1",
+        "form-data": "^3.0.0",
+        "node-fetch": "^2.6.0",
+        "process": "^0.11.10",
+        "tough-cookie": "^4.0.0",
+        "tslib": "^2.2.0",
+        "tunnel": "^0.0.6",
+        "uuid": "^8.3.0",
+        "xml2js": "^0.4.19"
+      },
+      "dependencies": {
+        "form-data": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/form-data/-/form-data-3.0.1.tgz",
+          "integrity": "sha512-RHkBKtLWUVwd7SqRIvCZMEvAMoGUp0XU+seQiZejj0COz3RI3hWP4sCv3gZWWLjJTd7rGwcsF5eKZGii0r/hbg==",
+          "requires": {
+            "asynckit": "^0.4.0",
+            "combined-stream": "^1.0.8",
+            "mime-types": "^2.1.12"
+          }
+        },
+        "tough-cookie": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-4.0.0.tgz",
+          "integrity": "sha512-tHdtEpQCMrc1YLrMaqXXcj6AxhYi/xgit6mZu1+EDWUn+qhUf8wMQoFIy9NXuq23zAwtcB0t/MjACGR18pcRbg==",
+          "requires": {
+            "psl": "^1.1.33",
+            "punycode": "^2.1.1",
+            "universalify": "^0.1.2"
+          }
+        },
+        "tslib": {
+          "version": "2.3.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.3.0.tgz",
+          "integrity": "sha512-N82ooyxVNm6h1riLCoyS9e3fuJ3AMG2zIZs2Gd1ATcSFjSA23Q0fzjjZeh0jbJvWVDZ0cJT8yaNNaaXHzueNjg=="
+        },
+        "uuid": {
+          "version": "8.3.2",
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+          "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg=="
+        }
+      }
+    },
+    "@azure/core-lro": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/@azure/core-lro/-/core-lro-1.0.5.tgz",
+      "integrity": "sha512-0EFCFZxARrIoLWMIRt4vuqconRVIO2Iin7nFBfJiYCCbKp5eEmxutNk8uqudPmG0XFl5YqlVh68/al/vbE5OOg==",
+      "requires": {
+        "@azure/abort-controller": "^1.0.0",
+        "@azure/core-http": "^1.2.0",
+        "@azure/core-tracing": "1.0.0-preview.11",
+        "events": "^3.0.0",
+        "tslib": "^2.0.0"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "2.3.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.3.0.tgz",
+          "integrity": "sha512-N82ooyxVNm6h1riLCoyS9e3fuJ3AMG2zIZs2Gd1ATcSFjSA23Q0fzjjZeh0jbJvWVDZ0cJT8yaNNaaXHzueNjg=="
+        }
+      }
+    },
+    "@azure/core-paging": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/@azure/core-paging/-/core-paging-1.1.3.tgz",
+      "integrity": "sha512-his7Ah40ThEYORSpIAwuh6B8wkGwO/zG7gqVtmSE4WAJ46e36zUDXTKReUCLBDc6HmjjApQQxxcRFy5FruG79A==",
+      "requires": {
+        "@azure/core-asynciterator-polyfill": "^1.0.0"
+      }
+    },
+    "@azure/core-tracing": {
+      "version": "1.0.0-preview.11",
+      "resolved": "https://registry.npmjs.org/@azure/core-tracing/-/core-tracing-1.0.0-preview.11.tgz",
+      "integrity": "sha512-frF0pJc9HTmKncVokhBxCqipjbql02DThQ1ZJ9wLi7SDMLdPAFyDI5xZNzX5guLz+/DtPkY+SGK2li9FIXqshQ==",
+      "requires": {
+        "@opencensus/web-types": "0.0.7",
+        "@opentelemetry/api": "1.0.0-rc.0",
+        "tslib": "^2.0.0"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "2.3.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.3.0.tgz",
+          "integrity": "sha512-N82ooyxVNm6h1riLCoyS9e3fuJ3AMG2zIZs2Gd1ATcSFjSA23Q0fzjjZeh0jbJvWVDZ0cJT8yaNNaaXHzueNjg=="
+        }
+      }
+    },
+    "@azure/logger": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/@azure/logger/-/logger-1.0.2.tgz",
+      "integrity": "sha512-YZNjNV0vL3nN2nedmcjQBcpCTo3oqceXmgiQtEm6fLpucjRZyQKAQruhCmCpRlB1iykqKJJ/Y8CDmT5rIE6IJw==",
+      "requires": {
+        "tslib": "^2.0.0"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "2.3.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.3.0.tgz",
+          "integrity": "sha512-N82ooyxVNm6h1riLCoyS9e3fuJ3AMG2zIZs2Gd1ATcSFjSA23Q0fzjjZeh0jbJvWVDZ0cJT8yaNNaaXHzueNjg=="
+        }
+      }
+    },
+    "@azure/ms-rest-js": {
+      "version": "2.5.2",
+      "resolved": "https://registry.npmjs.org/@azure/ms-rest-js/-/ms-rest-js-2.5.2.tgz",
+      "integrity": "sha512-9nCuuoYwHZEZw1t0MVtENH+c1k2R4maYAlBBDSZhZu6bEucyfYUUigNXXKjt2cFBt4sO+sTzi0uI0f/fiPFr+Q==",
+      "requires": {
+        "@azure/core-auth": "^1.1.4",
+        "abort-controller": "^3.0.0",
+        "form-data": "^2.5.0",
+        "node-fetch": "^2.6.0",
+        "tough-cookie": "^3.0.1",
+        "tslib": "^1.10.0",
+        "tunnel": "0.0.6",
+        "uuid": "^3.3.2",
+        "xml2js": "^0.4.19"
+      },
+      "dependencies": {
+        "form-data": {
+          "version": "2.5.1",
+          "resolved": "https://registry.npmjs.org/form-data/-/form-data-2.5.1.tgz",
+          "integrity": "sha512-m21N3WOmEEURgk6B9GLOE4RuWOFf28Lhh9qGYeNlGq4VDXUlJy2th2slBNU8Gp8EzloYZOibZJ7t5ecIrFSjVA==",
+          "requires": {
+            "asynckit": "^0.4.0",
+            "combined-stream": "^1.0.6",
+            "mime-types": "^2.1.12"
+          }
+        }
+      }
+    },
+    "@azure/storage-blob": {
+      "version": "12.6.0",
+      "resolved": "https://registry.npmjs.org/@azure/storage-blob/-/storage-blob-12.6.0.tgz",
+      "integrity": "sha512-cAzsae+5ZdhugQfIT7o5SlVyF2Sc+HygZdPO41ZYdXklfGUyEt+5K4PyM5HQDc0MTVt6x7+waXcaAXT2eF9E6A==",
+      "requires": {
+        "@azure/abort-controller": "^1.0.0",
+        "@azure/core-http": "^1.2.0",
+        "@azure/core-lro": "^1.0.2",
+        "@azure/core-paging": "^1.1.1",
+        "@azure/core-tracing": "1.0.0-preview.11",
+        "@azure/logger": "^1.0.0",
+        "events": "^3.0.0",
+        "tslib": "^2.0.0"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "2.3.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.3.0.tgz",
+          "integrity": "sha512-N82ooyxVNm6h1riLCoyS9e3fuJ3AMG2zIZs2Gd1ATcSFjSA23Q0fzjjZeh0jbJvWVDZ0cJT8yaNNaaXHzueNjg=="
+        }
+      }
+    },
     "@babel/code-frame": {
       "version": "7.12.13",
       "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.12.13.tgz",
@@ -740,6 +980,16 @@
       "resolved": "https://registry.npmjs.org/@oozcitak/util/-/util-8.3.8.tgz",
       "integrity": "sha512-T8TbSnGsxo6TDBJx/Sgv/BlVJL3tshxZP7Aq5R1mSnM5OcHY2dQaxLMu2+E8u3gN0MLOzdjurqN4ZRVuzQycOQ=="
     },
+    "@opencensus/web-types": {
+      "version": "0.0.7",
+      "resolved": "https://registry.npmjs.org/@opencensus/web-types/-/web-types-0.0.7.tgz",
+      "integrity": "sha512-xB+w7ZDAu3YBzqH44rCmG9/RlrOmFuDPt/bpf17eJr8eZSrLt7nc7LnWdxM9Mmoj/YKMHpxRg28txu3TcpiL+g=="
+    },
+    "@opentelemetry/api": {
+      "version": "1.0.0-rc.0",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/api/-/api-1.0.0-rc.0.tgz",
+      "integrity": "sha512-iXKByCMfrlO5S6Oh97BuM56tM2cIBB0XsL/vWF/AtJrJEKx4MC/Xdu0xDsGXMGcNWpqF7ujMsjjnp0+UHBwnDQ=="
+    },
     "@sinonjs/commons": {
       "version": "1.8.2",
       "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-1.8.2.tgz",
@@ -845,8 +1095,28 @@
     "@types/node": {
       "version": "12.20.4",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-12.20.4.tgz",
-      "integrity": "sha512-xRCgeE0Q4pT5UZ189TJ3SpYuX/QGl6QIAOAIeDSbAVAd2gX1NxSZup4jNVK7cxIeP8KDSbJgcckun495isP1jQ==",
-      "dev": true
+      "integrity": "sha512-xRCgeE0Q4pT5UZ189TJ3SpYuX/QGl6QIAOAIeDSbAVAd2gX1NxSZup4jNVK7cxIeP8KDSbJgcckun495isP1jQ=="
+    },
+    "@types/node-fetch": {
+      "version": "2.5.11",
+      "resolved": "https://registry.npmjs.org/@types/node-fetch/-/node-fetch-2.5.11.tgz",
+      "integrity": "sha512-2upCKaqVZETDRb8A2VTaRymqFBEgH8u6yr96b/u3+1uQEPDRo3mJLEiPk7vdXBHRtjwkjqzFYMJXrt0Z9QsYjQ==",
+      "requires": {
+        "@types/node": "*",
+        "form-data": "^3.0.0"
+      },
+      "dependencies": {
+        "form-data": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/form-data/-/form-data-3.0.1.tgz",
+          "integrity": "sha512-RHkBKtLWUVwd7SqRIvCZMEvAMoGUp0XU+seQiZejj0COz3RI3hWP4sCv3gZWWLjJTd7rGwcsF5eKZGii0r/hbg==",
+          "requires": {
+            "asynckit": "^0.4.0",
+            "combined-stream": "^1.0.8",
+            "mime-types": "^2.1.12"
+          }
+        }
+      }
     },
     "@types/normalize-package-data": {
       "version": "2.4.0",
@@ -872,6 +1142,14 @@
       "integrity": "sha512-RJJrrySY7A8havqpGObOB4W92QXKJo63/jFLLgpvOtsGUqbQZ9Sbgl35KMm1DjC6j7AvmmU2bIno+3IyEaemaw==",
       "dev": true
     },
+    "@types/tunnel": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/@types/tunnel/-/tunnel-0.0.1.tgz",
+      "integrity": "sha512-AOqu6bQu5MSWwYvehMXLukFHnupHrpZ8nvgae5Ggie9UwzDR1CCwoXgSSWNZJuyOlCdfdsWMA5F2LlmvyoTv8A==",
+      "requires": {
+        "@types/node": "*"
+      }
+    },
     "@types/yargs": {
       "version": "15.0.13",
       "resolved": "https://registry.npmjs.org/@types/yargs/-/yargs-15.0.13.tgz",
@@ -899,6 +1177,14 @@
       "integrity": "sha512-9IK9EadsbHo6jLWIpxpR6pL0sazTXV6+SQv25ZB+F7Bj9mJNaOc4nCRabwd5M/JwmUa8idz6Eci6eKfJryPs6Q==",
       "dev": true
     },
+    "abort-controller": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/abort-controller/-/abort-controller-3.0.0.tgz",
+      "integrity": "sha512-h8lQ8tacZYnR3vNQTgibj+tODHI5/+l06Au2Pcriv/Gmet0eaj4TwWH41sO9wnHDiQsEj19q0drzdWdeAHtweg==",
+      "requires": {
+        "event-target-shim": "^5.0.0"
+      }
+    },
     "acorn": {
       "version": "7.4.1",
       "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.4.1.tgz",
@@ -1031,8 +1317,7 @@
     "asynckit": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
-      "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k=",
-      "dev": true
+      "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k="
     },
     "atob": {
       "version": "2.1.2",
@@ -1126,8 +1411,7 @@
     "balanced-match": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
-      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
-      "dev": true
+      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c="
     },
     "base": {
       "version": "0.11.2",
@@ -1197,7 +1481,6 @@
       "version": "1.1.11",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
       "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
-      "dev": true,
       "requires": {
         "balanced-match": "^1.0.0",
         "concat-map": "0.0.1"
@@ -1414,7 +1697,6 @@
       "version": "1.0.8",
       "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
       "integrity": "sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==",
-      "dev": true,
       "requires": {
         "delayed-stream": "~1.0.0"
       }
@@ -1428,8 +1710,7 @@
     "concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
-      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
-      "dev": true
+      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
     },
     "convert-source-map": {
       "version": "1.7.0",
@@ -1605,8 +1886,7 @@
     "delayed-stream": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
-      "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk=",
-      "dev": true
+      "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk="
     },
     "detect-newline": {
       "version": "3.1.0",
@@ -1725,6 +2005,16 @@
       "integrity": "sha512-kVscqXk4OCp68SZ0dkgEKVi6/8ij300KBWTJq32P/dYeWTSwK41WyTxalN1eRmA5Z9UU/LX9D7FWSmV9SAYx6g==",
       "dev": true
     },
+    "event-target-shim": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/event-target-shim/-/event-target-shim-5.0.1.tgz",
+      "integrity": "sha512-i/2XbnSz/uxRCU6+NdVJgKWDTM427+MqYbkQzD321DuCQJUqOuJKIA0IM2+W2xtYHdKOmZ4dR6fExsd4SXL+WQ=="
+    },
+    "events": {
+      "version": "3.3.0",
+      "resolved": "https://registry.npmjs.org/events/-/events-3.3.0.tgz",
+      "integrity": "sha512-mQw+2fkQbALzQ7V0MY0IqdnXNOeTtP4r0lN9z7AAawCXgqea7bDii20AYrIBrFd/Hx0M2Ocz6S111CaFkUcb0Q=="
+    },
     "exec-sh": {
       "version": "0.3.4",
       "resolved": "https://registry.npmjs.org/exec-sh/-/exec-sh-0.3.4.tgz",
@@ -2251,8 +2541,7 @@
     "ip-regex": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/ip-regex/-/ip-regex-2.1.0.tgz",
-      "integrity": "sha1-+ni/XS5pE8kRzp+BnuUUa7bYROk=",
-      "dev": true
+      "integrity": "sha1-+ni/XS5pE8kRzp+BnuUUa7bYROk="
     },
     "is-accessor-descriptor": {
       "version": "0.1.6",
@@ -3282,14 +3571,12 @@
     "mime-db": {
       "version": "1.46.0",
       "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.46.0.tgz",
-      "integrity": "sha512-svXaP8UQRZ5K7or+ZmfNhg2xX3yKDMUzqadsSqi4NCH/KomcH75MAMYAGVlvXn4+b/xOPhS3I2uHKRUzvjY7BQ==",
-      "dev": true
+      "integrity": "sha512-svXaP8UQRZ5K7or+ZmfNhg2xX3yKDMUzqadsSqi4NCH/KomcH75MAMYAGVlvXn4+b/xOPhS3I2uHKRUzvjY7BQ=="
     },
     "mime-types": {
       "version": "2.1.29",
       "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.29.tgz",
       "integrity": "sha512-Y/jMt/S5sR9OaqteJtslsFZKWOIIqMACsJSiHghlCAyhf7jfVYjKBmLiX8OgpWeW+fjJ2b+Az69aPFPkUOY6xQ==",
-      "dev": true,
       "requires": {
         "mime-db": "1.46.0"
       }
@@ -3304,7 +3591,6 @@
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
       "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
-      "dev": true,
       "requires": {
         "brace-expansion": "^1.1.7"
       }
@@ -3379,6 +3665,11 @@
       "integrity": "sha512-1nh45deeb5olNY7eX82BkPO7SSxR5SSYJiPTrTdFUVYwAl8CKMA5N9PjTYkHiRjisVcxcQ1HXdLhx2qxxJzLNQ==",
       "dev": true
     },
+    "node-fetch": {
+      "version": "2.6.1",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.1.tgz",
+      "integrity": "sha512-V4aYg89jEoVRxRb2fJdAg8FHvI7cEyYdVAh94HH0UIK8oJxUfkjlDQN9RbMx+bEjP7+ggMiFRprSti032Oipxw=="
+    },
     "node-int64": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/node-int64/-/node-int64-0.4.0.tgz",
@@ -3703,6 +3994,11 @@
         "react-is": "^17.0.1"
       }
     },
+    "process": {
+      "version": "0.11.10",
+      "resolved": "https://registry.npmjs.org/process/-/process-0.11.10.tgz",
+      "integrity": "sha1-czIwDoQBYb2j5podHZGn1LwW8YI="
+    },
     "prompts": {
       "version": "2.4.0",
       "resolved": "https://registry.npmjs.org/prompts/-/prompts-2.4.0.tgz",
@@ -3716,8 +4012,7 @@
     "psl": {
       "version": "1.8.0",
       "resolved": "https://registry.npmjs.org/psl/-/psl-1.8.0.tgz",
-      "integrity": "sha512-RIdOzyoavK+hA18OGGWDqUTsCLhtA7IcZ/6NCs4fFJaHBDab+pDDmDIByWFRQJq2Cd7r1OoQxBGKOaztq+hjIQ==",
-      "dev": true
+      "integrity": "sha512-RIdOzyoavK+hA18OGGWDqUTsCLhtA7IcZ/6NCs4fFJaHBDab+pDDmDIByWFRQJq2Cd7r1OoQxBGKOaztq+hjIQ=="
     },
     "pump": {
       "version": "3.0.0",
@@ -3732,8 +4027,7 @@
     "punycode": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.1.1.tgz",
-      "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A==",
-      "dev": true
+      "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A=="
     },
     "qs": {
       "version": "6.5.2",
@@ -4104,6 +4398,11 @@
         }
       }
     },
+    "sax": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/sax/-/sax-1.2.4.tgz",
+      "integrity": "sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw=="
+    },
     "saxes": {
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/saxes/-/saxes-5.0.1.tgz",
@@ -4617,7 +4916,6 @@
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-3.0.1.tgz",
       "integrity": "sha512-yQyJ0u4pZsv9D4clxO69OEjLWYw+jbgspjTue4lTQZLfV0c5l1VmK2y1JK8E9ahdpltPOaAThPcp5nKPUgSnsg==",
-      "dev": true,
       "requires": {
         "ip-regex": "^2.1.0",
         "psl": "^1.1.28",
@@ -4659,6 +4957,11 @@
         }
       }
     },
+    "tslib": {
+      "version": "1.14.1",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",
+      "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg=="
+    },
     "tunnel": {
       "version": "0.0.6",
       "resolved": "https://registry.npmjs.org/tunnel/-/tunnel-0.0.6.tgz",
@@ -4727,6 +5030,11 @@
         "set-value": "^2.0.1"
       }
     },
+    "universalify": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
+      "integrity": "sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg=="
+    },
     "unset-value": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unset-value/-/unset-value-1.0.0.tgz",
@@ -4954,6 +5262,20 @@
       "integrity": "sha512-A5CUptxDsvxKJEU3yO6DuWBSJz/qizqzJKOMIfUJHETbBw/sFaDxgd6fxm1ewUaM0jZ444Fc5vC5ROYurg/4Pw==",
       "dev": true
     },
+    "xml2js": {
+      "version": "0.4.23",
+      "resolved": "https://registry.npmjs.org/xml2js/-/xml2js-0.4.23.tgz",
+      "integrity": "sha512-ySPiMjM0+pLDftHgXY4By0uswI3SPKLDw/i3UXbnO8M/p28zqexCUoPmQFrYD+/1BzhGJSs2i1ERWKJAtiLrug==",
+      "requires": {
+        "sax": ">=0.6.0",
+        "xmlbuilder": "~11.0.0"
+      }
+    },
+    "xmlbuilder": {
+      "version": "11.0.1",
+      "resolved": "https://registry.npmjs.org/xmlbuilder/-/xmlbuilder-11.0.1.tgz",
+      "integrity": "sha512-fDlsI/kFEx7gLvbecc0/ohLG50fugQp8ryHzMTuW9vSa1GJ0XYWKnhsUx7oie3G98+r56aTQIUB4kht42R3JvA=="
+    },
     "xmlbuilder2": {
       "version": "2.4.0",
       "resolved": "https://registry.npmjs.org/xmlbuilder2/-/xmlbuilder2-2.4.0.tgz",
diff --git a/package.json b/package.json
index 00ddd557..c14f855c 100644
--- a/package.json
+++ b/package.json
@@ -24,8 +24,10 @@
   "author": "GitHub",
   "license": "MIT",
   "dependencies": {
+    "@actions/cache": "^1.0.7",
     "@actions/core": "^1.2.6",
     "@actions/exec": "^1.0.4",
+    "@actions/glob": "^0.2.0",
     "@actions/http-client": "^1.0.9",
     "@actions/io": "^1.0.2",
     "@actions/tool-cache": "^1.6.1",
diff --git a/src/cache.ts b/src/cache.ts
new file mode 100644
index 00000000..c7cc4ccd
--- /dev/null
+++ b/src/cache.ts
@@ -0,0 +1,110 @@
+/**
+ * @fileoverview this file provides methods handling dependency cache
+ */
+
+import { join } from 'path';
+import os from 'os';
+import * as cache from '@actions/cache';
+import * as core from '@actions/core';
+import * as glob from '@actions/glob';
+
+const STATE_CACHE_PRIMARY_KEY = 'cache-primary-key';
+const CACHE_MATCHED_KEY = 'cache-matched-key';
+
+interface PackageManager {
+  id: 'maven' | 'gradle';
+  /**
+   * Paths of the file that specify the files to cache.
+   */
+  path: string[];
+  pattern: string[];
+}
+const supportedPackageManager: PackageManager[] = [
+  {
+    id: 'maven',
+    path: [join(os.homedir(), '.m2', 'repository')],
+    // https://github.com/actions/cache/blob/0638051e9af2c23d10bb70fa9beffcad6cff9ce3/examples.md#java---maven
+    pattern: ['**/pom.xml']
+  },
+  {
+    id: 'gradle',
+    path: [join(os.homedir(), '.gradle', 'caches'), join(os.homedir(), '.gradle', 'wrapper')],
+    // https://github.com/actions/cache/blob/0638051e9af2c23d10bb70fa9beffcad6cff9ce3/examples.md#java---gradle
+    pattern: ['**/*.gradle*', '**/gradle-wrapper.properties']
+  }
+];
+
+function findPackageManager(id: string): PackageManager {
+  const packageManager = supportedPackageManager.find(packageManager => packageManager.id === id);
+  if (packageManager === undefined) {
+    throw new Error(`unknown package manager specified: ${id}`);
+  }
+  return packageManager;
+}
+
+/**
+ * A function that generates a cache key to use.
+ * Format of the generated key will be "${{ platform }}-${{ id }}-${{ fileHash }}"".
+ * If there is no file matched to {@link PackageManager.path}, the generated key ends with a dash (-).
+ * @see {@link https://docs.github.com/en/actions/guides/caching-dependencies-to-speed-up-workflows#matching-a-cache-key|spec of cache key}
+ */
+async function computeCacheKey(packageManager: PackageManager) {
+  return `${process.env['RUNNER_OS']}-${packageManager.id}-${await glob.hashFiles(
+    packageManager.pattern.join('\n')
+  )}`;
+}
+
+/**
+ * Restore the dependency cache
+ * @param id ID of the package manager, should be "maven" or "gradle"
+ */
+export async function restore(id: string) {
+  const packageManager = findPackageManager(id);
+  const primaryKey = await computeCacheKey(packageManager);
+
+  core.debug(`primary key is ${primaryKey}`);
+  core.saveState(STATE_CACHE_PRIMARY_KEY, primaryKey);
+  if (primaryKey.endsWith('-')) {
+    core.warning(
+      `No file in ${process.cwd()} matched to [${
+        packageManager.pattern
+      }], make sure you have checked out the target repository`
+    );
+    return;
+  }
+
+  const matchedKey = await cache.restoreCache(packageManager.path, primaryKey, [
+    `${process.env['RUNNER_OS']}-${id}`
+  ]);
+  if (matchedKey) {
+    core.saveState(CACHE_MATCHED_KEY, matchedKey);
+    core.info(`Cache restored from key: ${matchedKey}`);
+  } else {
+    core.info(`${packageManager.id} cache is not found`);
+  }
+}
+
+/**
+ * Save the dependency cache
+ * @param id ID of the package manager, should be "maven" or "gradle"
+ */
+export async function save(id: string) {
+  const packageManager = findPackageManager(id);
+  const primaryKey = await computeCacheKey(packageManager);
+  const matchedKey = core.getState(CACHE_MATCHED_KEY);
+  if (matchedKey === primaryKey) {
+    // no change in target directories
+    core.info(`Cache hit occurred on the primary key ${primaryKey}, not saving cache.`);
+    return;
+  }
+  try {
+    await cache.saveCache(packageManager.path, primaryKey);
+    core.info(`Cache saved with the key: ${primaryKey}`);
+  } catch (error) {
+    if (error.name === cache.ReserveCacheError.name) {
+      core.info(error.message);
+    } else {
+      throw error;
+    }
+  }
+}