diff --git a/ognibuild/buildlog.py b/ognibuild/buildlog.py
index bb596b8..16ed253 100644
--- a/ognibuild/buildlog.py
+++ b/ognibuild/buildlog.py
@@ -34,6 +34,7 @@ from buildlog_consultant.common import (
     MissingPerlModule,
     MissingXmlEntity,
     MissingJDKFile,
+    MissingJDK,
     MissingNodeModule,
     MissingPhpClass,
     MissingRubyGem,
@@ -75,6 +76,7 @@ from .requirements import (
     MavenArtifactRequirement,
     GnomeCommonRequirement,
     JDKFileRequirement,
+    JDKRequirement,
     PerlModuleRequirement,
     PerlFileRequirement,
     AutoconfMacroRequirement,
@@ -129,6 +131,8 @@ def problem_to_upstream_requirement(problem):  # noqa: C901
         return GnomeCommonRequirement()
     elif isinstance(problem, MissingJDKFile):
         return JDKFileRequirement(problem.jdk_path, problem.filename)
+    elif isinstance(problem, MissingJDK):
+        return JDKRequirement()
     elif isinstance(problem, MissingGnomeCommonDependency):
         if problem.package == "glib-gettext":
             return BinaryRequirement("glib-gettextize")
diff --git a/ognibuild/buildsystem.py b/ognibuild/buildsystem.py
index 6804b20..4611595 100644
--- a/ognibuild/buildsystem.py
+++ b/ognibuild/buildsystem.py
@@ -262,20 +262,51 @@ class Gradle(BuildSystem):
 
     name = "gradle"
 
-    def __init__(self, path):
+    def __init__(self, path, executable="gradle"):
         self.path = path
+        self.executable = executable
 
     def __repr__(self):
         return "%s(%r)" % (type(self).__name__, self.path)
 
+    @classmethod
+    def exists(cls, path):
+        return (
+            os.path.exists(os.path.join(path, "build.gradle")) or
+            os.path.exists(os.path.join(path, "build.gradle.kts")))
+
+    @classmethod
+    def from_path(cls, path):
+        if os.path.exists(os.path.join(path, "gradlew")):
+            return cls(path, "./gradlew")
+        return cls(path)
+
+    def setup(self, resolver):
+        if not self.executable.startswith('./'):
+            resolver.install([BinaryRequirement(self.executable)])
+
     def clean(self, session, resolver, fixers):
-        run_with_build_fixers(session, ["gradle", "clean"], fixers)
+        self.setup(resolver)
+        run_with_build_fixers(session, [self.executable, "clean"], fixers)
 
     def build(self, session, resolver, fixers):
-        run_with_build_fixers(session, ["gradle", "build"], fixers)
+        self.setup(resolver)
+        run_with_build_fixers(session, [self.executable, "build"], fixers)
 
     def test(self, session, resolver, fixers):
-        run_with_build_fixers(session, ["gradle", "test"], fixers)
+        self.setup(resolver)
+        run_with_build_fixers(session, [self.executable, "test"], fixers)
+
+    def dist(self, session, resolver, fixers, quiet=False):
+        self.setup(resolver)
+        run_with_build_fixers(session, [self.executable, "distTar"], fixers)
+
+    def install(self, session, resolver, fixers, install_target):
+        raise NotImplementedError
+        self.setup(resolver)
+        # TODO(jelmer): installDist just creates files under build/install/...
+        run_with_build_fixers(
+            session, [self.executable, "installDist"], fixers)
 
 
 class Meson(BuildSystem):
@@ -733,9 +764,9 @@ def detect_buildsystems(path, trust_package=False):  # noqa: C901
         logging.debug("Found Cargo.toml, assuming rust cargo package.")
         yield Cargo("Cargo.toml")
 
-    if os.path.exists(os.path.join(path, "build.gradle")):
+    if Gradle.exists(path):
         logging.debug("Found build.gradle, assuming gradle package.")
-        yield Gradle("build.gradle")
+        yield Gradle.from_path(path)
 
     if os.path.exists(os.path.join(path, "meson.build")):
         logging.debug("Found meson.build, assuming meson package.")
diff --git a/ognibuild/fix_build.py b/ognibuild/fix_build.py
index d7dca7f..abbebc1 100644
--- a/ognibuild/fix_build.py
+++ b/ognibuild/fix_build.py
@@ -66,9 +66,10 @@ def run_with_build_fixers(session: Session, args: List[str], fixers: List[BuildF
     logging.info("Running %r", args)
     fixed_errors = []
     while True:
-        retcode, lines = run_with_tee(session, args)
+        retcode, contents = run_with_tee(session, args)
         if retcode == 0:
             return
+        lines = ''.join(contents).splitlines(True)
         match, error = find_build_failure_description(lines)
         if error is None:
             if match:
diff --git a/ognibuild/requirements.py b/ognibuild/requirements.py
index e0ad842..c131f67 100644
--- a/ognibuild/requirements.py
+++ b/ognibuild/requirements.py
@@ -334,6 +334,12 @@ class JDKFileRequirement(Requirement):
         return posixpath.join(self.jdk_path, self.filename)
 
 
+class JDKRequirement(Requirement):
+
+    def __init__(self):
+        super(JDKRequirement, self).__init__("jdk")
+
+
 class PerlFileRequirement(Requirement):
 
     filename: str
diff --git a/ognibuild/resolver/apt.py b/ognibuild/resolver/apt.py
index 7969786..3d1679e 100644
--- a/ognibuild/resolver/apt.py
+++ b/ognibuild/resolver/apt.py
@@ -50,6 +50,7 @@ from ..requirements import (
     MavenArtifactRequirement,
     GnomeCommonRequirement,
     JDKFileRequirement,
+    JDKRequirement,
     PerlModuleRequirement,
     PerlFileRequirement,
     AutoconfMacroRequirement,
@@ -444,6 +445,10 @@ def resolve_jdk_file_req(apt_mgr, req):
     return None
 
 
+def resolve_jdk_req(apt_mgr, req):
+    return AptRequirement.simple('default-jdk')
+
+
 def resolve_perl_module_req(apt_mgr, req):
     DEFAULT_PERL_PATHS = ["/usr/share/perl5"]
 
@@ -547,6 +552,7 @@ APT_REQUIREMENT_RESOLVERS = [
     (MavenArtifactRequirement, resolve_maven_artifact_req),
     (GnomeCommonRequirement, resolve_gnome_common_req),
     (JDKFileRequirement, resolve_jdk_file_req),
+    (JDKRequirement, resolve_jdk_req),
     (PerlModuleRequirement, resolve_perl_module_req),
     (PerlFileRequirement, resolve_perl_file_req),
     (AutoconfMacroRequirement, resolve_autoconf_macro_req),