diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index e5ab574ce8..b825df6281 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -33,3 +33,9 @@ RUN architecture=$(dpkg --print-architecture) && if [ "$architecture" = "arm64"
     && unzip awscli.zip \
     && ./aws/install \
     && rm -rf aws awscli.zip
+
+# Install Java
+RUN apt-get -y update && export DEBIAN_FRONTEND=noninteractive \
+    && apt-get -y install --no-install-recommends openjdk-17-jdk \
+    && apt-get -y clean \
+    && rm -rf /var/lib/apt/lists/*
\ No newline at end of file
diff --git a/apps/iris/src/service/sandbox/langConfig.go b/apps/iris/src/service/sandbox/langConfig.go
index 992779f4f4..2b5b90df95 100644
--- a/apps/iris/src/service/sandbox/langConfig.go
+++ b/apps/iris/src/service/sandbox/langConfig.go
@@ -123,7 +123,7 @@ func NewLangConfig(file file.FileManager, javaPolicyPath string) *langConfig {
 		CompileArgs:        "{srcPath} -d {exeDir} -encoding UTF8",
 		RunCommand:         "/usr/bin/java",
 		RunArgs: "-cp {exeDir} " +
-			"-XX:MaxRAM={maxMemory}k " +
+			"-XX:MaxRAM={maxMemory} " +
 			"-Djava.security.manager " +
 			"-Dfile.encoding=UTF-8 " +
 			"-Djava.security.policy==" +
@@ -263,9 +263,9 @@ func (l *langConfig) ToRunExecArgs(dir string, language Language, order int, lim
 	}
 
 	maxMemory := limit.Memory
-	if c.Language == JAVA {
-		maxMemory = -1
-	}
+	// if c.Language == JAVA {
+	// 	maxMemory = -1
+	// }
 
 	return ExecArgs{
 		ExePath:      strings.Replace(c.RunCommand, "{exePath}", exePath, 1),
@@ -277,11 +277,12 @@ func (l *langConfig) ToRunExecArgs(dir string, language Language, order int, lim
 		MaxOutputSize: 10 * 1024 * 1024,
 		// file에 쓰는거랑 stdout이랑 크게 차이 안남
 		// https://stackoverflow.com/questions/29700478/redirecting-of-stdout-in-bash-vs-writing-to-file-in-c-with-fprintf-speed
-		OutputPath:      outputPath,
-		ErrorPath:       errorPath, // byte buffer로
-		LogPath:         constants.RUN_LOG_PATH,
-		SeccompRuleName: c.SeccompRule,
-		Args:            argSlice,
+		OutputPath:           outputPath,
+		ErrorPath:            errorPath, // byte buffer로
+		LogPath:              constants.RUN_LOG_PATH,
+		SeccompRuleName:      c.SeccompRule,
+		MemoryLimitCheckOnly: c.MemoeryLimitCheckOnly,
+		Args:                 argSlice,
 	}, nil
 }